tag:blogger.com,1999:blog-87476414245519633292024-03-13T07:20:22.094-07:00TENNISBALWERPERAnonymoushttp://www.blogger.com/profile/06910532190458824125noreply@blogger.comBlogger75125tag:blogger.com,1999:blog-8747641424551963329.post-83361710735862880962014-06-04T03:45:00.002-07:002014-06-04T03:45:56.277-07:00INSTRUCTABLElink to the instructable of our product:<div>
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http://www.instructables.com/id/Detachable-ball-launcher/</div>
Anonymoushttp://www.blogger.com/profile/06910532190458824125noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-39372181001876425232014-05-26T15:30:00.000-07:002014-05-26T15:36:50.743-07:00Pictures of the final prototype <div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhBXtlSxGPqm-ZfB2e1DpKjyEnsXMciPADXVXU-k31vH-RuZfNub1Tt5rVFdgGQ0DgwueyOWz5QpTLgzb4cjAozklqjZrREa8UGFZX0KFEN4obu5YvqdElEW1vxcYtpeCs3ehorRW0phWs/s1600/DSC_0435.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhBXtlSxGPqm-ZfB2e1DpKjyEnsXMciPADXVXU-k31vH-RuZfNub1Tt5rVFdgGQ0DgwueyOWz5QpTLgzb4cjAozklqjZrREa8UGFZX0KFEN4obu5YvqdElEW1vxcYtpeCs3ehorRW0phWs/s1600/DSC_0435.JPG" height="212" width="320" /></a></div>
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<br />Anonymoushttp://www.blogger.com/profile/10007105117881726355noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-3439445769930542832014-05-26T15:20:00.000-07:002014-05-26T15:36:12.313-07:00Work in progress: the final prototype<div class="separator" style="clear: both; text-align: left;">
We lasered for the third time. This time we are happy with the results.</div>
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We connect the several plates together with the snap connections. We do this for the two halves.</div>
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We place the wheels in the part with the holes.</div>
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We attach the battery to the aluminum frame.</div>
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Then we put the second half on top of the first one.</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjk1X4Hx9-mPqSuyZE60Fppri1qn0b7zfFGOqUqIeNy8zjF2i-uRZPO4-Jxy4WQfEpISKq_qVFlk50mg-4ArbWfrJQBHMVPnckXxzskh2Fsj3-THW3-492CzBv63EY10Fua4LHNXe5Z3b8/s1600/DSC_0429.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjk1X4Hx9-mPqSuyZE60Fppri1qn0b7zfFGOqUqIeNy8zjF2i-uRZPO4-Jxy4WQfEpISKq_qVFlk50mg-4ArbWfrJQBHMVPnckXxzskh2Fsj3-THW3-492CzBv63EY10Fua4LHNXe5Z3b8/s1600/DSC_0429.JPG" height="212" width="320" /></a></div>
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These two will be fixed together with straps.</div>
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<br />Anonymoushttp://www.blogger.com/profile/10007105117881726355noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-59464736473893686202014-05-26T15:09:00.000-07:002014-05-26T15:35:15.444-07:00PROTOTYPE #27We cut a little more of the tube, because it wasn't enough.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhqVKyx5gkEqIJrhhULsMSZIk_wD16-gnvr2P31iYCRK5B1vinboENHqohwaSUSILgO0C4-l0Z9kv31AAtqaciN-vMwl1y-RYuE9ie87cHnMA0KNaCtYgqt0fkDEefOGR3mfQah61Pbf0pC/s1600/DSC02506.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhqVKyx5gkEqIJrhhULsMSZIk_wD16-gnvr2P31iYCRK5B1vinboENHqohwaSUSILgO0C4-l0Z9kv31AAtqaciN-vMwl1y-RYuE9ie87cHnMA0KNaCtYgqt0fkDEefOGR3mfQah61Pbf0pC/s1600/DSC02506.JPG" height="300" width="400" /></a></div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dzkBvjaD1Nuc6KHpcwNnKOb61HQdOgxZr_pKeMX4JhLON1S63JdEwm7Y5uf-YYhVUBHOOCyBCLHkkCLxKfr1Q' class='b-hbp-video b-uploaded' frameborder='0'></iframe><br />
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CONCLUSION:</div>
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Expected positive feedback: The ball launches in a nice curve.</div>
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Unexpected positive feedback: /</div>
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Expected negative feedback: /</div>
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Unexpected negative feedback: /</div>
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Makeabilityscore : 4</div>
<br />Anonymoushttp://www.blogger.com/profile/14452672165038763265noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-13659209383758563322014-05-26T14:58:00.002-07:002014-05-26T15:34:17.137-07:00PROTOTYPE #26We change the position of the tube, and we though that the ball lost power because the ball hits inside of the tube, so we took a piece of the ramp away so it wouldn't be in the tube as long.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgo2IREjrDZY-qxva5xo85xKnN7hax0m4pKr7cQLXTjiKz9ecHPLeI2GY-3Q5v4TwnO3n8MqTWdm-SPoDC2jtYbVOtwdNe-V2jfKwgbfl_ZaEp8T27zGE2DrBZq2bB32gXBBAcJcZj9lNEN/s1600/DSC02500.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgo2IREjrDZY-qxva5xo85xKnN7hax0m4pKr7cQLXTjiKz9ecHPLeI2GY-3Q5v4TwnO3n8MqTWdm-SPoDC2jtYbVOtwdNe-V2jfKwgbfl_ZaEp8T27zGE2DrBZq2bB32gXBBAcJcZj9lNEN/s1600/DSC02500.JPG" height="300" width="400" /></a></div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dzTjbsJqtB_L06vhkxEr8z1FDvhYKPg-PwVzSj0iFAgoPYb3sxHyOEou31rDjarPJntdvqQYob5AxgsJ4UYJQ' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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CONCLUSION:</div>
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Expected positive feedback: The ball is launched in a nice curve</div>
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Unexpected positive feedback: /</div>
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Expected negative feedback: The impulse is not enough because the battery was getting low</div>
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Unexpected negative feedback: /</div>
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Makeabilityscore : 4</div>
