Teddy Bear Wheelchair
First Year Engineering Design Project
Automated TBWC
Design Scope
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Creation of an automated Teddy Bear Wheel Chair (TBWC) with a small team of four multidisciplinary student engineers.
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With specific constraints, requirements, and goals we created the ideal TBWC to perform in the skills competition between our fellow engineering peers near the end of the semester.
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Goal orientation consisted of the machine to meet competition requirements of performing on two separate tracks; one track consisted of the rolling chassis test and the other track consisted of the functionality of the kicking mechanism.
![](https://static.wixstatic.com/media/fe2b0b_2675b22d68e04c6ebabe2630aff19821~mv2.png/v1/crop/x_31,y_7,w_678,h_680/fill/w_473,h_475,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/fe2b0b_2675b22d68e04c6ebabe2630aff19821~mv2.png)
![](https://static.wixstatic.com/media/fe2b0b_237817a51727497