<br />Anonymoushttp://www.blogger.com/profile/14452672165038763265noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-8914770491737122372014-05-26T14:46:00.001-07:002014-05-26T15:32:28.775-07:00PROTOTYPE #25We thought maybe we could use some tube as a ramp.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg3ayV1Aa8NgfCHwpkqLfKni1PkeWsw2kEM3g9VWEIBS1CBoeJv5Oev4YxV3hKHcxAbAjD8fkT7jGp0jvBq2sscqCTWfkBIA-Oa52i8W9ysvc390jqpTcBv0i_HbnPN1m8-F1aNNcdeZr5b/s1600/DSC02494.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg3ayV1Aa8NgfCHwpkqLfKni1PkeWsw2kEM3g9VWEIBS1CBoeJv5Oev4YxV3hKHcxAbAjD8fkT7jGp0jvBq2sscqCTWfkBIA-Oa52i8W9ysvc390jqpTcBv0i_HbnPN1m8-F1aNNcdeZr5b/s1600/DSC02494.JPG" height="300" width="400" /></a></div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dxVn_45Xqr5Z5ffe8LY0H9cph7jHezRegXpdOepWcupRL23pUrOjBZv-7sSzF8xHoaF5hTaz46aNGtS4AgvUg' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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CONCLUSION:</div>
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Expected positive feedback: The ball shoots out in a high curve.</div>
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Unexpected positive feedback: /</div>
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Expected negative feedback: /</div>
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Unexpected negative feedback: The tube doesn't fit and shoots out with the power of the ball.</div>
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Makeabilityscore : 4</div>
Anonymoushttp://www.blogger.com/profile/14452672165038763265noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-40425312789261494322014-05-26T14:38:00.001-07:002014-05-26T15:31:02.967-07:00PROTOTYPE #24The important point in this prototype is the ball's exit. First, we don't use any aid.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEibJWZ3VmgsQUvd3Xx3R8gn4S8rniuYhs1UtAo75O9XdAdk1nBaRhRuEvu9MNvWuEi18dmFCZs7uRDaSHqVfAfasYSH4e42GaiPELFrHqzhib3gSlhJ0Bsk6S0UddiHUuStWCWmPgXjgLgx/s1600/DSC02496.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEibJWZ3VmgsQUvd3Xx3R8gn4S8rniuYhs1UtAo75O9XdAdk1nBaRhRuEvu9MNvWuEi18dmFCZs7uRDaSHqVfAfasYSH4e42GaiPELFrHqzhib3gSlhJ0Bsk6S0UddiHUuStWCWmPgXjgLgx/s1600/DSC02496.JPG" height="300" width="400" /></a></div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dzViSGkVu_gPpUVmDXGLc7KI8_i4N9YXgLIs1x1-3lex8jvoUn1pdpQEUPWxk1fSBmSrJr1_6qCPexO_6B8' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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CONCLUSION:</div>
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Expected positive feedback: The ball launches</div>
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Unexpected positive feedback: /</div>
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Expected negative feedback: /</div>
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Unexpected negative feedback: The ball shoots out towards the ground and doesn't fly far</div>
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Makeabilityscore : 4</div>
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<br />Anonymoushttp://www.blogger.com/profile/14452672165038763265noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-78256323628711933432014-05-13T14:36:00.001-07:002014-05-23T09:29:37.659-07:00CASEFirst we decided to make the case, using a vacuum forming process. This because it's relative easy and cheap at school. Nevertheless these advantages it's not the best solution for our case because the accuracy isn't that good; this resulted in a gap inbetween the two halves.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhRf5rqLTgPAm_qDWTEojVjvA2vpuB4et3plfjJWbpPvL__vJurgVCqFDPerB7hguOReU9AuQFEqnhJaXf4o9cbXg8gXjNaj0SGjW-GV1Uzm5IQipUsbPr6hKbchg1DTcApwp8HZnN804-s/s1600/WP_20140511_014.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhRf5rqLTgPAm_qDWTEojVjvA2vpuB4et3plfjJWbpPvL__vJurgVCqFDPerB7hguOReU9AuQFEqnhJaXf4o9cbXg8gXjNaj0SGjW-GV1Uzm5IQipUsbPr6hKbchg1DTcApwp8HZnN804-s/s1600/WP_20140511_014.jpg" height="320" width="192" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEggoaQwwrrNpzgG4V_6saR2J3vvUptSOsP2PN07wskZ_YFGem0TecCi5LD4Ug77dobtlD1Jwdj0XGu4hUzPvY9gWtGdfD64XfagrOaZlPZdSlWhLsfs-OjfxYghzxO0_simCQ_WGWNAM-Z5/s1600/WP_20140511_016.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEggoaQwwrrNpzgG4V_6saR2J3vvUptSOsP2PN07wskZ_YFGem0TecCi5LD4Ug77dobtlD1Jwdj0XGu4hUzPvY9gWtGdfD64XfagrOaZlPZdSlWhLsfs-OjfxYghzxO0_simCQ_WGWNAM-Z5/s1600/WP_20140511_016.jpg" height="320" width="192" /></a></div>
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After the photo session of our product we had the feedback to use another process to form our case to become a good finish of the case. A suggested method was using the lasercutter.</div>
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Finally we decide to go for a lasercutted ABS case (with the experience we have to bend materials using the lasercutter, we'll try to make a nice case in this way). These are the illustrator drafts for the lasercutter:</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjMLaf8YcAabc1INCoCy-BJA1boSgCMYcI6rfb8vQ_wa9DwEkO7jArwBkun6fILSapSzRA9Bx-vh9zYPVUjc_4L17rQrYukTcEd2bsfguvcBvpwZb6hFdNht2h3887ED_997CNQyIDmzR_X/s1600/TennisBallCase2V1.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjMLaf8YcAabc1INCoCy-BJA1boSgCMYcI6rfb8vQ_wa9DwEkO7jArwBkun6fILSapSzRA9Bx-vh9zYPVUjc_4L17rQrYukTcEd2bsfguvcBvpwZb6hFdNht2h3887ED_997CNQyIDmzR_X/s1600/TennisBallCase2V1.png" height="229" width="320" /></a></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgNcb_BPNxASQVO1RhEU4rs5K9LcJJpHCfQCcU01FG5Vxl_feIkCZzlKo9AtdrGCEsKHnrjO0KJnqdbsVfmASul8nilbPOrInuUXo6ga-nbUw7AEllmPQeEMiKsFX_UkeidZyNbbrxZ82rt/s1600/TennisBallCaseV1.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgNcb_BPNxASQVO1RhEU4rs5K9LcJJpHCfQCcU01FG5Vxl_feIkCZzlKo9AtdrGCEsKHnrjO0KJnqdbsVfmASul8nilbPOrInuUXo6ga-nbUw7AEllmPQeEMiKsFX_UkeidZyNbbrxZ82rt/s1600/TennisBallCaseV1.png" height="219" width="320" /></a></div>
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<br />Anonymoushttp://www.blogger.com/profile/06910532190458824125noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-27229801893632725172014-05-13T06:02:00.001-07:002014-05-13T09:38:03.962-07:00To do list- case (laser)<br />
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- instructable</div>
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- ramp</div>
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- attach system</div>
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- movie</div>
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Anonymoushttp://www.blogger.com/profile/10007105117881726355noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-2647881598410861782014-05-12T11:45:00.000-07:002014-05-12T11:45:20.960-07:00Exploded view<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhSl6yIf_NdsqjUt4WiSjxhHCXSXgCCcXFcI6TtMHQouOKnmI29FD3AkuV5NwxMEwfj6Vf_nC6aYaffyOXeVdzwNqyYx59Jrdg6NotiJDG-FsgB2yX9MFG2pt-EBDH8WRfoBff6iT1xthc/s1600/DSC_0162.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhSl6yIf_NdsqjUt4WiSjxhHCXSXgCCcXFcI6TtMHQouOKnmI29FD3AkuV5NwxMEwfj6Vf_nC6aYaffyOXeVdzwNqyYx59Jrdg6NotiJDG-FsgB2yX9MFG2pt-EBDH8WRfoBff6iT1xthc/s1600/DSC_0162.JPG" height="425" width="640" /></a></div>
<br />Anonymoushttp://www.blogger.com/profile/10007105117881726355noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-33523516557485859062014-05-12T11:43:00.000-07:002014-05-13T07:20:16.068-07:00Presstext<div class="MsoNormal">
Jana is een enthousiaste jonge vrouw die afhankelijk is van
haar trouwe viervoeter. Omdat haar hond haar overal begeleidt, zou Jana haar
graag belonen voor het geleverde werk. Ze zou dit graag doen door
tennisballetjes te smijten, beter gekend als het klassieke "à porte".<o:p></o:p></div>
<div class="MsoNormal">
Dit wordt echter bemoeilijkt door het feit dat Jana een
beperkte spierfunctie heeft, waardoor het voor haar onmogelijk is om een bal
voorwaarts -en vooral- ver weg te gooien. Deze gebreken staan dus een speelse
interactie tussen Jana en haar viervoeter in de weg.<o:p></o:p></div>
<div class="MsoNormal">
Het idee dat wij hebben uitgewerkt is geïnspireerd op een
professionele base-/tennisbalwerper. Bij dit systeem worden er twee wielen aan
het draaien gebracht met behulp van één elektromotor en een
tandwieloverbrenging. De tennisbal wordt vervolgens doorheen deze wielen
geperst en versneld; de tennisbal vliegt enkele meters door de lucht.</div>
<div class="MsoNormal">
Aangezien Jana in een rolstoel zit, moet ons ontwerp hieraan
aangepast zijn: een makkelijke aan- en afname is wenselijk. Een extra eis is
ook om -met wat marge- doorheen deurgaten te kunnen manoeuvreren.<o:p></o:p></div>
<div class="MsoNormal">
De uiteindelijke tennisbalwerper voldoet aan al deze eisen
en kan de bal een 15-tal meter ver schieten. <span lang="EN-US">Zowel Jana als haar hond zijn unaniem enthousiast!<o:p></o:p></span></div>
<div class="MsoNormal">
<br /></div>
<div class="MsoNormal">
<span lang="EN-US"><br /></span></div>
<div class="MsoNormal">
<span lang="EN-US">Jana is an enthusiastic
young women who depends on her dog. Because her dog accompanies and helps her
all the time, Jana would like to reward her for the work she does. She’d like
to do this by throwing tennis balls, also known as the classic “fetch”.<o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-US">But this
isn’t an easy task for Jana because she has a limited muscle function, because
of this she isn’t able to throw a ball far or even forward. Because of these
limitations it’s harder to have a playful interaction with dog.<o:p></o:p></span></div>
<div class="MsoNormal">
<span lang="EN-US">The idea
that we developed is inspired on a professional baseball/tennis ball thrower.
In this system there are two wheels which are made to spin by one electromotor
and two gears. The tennis ball is then pushed through these wheels and accelerated;
the ball is then airborne for several meters.</span></div>
<div class="MsoNormal">
<span lang="EN-US">Since Jana
is in a wheelchair, she has to be able to attatch and detach the launcher in an easy way. An extra demand is
that she should be able to pass through doors easily.</span></div>
<div class="MsoNormal">
<span lang="EN-US">The final tennis
ball launcher meets all these requirements and is able to launch a ball 15
meters far. Both Jana and her dog are unanimously enthusiastic!<o:p></o:p></span></div>
Anonymoushttp://www.blogger.com/profile/10007105117881726355noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-63402336769168580872014-05-06T15:10:00.000-07:002014-05-06T15:10:04.278-07:00Group picture<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhKrXbTIXVSrStgZ8iUhxSVeNy8E5MkLWxqzoFBCpGMk2UPLhC8c-GlZbWDMWbKCmRs-mQBCw58O_aH1B4MYmcFaZCPTsTkslrFJfQ0VIwJiZk8O_A0omVWHa0ctpP9ksEQynZ_V0Gb_7Q/s1600/DSC_0125.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhKrXbTIXVSrStgZ8iUhxSVeNy8E5MkLWxqzoFBCpGMk2UPLhC8c-GlZbWDMWbKCmRs-mQBCw58O_aH1B4MYmcFaZCPTsTkslrFJfQ0VIwJiZk8O_A0omVWHa0ctpP9ksEQynZ_V0Gb_7Q/s1600/DSC_0125.JPG" height="424" width="640" /></a></div>
<br />Anonymoushttp://www.blogger.com/profile/10007105117881726355noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-47140512499173070152014-05-06T14:58:00.000-07:002014-05-23T09:30:10.263-07:00Visit 4 to JanaThe previous attachment system did work but the result was too wide. Jana couldn't ride trough the door. So we tought about another solution. We came to a system where the machine is suspended from the armrest.<br />
We do this by attatchin a alluminium loop on top of the machine and because a part of the machine is under the armrest we gain a few centimeters.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi3QablutU5ZXVzYFl9g9mkOYcPiMrxCNMwh1R5LL8pzEy2231vE1xzdnDLQLbzOkByHcHNUdIGF_JYq2C_6uY9n2uH833kRx83QdqZMbZdEXHUJecG3NvcemP_HQEhyphenhyphen4pgkj0q6rSi3OQ/s1600/DSC_0120.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi3QablutU5ZXVzYFl9g9mkOYcPiMrxCNMwh1R5LL8pzEy2231vE1xzdnDLQLbzOkByHcHNUdIGF_JYq2C_6uY9n2uH833kRx83QdqZMbZdEXHUJecG3NvcemP_HQEhyphenhyphen4pgkj0q6rSi3OQ/s1600/DSC_0120.JPG" height="265" width="400" /></a></div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dwXips4nQ62ell4z4nlHbRYzM-To9E9qdieRUjkXnTzXPZhZbWTxqrUobVay2OVn6U-SQsmyDVca0-0Er1kZA' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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In the final prototype we'd like to attatch a screw at the top so Jana can fixate the machine.</div>
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To detach the machine Jana first has to loosen the screw and then by lowering her wheelchair on the same system that was used in the previous test.</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhh6zHTlGa05cxqiuj2nnkimfrvpCWMBBABjM4OtnZt5hx1baA4uJaoYypcw8NfPZ2eDimzsB3fPwf_S8Wa05Q3DEj_U_qaiFU3gCgVuh_mQvkDEBcdhtCG-wqa4MAi201aVwaaoqCLHCY/s1600/DSC_0114.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhh6zHTlGa05cxqiuj2nnkimfrvpCWMBBABjM4OtnZt5hx1baA4uJaoYypcw8NfPZ2eDimzsB3fPwf_S8Wa05Q3DEj_U_qaiFU3gCgVuh_mQvkDEBcdhtCG-wqa4MAi201aVwaaoqCLHCY/s1600/DSC_0114.JPG" height="265" width="400" /></a></div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dw_35GvJwb_LeQNTv0ck5qmh0RU0wiLkYU_FUAxmqLq3d-ppGSxSoPL9MKT2Gk50SnOsFPdvlpRE13YCxTl5g' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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We also tested if she was able to drive through a door.</div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dxfm1xD083kyLDRBBOFISjLMMcTeMjWXfRHYwk806k8u7bMegHXnkemrqgrRm-0WdWHZolDP4afg3GEoJNVIQ' class='b-hbp-video b-uploaded' frameborder='0'></iframe><br />
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We also tested the latest version of the machine itself. Jana aswell as her dog were happy with the result.</div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dzNvpc-r5JuMuuuSoKzdP44pUVzSCcffn7C7WZHF-UNwcUuamc0zoRWhxW2GDZcqUqv5h8PlKVBugQp07GjqQ' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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<br />Anonymoushttp://www.blogger.com/profile/10007105117881726355noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-36946256732361932262014-05-06T13:53:00.003-07:002014-05-06T13:53:48.164-07:00DIMENSIONS CASEToday we decided our final dimensions after Jana's visit.<br />
The case will be divided in two halves: one for the wheels and gears, one for the motor, battery and other electrical components...<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQrBs-qJHDcJFypWia4i23Y2Jp0OpLWyg_B5J8m1wXgIq4cN_Xlzu3Z7YyLsTsiqvdSqLPW6ZgYLlm0BzAUsYRJ4JhfGSvQWMou8Sya_-TNTLEtR5LMSuUVnoHtwRqaBuANoPd7Xb0L4V9/s1600/untitled.102.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiQrBs-qJHDcJFypWia4i23Y2Jp0OpLWyg_B5J8m1wXgIq4cN_Xlzu3Z7YyLsTsiqvdSqLPW6ZgYLlm0BzAUsYRJ4JhfGSvQWMou8Sya_-TNTLEtR5LMSuUVnoHtwRqaBuANoPd7Xb0L4V9/s1600/untitled.102.jpg" height="302" width="640" /></a></div>
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Dimensions:<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDQO7k26wvstssAfFE-Zblu4YjthkMFUWBMMi_WZ2d8k3rGblV8fAnA9xCSFzcnvzFlY9yN6a4Q_ZxJqcWkTXp56lYMgTsbM1-u07XYJ3DfzcvdtqWZPOat-P_-pUtueVSywptyv05FdCA/s1600/wheelhal.png" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDQO7k26wvstssAfFE-Zblu4YjthkMFUWBMMi_WZ2d8k3rGblV8fAnA9xCSFzcnvzFlY9yN6a4Q_ZxJqcWkTXp56lYMgTsbM1-u07XYJ3DfzcvdtqWZPOat-P_-pUtueVSywptyv05FdCA/s1600/wheelhal.png" height="370" width="640" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgA1aHMBFbUPOaRCLlV4ES4ylTofanxrksP9F2yFRy-eDAceli4jmydwv9A83tfm6p6NsC5f6s9Kac88pFlExTVxPeOY36d4pPZRzB9dCChWL4Q4eB7FenNtyfAah2PTPUXP4t3HZdzT1nw/s1600/electrichalf.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgA1aHMBFbUPOaRCLlV4ES4ylTofanxrksP9F2yFRy-eDAceli4jmydwv9A83tfm6p6NsC5f6s9Kac88pFlExTVxPeOY36d4pPZRzB9dCChWL4Q4eB7FenNtyfAah2PTPUXP4t3HZdzT1nw/s1600/electrichalf.png" height="336" width="640" /></a></div>
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We will form a mold in PU foam and vacuum form it in PS (white, 2 mm thick to have a sturdy case)</div>
<br />Anonymoushttp://www.blogger.com/profile/06910532190458824125noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-78289304298071538232014-05-04T12:21:00.000-07:002014-05-06T13:23:12.034-07:00PROTOTYPE #23After we got all our parts, we started to build our final prototype.<br />
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To test if everything works fine, we builded a test arrangement.</div>
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For our final prototype, we used:</div>
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- 2 C-profiles</div>
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- 2 wooden wheels (diam 100 mm)</div>
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- 2 gears (diam 145 mm)</div>
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- 45 mm between wheels</div>
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- 12VDC motor, 35W (heavier than previous motors)</div>
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- 1 Fader to regulate speed of wheels</div>
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- 4 copper gliding bearings</div>
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- some bolts to keep everything together</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSA2Vq64aYitaegXrz0CAdnSaVIg-UhetuD2ra-tAxgh60FdIRdRDzajzqI8jNQ6U4-l27dDirCX-GuD-WfnAhs8G6B7w6PVSPXxfq3miFbC3a-U76-VsEQs8hJ6gWkgfjYQrBHiW2O65m/s1600/DSC01218.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiSA2Vq64aYitaegXrz0CAdnSaVIg-UhetuD2ra-tAxgh60FdIRdRDzajzqI8jNQ6U4-l27dDirCX-GuD-WfnAhs8G6B7w6PVSPXxfq3miFbC3a-U76-VsEQs8hJ6gWkgfjYQrBHiW2O65m/s1600/DSC01218.JPG" height="400" width="223" /></a></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhEmnJr1ytYE4204xJQAXP1oTB0AbfRLAFdqcaIGNKp0RTZoWhCq-F-KgD-hz2PLLys6LhADY9O2810-eG8Ye3CaF7YCE2DgA6p8JrHfA87xPz1xESSahOcf84jpxxNwZlAdSN5g09cvikb/s1600/DSC01219.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhEmnJr1ytYE4204xJQAXP1oTB0AbfRLAFdqcaIGNKp0RTZoWhCq-F-KgD-hz2PLLys6LhADY9O2810-eG8Ye3CaF7YCE2DgA6p8JrHfA87xPz1xESSahOcf84jpxxNwZlAdSN5g09cvikb/s1600/DSC01219.JPG" height="223" width="400" /></a></div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dw7B3Qo-DMGQWXZnwhxjmrqyGfDgExkLgXkBLhoREAN-pOOh2RnplqL9W8mPsPWgw12RH2ADuypwaVprCIF-Q' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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Conclusion:</div>
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Expected positive feedback: The system works and the ball shoots further.</div>
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Unexpected positive feedback: /</div>
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Expected negative feedback: /</div>
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Unexpected negative feedback: - Battery is low after 5 minutes, motor asks too many ampères and goes off quickly.</div>
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- Fader is too weak and can't resist the high ampères flowing through.</div>
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Makeabilityscore : 2 (4 hours work)</div>
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Anonymoushttp://www.blogger.com/profile/06910532190458824125noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-58143193325515669822014-05-03T01:28:00.001-07:002014-05-06T14:59:28.757-07:00Visit 3 to Jana<div class="separator" style="clear: both; text-align: center;">
We tested the attachment system with a rough prototype that presents the size. The system defenitly works, we will only need to attach the final device on the right height to go under and over it with the wheelchair. </div>
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The bolts in the prototype are not the right size yet, that's why the prototype is hanging so loose, hat problem will be solved in the final product. </div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dzZYC1Ri9x8uFF_4guK7kyJUIXIPlItcUkUv2UhOCE20MfeOY0MzZK4A31meODM9xC4oqyVw4rcDakczpw0mQ' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
<br />Anonymoushttp://www.blogger.com/profile/13828846019636566394noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-5741188690642821672014-05-02T13:24:00.003-07:002014-05-02T13:24:58.000-07:00DIMENSIONS WHEELCHAIROur client Jana, momently has a Permobil C300 to learn how to ride it in awaiting of her Permobil C500 Lowrider. This wheelchair has a similar wheel base and attachment rail, so we decided to design our product for this wheelchair.<br />
<br />
We took some measures to see how large our tennisball thrower can be.<br />
The Permobil can move vertically about 13,5 cm, so we can use this for the <a href="http://tennisbalwerper2014.blogspot.be/2014/04/the-system-to-engage-product-to-chair.html">attachment system</a>.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgLozrW2FvQdJpmchSI-bd1IqQ0pmp6H7KoDfVGh3lj_kKypLGVWqS8sHAiB0uyVZgOMby0aTNPpQwJabcHXfz5BTn6UbGgDEi-h1cg3Ng4MG5xcPdCRRpdgkj-6E88OJD11duzS6z9Vt1b/s1600/Dimensions+wheelchair.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgLozrW2FvQdJpmchSI-bd1IqQ0pmp6H7KoDfVGh3lj_kKypLGVWqS8sHAiB0uyVZgOMby0aTNPpQwJabcHXfz5BTn6UbGgDEi-h1cg3Ng4MG5xcPdCRRpdgkj-6E88OJD11duzS6z9Vt1b/s1600/Dimensions+wheelchair.png" height="464" width="640" /></a></div>
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We also measured the door width and the width of the wheelchair to see how wide we can go so Jana can still pass with the tennisball thrower attached.Anonymoushttp://www.blogger.com/profile/06910532190458824125noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-4933153906814169042014-04-25T15:14:00.000-07:002014-04-29T10:56:32.959-07:00ATTACHMENT SYSTEMThe system to attach the tennisball thrower to the wheelchair/table.<br />
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We believe in a system with bolts (1) that would be on both sides of the product and a support bolted to the seat (2)<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNWM2KXVrxKe7si3bBLEyvyqlXSxvYtaJGZsPSgphZOiv8s6JNVGBspMs_yd_egotDXqTca_Ahx1hxc8Qn0nKs9a8hIse9dx3W1I50qtIkYhykwLVD6LlAR_C1oph1LWM_yrzDzmokAc_J/s1600/soporte+y+lanzador.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNWM2KXVrxKe7si3bBLEyvyqlXSxvYtaJGZsPSgphZOiv8s6JNVGBspMs_yd_egotDXqTca_Ahx1hxc8Qn0nKs9a8hIse9dx3W1I50qtIkYhykwLVD6LlAR_C1oph1LWM_yrzDzmokAc_J/s1600/soporte+y+lanzador.jpg" height="320" width="234" /></a></div>
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When the product is not used. </div>
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We've thought of a more ergonomic and easier system for Jana to store because she can not lift her arms to great heights. </div>
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It is bolted to the a T-slot onto the table. As shown in the example.</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhje3WkvP97N_RXwhljNXgE6ZNyvigrLp48aFHMcuFFKdHpScnZ8wUqhISP0Y7n2yfeb0PaXeKFwB9vzOkgQgQ6Wne7F-SIKgGT0nfRUf7GxyMgkD2sKMLLk9Ewfmw1n944mpvbe9UxUSlz/s1600/final.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhje3WkvP97N_RXwhljNXgE6ZNyvigrLp48aFHMcuFFKdHpScnZ8wUqhISP0Y7n2yfeb0PaXeKFwB9vzOkgQgQ6Wne7F-SIKgGT0nfRUf7GxyMgkD2sKMLLk9Ewfmw1n944mpvbe9UxUSlz/s1600/final.jpg" height="241" width="640" /></a></div>
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When the product is used.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZgP1aJSc2fu1_pOf0do5I_bDo6OfvxR2TRx-PbNpRAmLqTkgaXLoe2O6V9AMJmTTb9YDACWdKhb4LHnZrRT3Hek9M0gUSW-_d8eEfvQWXLMfsOrk8Pj3A_AUedl3fLk9KOkKXXgn6Lfmy/s1600/final+silla.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZgP1aJSc2fu1_pOf0do5I_bDo6OfvxR2TRx-PbNpRAmLqTkgaXLoe2O6V9AMJmTTb9YDACWdKhb4LHnZrRT3Hek9M0gUSW-_d8eEfvQWXLMfsOrk8Pj3A_AUedl3fLk9KOkKXXgn6Lfmy/s1600/final+silla.jpg" height="242" width="640" /></a></div>
<br />Anonymoushttp://www.blogger.com/profile/14452672165038763265noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-85910643319496474042014-04-22T05:20:00.000-07:002014-04-22T07:36:28.453-07:00SELECTION MATRIX<div class="separator" style="clear: both; text-align: center;">
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<a href="http://3.bp.blogspot.com/-LkLhhxKxEUY/U1Z-YMQCJQI/AAAAAAAAD1M/gsn6W5pHeXQ/s1600/Selection+matrix.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://3.bp.blogspot.com/-LkLhhxKxEUY/U1Z-YMQCJQI/AAAAAAAAD1M/gsn6W5pHeXQ/s1600/Selection+matrix.PNG" height="205" width="640" /></a></div>
<br />Anonymoushttp://www.blogger.com/profile/13828846019636566394noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-43500071320964657762014-04-22T04:37:00.000-07:002014-04-22T05:39:22.242-07:00PROTOTYPE #22In this prototype we made a variation of the previous catapult. In this catapult Jana should be able to wind the catapult herself.<br />
The mechanism works but the ball doesn't fly more then 40 cm.<br />
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dxFBEmgusTwO57YnH77beIEDXUJImSShjpnzWTdOtB3gMuqAlNQnN5q92e2G-3RbwsV521UAMGYnLAfxkxjpA' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dwaU9V_bwMap6SpKOpglfMZDIiConrZupUnLS_YLOn5fwRLUfjYnuBwSHRa3Lcj4EWVlp2YPVatRTnv-5yz9A' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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Conclusion:</div>
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Expected positive feedback: The system works and the ball lounches.</div>
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Unexpected positive feedback: /</div>
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Expected negative feedback: The ball doesn't fly far.</div>
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Unexpected negative feedback: The ball sometimes falls out of the holder.</div>
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Makeabilityscore : 4</div>
Anonymoushttp://www.blogger.com/profile/10007105117881726355noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-83871445653864495472014-04-21T05:24:00.000-07:002014-04-21T05:25:37.350-07:00PROTOTYPE #21<div class="separator" style="clear: both; text-align: center;">
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<span style="text-align: left;">In this prototype, we made a general catapult. By using 2 big elastics, the ball gets a good speed to fly away for about 5 metres.</span></div>
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<span style="text-align: left;">The catapult gets tension by the dog pulling the cord untill it fits after the hook. If that is done, the ball is ready to be launched anytime Jana wants by pushing the cord up. (which is very easy to do)</span></div>
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<span style="text-align: left;">By moving the wheelchair up and down, it's possible to aim. </span></div>
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<a href="http://1.bp.blogspot.com/-pF6FVHUthEA/U1UF7O9u9nI/AAAAAAAAD0k/mLlnrPkhQNA/s1600/SAM_1669.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://1.bp.blogspot.com/-pF6FVHUthEA/U1UF7O9u9nI/AAAAAAAAD0k/mLlnrPkhQNA/s1600/SAM_1669.JPG" height="240" width="320" /></a></div>
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<a href="http://2.bp.blogspot.com/-lq-9pxnHS9k/U1UF7ZF7hEI/AAAAAAAAD0o/iOlF7U9q3Js/s1600/SAM_1670.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="http://2.bp.blogspot.com/-lq-9pxnHS9k/U1UF7ZF7hEI/AAAAAAAAD0o/iOlF7U9q3Js/s1600/SAM_1670.JPG" height="240" width="320" /></a></div>
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Getting ready:</div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dwAKQ9oSvwvsbmBzDqsh_jtziRoyh3LuZN5UuFnimej3_keeXBoJPEQreOQ-mc77wo39Zqy4y2ZeuQkE0hL6g' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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Launching: </div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dxiKnoExQZ1EDZ9WZ9nkttBAr1x7oXAy0aYypp8Esu1FO5KSwn6qN8NNd6nppVx8Q_Spx7t161ozaTYAuyR7A' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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CONCLUSION:</div>
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Expected positive feedback: Easy to launch once it has tension. </div>
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Unexpected positif feedback: Less dangerous than we thought. Shoots quite good. </div>
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Expected negatif feedback: It's a position that's not very reachable for Jana.</div>
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Shoots not that far as necessary. With this system, it's impossible to change the shoot range.</div>
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Unexpected negatif feedback: /</div>
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Makeability score: 4 </div>
<br />Anonymoushttp://www.blogger.com/profile/13828846019636566394noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-23412011796857304532014-04-21T04:19:00.000-07:002014-04-21T07:05:45.039-07:00SPRING We bought a toy for use the spring that this had, for we could do prototypes, at the time of testing the toy, we realized that this provided a new idea which we had not worked, that was the convination of the spring and the tube sucking the air, an interesting idea.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgykbmGMSb-wL73zFA5Jr2_nd3rjMwwGTV5Mn6KDpbNPkGOXAmv6JDFZzn-dfV4KsGRROP-xUo5Yz50yPcdilAtj6vN0__kvt7J8Weth7PnJcxj1qk4-7CxrdlMI5MNBRNjcdDHJtWatib4/s1600/DSC02341.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgykbmGMSb-wL73zFA5Jr2_nd3rjMwwGTV5Mn6KDpbNPkGOXAmv6JDFZzn-dfV4KsGRROP-xUo5Yz50yPcdilAtj6vN0__kvt7J8Weth7PnJcxj1qk4-7CxrdlMI5MNBRNjcdDHJtWatib4/s1600/DSC02341.JPG" height="240" width="320" /></a></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhfLIooulNzt-Ft5fKsPRmu0c6vxbPOjg4-zTbh-1ns1LRscD8y-hLEUL4s2zLBKQP8INDCl-PNLWyxiqIpfSg3KkpdgByoDV-cnehmF3QWxZK0I_z6lDDVC88D7Waix1DwsaWX2h2kjnNs/s1600/DSC02340.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhfLIooulNzt-Ft5fKsPRmu0c6vxbPOjg4-zTbh-1ns1LRscD8y-hLEUL4s2zLBKQP8INDCl-PNLWyxiqIpfSg3KkpdgByoDV-cnehmF3QWxZK0I_z6lDDVC88D7Waix1DwsaWX2h2kjnNs/s1600/DSC02340.JPG" height="240" width="320" /></a></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEim87rCDlKoicG5QCvKlm8AJ-bl7sRpx8XHkj6Tvy0ChYDVAJeVKmxWLquSwLDXyTUFyOWCr_8i0R9YaSuyX8Kp7pg8Yq0RiMjwooykgH3NqqWLik62TR9tAuVIchyphenhyphenj3roJCnU37HD0JE2n/s1600/DSC02342.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEim87rCDlKoicG5QCvKlm8AJ-bl7sRpx8XHkj6Tvy0ChYDVAJeVKmxWLquSwLDXyTUFyOWCr_8i0R9YaSuyX8Kp7pg8Yq0RiMjwooykgH3NqqWLik62TR9tAuVIchyphenhyphenj3roJCnU37HD0JE2n/s1600/DSC02342.JPG" height="240" width="320" /></a></div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dyugEc-DPv1vAJbsfW1UvZqOJGTExvsEcFOaTbt9MbloHkCBuRIRVSCfO8unRhJK7xUnSioWfr47ECnxsGZ' class='b-hbp-video b-uploaded' frameborder='0'></iframe><br />
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CONCLUSION:</div>
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Expected positive feedback: Fly about 15 meters.</div>
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Unexpected positive feedback: It's a good combination. </div>
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Expected negative feedback: It's needed much force for Jana this mechanism is not good</div>
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Unexpected negative feedback: /</div>
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We perform different ideas for a prototype, we want to use elastic spring like mechanism principal, these are some of the ideas realized.</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNGzP00fPU_DAXBeMyM9gMB0wyEeM3EF1NgLEnaZHlEuCciHTQRTpYWprO3qB8rI4fdsJXU0sBqbOiX75yPPo7g3Ycl5YCesAEkJdMvNcivwqJ-7q1QvC9vJbMQVWg1ATE_HOiMFHJtBYI/s1600/DSC02343.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiNGzP00fPU_DAXBeMyM9gMB0wyEeM3EF1NgLEnaZHlEuCciHTQRTpYWprO3qB8rI4fdsJXU0sBqbOiX75yPPo7g3Ycl5YCesAEkJdMvNcivwqJ-7q1QvC9vJbMQVWg1ATE_HOiMFHJtBYI/s1600/DSC02343.JPG" height="320" width="255" /></a></div>
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<span style="background-color: #f7f7f7; color: #3e454c; font-family: Helvetica, Arial, 'lucida grande', tahoma, verdana, arial, sans-serif; font-size: 12px; line-height: 13.963635444641113px; text-align: left; white-space: pre-wrap;">Sketches 1</span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8sU7mf1vsaxBP3cLtcEG3PGImEqaWSbBCEzx2AjEp1QPX518KjW8LNGNcabS-PDfGSvkJ2orOQ0zda9qVWcW_v05EWQVMtk6-Ex7mNqMphQoCX3Xp_w4-LViiMiW7Cp0pBd1YewrRTY9v/s1600/DSC02344.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8sU7mf1vsaxBP3cLtcEG3PGImEqaWSbBCEzx2AjEp1QPX518KjW8LNGNcabS-PDfGSvkJ2orOQ0zda9qVWcW_v05EWQVMtk6-Ex7mNqMphQoCX3Xp_w4-LViiMiW7Cp0pBd1YewrRTY9v/s1600/DSC02344.JPG" height="229" width="320" /></a></div>
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<span style="background-color: #f7f7f7; color: #3e454c; font-family: Helvetica, Arial, 'lucida grande', tahoma, verdana, arial, sans-serif; font-size: 12px; line-height: 13.963635444641113px; text-align: left; white-space: pre-wrap;">Sketches 2</span></div>
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<br />Anonymoushttp://www.blogger.com/profile/14452672165038763265noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-46739569967007253532014-04-16T03:00:00.001-07:002014-04-21T05:30:46.664-07:00PROTOTYPE #20Another variotion on<a href="http://tennisbalwerper2014.blogspot.be/2014/04/prototype-17_16.html"> protypes #18</a> and <a href="http://tennisbalwerper2014.blogspot.be/2014/04/prototype-19.html">prototype #19</a>.<br />
We attached the elastic again around the tyre + we folded the end of the tyre over for extra stifness to create more pressure.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjEdfgTQO1TCpdNw7Xi9Gr_lXEr07LvLQWeHPldvtvH1JMjm0aPdMIKE-Q9O8DHAINOxqH0ZPK6Vj4lPzT2QGcKCyHOWvZiz13qEdi-54Xcu6vdb_Twfx-_HPiNxAtEGtbDoDzRKkCMEMta/s1600/DSC01118.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjEdfgTQO1TCpdNw7Xi9Gr_lXEr07LvLQWeHPldvtvH1JMjm0aPdMIKE-Q9O8DHAINOxqH0ZPK6Vj4lPzT2QGcKCyHOWvZiz13qEdi-54Xcu6vdb_Twfx-_HPiNxAtEGtbDoDzRKkCMEMta/s1600/DSC01118.JPG" height="179" width="320" /></a></div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dx0jCtUikAe97qPorr8_1XH5-pB7qQz5MCEP_ldyJz7sWOC7axY_vKIucu6QRpj9llor0u45_Bs1dS_UBvM5g' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dwx3yAOwB_y7wRqtQHBrkYprZFLI-xH8870ZSmFj7Bjo5Ci1RKq8HDTquwfbFdiFxO29e4aHOP7nY1_tM70aA' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dxYrc3Y0JcUfbwFMGYurK_DO1vWaa-eERfAj1f0zrYJzKQUcWmJZsojIOD2UGN2SzhLxIoSrkDhNWV20xgP' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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By launching it, we achieved a distance of 8m, which is quite good!<br />
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CONCLUSION:</div>
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Expected positif feedback: More pressure was created using the elastic + folding.</div>
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Unexpected positif feedback: Shoots remarkably further than the previous version.</div>
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Expected negatif feedback: /</div>
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Unexpected negatif feedback: The tyre seems to blow up when inflated till the shooting pressure.</div>
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Makeability score: 4 (15 minutes)</div>
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<br />Anonymoushttp://www.blogger.com/profile/06910532190458824125noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-49641356952157206142014-04-16T02:48:00.003-07:002014-04-17T11:31:57.275-07:00PROTOTYPE #19Variation on <a href="http://tennisbalwerper2014.blogspot.be/2014/04/prototype-17_16.html">prototype #18</a>:<br />
Because the tyre didn't create enough tension to build up the air pressure, we tried to improve it with an elastic around the tyre.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgZV-vYnTUjzizJqenkRxnQq0jvq812tC_ud0mDTkFV3iCJU0uadmkMn_C1T7mVAnhYsGAHCcN7zimRRkWd9KSWkXxM1nKlE4HwI0UHOhiQ7s_npdeGiIxMi35SP3zGs4pubROHEtL7UO7i/s1600/DSC01115.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgZV-vYnTUjzizJqenkRxnQq0jvq812tC_ud0mDTkFV3iCJU0uadmkMn_C1T7mVAnhYsGAHCcN7zimRRkWd9KSWkXxM1nKlE4HwI0UHOhiQ7s_npdeGiIxMi35SP3zGs4pubROHEtL7UO7i/s1600/DSC01115.JPG" height="320" width="179" /></a></div>
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dyNE25_SzLWoOXhQ3KysSEpGCa7CnCUaG6Q44rI7v66JVRVzXVSJyWhAfxqMERtZsl-SHDl7WE65wHFKc1KPw' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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By launching it, we achieved a distance of 4m.</div>
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CONCLUSION:</div>
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Expected positif feedback: More pressure was created using the elastic.</div>
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Unexpected positif feedback: Shoots remarkably further than the previous version.</div>
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Expected negatif feedback: /</div>
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Unexpected negatif feedback: Shoots not as far as we wanted it.</div>
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Makeability score: 5 (15 minutes)</div>
Anonymoushttp://www.blogger.com/profile/06910532190458824125noreply@blogger.com0tag:blogger.com,1999:blog-8747641424551963329.post-19999409947391679192014-04-16T02:42:00.001-07:002014-04-17T11:32:23.221-07:00PROTOTYPE #18 Next protype is also by using compressed air. We used and old motorbike tyre (Ø60mm) to launch the tennisball (Ø67mm). We used the tension between the flexible tyre and the tennis ball to build up the air pressure.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgKFdbrfNxII4DngEK_0H9A7WFM9VRSdAFsBwNy0gZuigwlp5tnZE8HlB8bInEMawZi2aDHeDqIKXW2jGgKUIEIeTMX8nxbDxpfosAMlZcyLevQ8cOaFE0-xm-ga-owdEmveveSylEj6OL1/s1600/DSC01109.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgKFdbrfNxII4DngEK_0H9A7WFM9VRSdAFsBwNy0gZuigwlp5tnZE8HlB8bInEMawZi2aDHeDqIKXW2jGgKUIEIeTMX8nxbDxpfosAMlZcyLevQ8cOaFE0-xm-ga-owdEmveveSylEj6OL1/s1600/DSC01109.JPG" height="179" width="320" /></a></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjEtoNkjGjiHRmPSmURMxexPt2kxmRsIUo_n8NyZZ9l2HCuqYg5wNTEwbq01lK-S9ucQppjqXmHDEP6Et9yqHifrdlktTumpaFeqK5IJxX864szoh3gAl2EfFMAeMsAlLQaSn6B3up1fwXm/s1600/DSC01110.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjEtoNkjGjiHRmPSmURMxexPt2kxmRsIUo_n8NyZZ9l2HCuqYg5wNTEwbq01lK-S9ucQppjqXmHDEP6Et9yqHifrdlktTumpaFeqK5IJxX864szoh3gAl2EfFMAeMsAlLQaSn6B3up1fwXm/s1600/DSC01110.JPG" height="179" width="320" /></a></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPnmNVNIHzazVrVIi0APXWgiZ7FeiKzcum3rwH6RHtiqWeDAZzYhXSViU3mFUg3A3OCRXkkgMNyslXub8VMnhEgUVcpC0H5sVjot8tHswdW5WM6RaKwqyOADDaUdJMAkCZHsqbUrkVGB14/s1600/DSC01113.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPnmNVNIHzazVrVIi0APXWgiZ7FeiKzcum3rwH6RHtiqWeDAZzYhXSViU3mFUg3A3OCRXkkgMNyslXub8VMnhEgUVcpC0H5sVjot8tHswdW5WM6RaKwqyOADDaUdJMAkCZHsqbUrkVGB14/s1600/DSC01113.JPG" height="179" width="320" /></a></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhv-UkPk0rCPVMsE1K98rgWmRsKAXMeYD87hjG5GrjXo3Y8dr30eIEzZhxYy8l8X336a9V9jgPlxO-RBth3kabnAMSRv_4vLFUT9T1Gb5hyWQr5PrXXn6QnqlUx0GdMqVo2tW0MfXiiRAYe/s1600/DSC01111.JPG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhv-UkPk0rCPVMsE1K98rgWmRsKAXMeYD87hjG5GrjXo3Y8dr30eIEzZhxYy8l8X336a9V9jgPlxO-RBth3kabnAMSRv_4vLFUT9T1Gb5hyWQr5PrXXn6QnqlUx0GdMqVo2tW0MfXiiRAYe/s1600/DSC01111.JPG" height="179" width="320" /></a></div>
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The tension, created by the Δ 7mm, was not large enough to build up the air pressure to launch the ball properly.<br />
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<iframe allowfullscreen='allowfullscreen' webkitallowfullscreen='webkitallowfullscreen' mozallowfullscreen='mozallowfullscreen' width='320' height='266' src='https://www.blogger.com/video.g?token=AD6v5dzut9q5IEtXDUtjUmu4oQlYUefALmpxaWT98BZoe2cmLJG_nj7P8V1BBWVQPgKf-KzJOiiKegGTuNKVacC2uw' class='b-hbp-video b-uploaded' frameborder='0'></iframe></div>
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CONCLUSION:</div>
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Expected positif feedback: Some air pressure was created.</div>
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Unexpected positif feedback: /</div>
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Unexpected negatif feedback: Not enough tension to launch the ball properly</div>
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Makeability score: 4 (15 minutes)</div>
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Anonymoushttp://www.blogger.com/profile/06910532190458824125noreply@blogger.com0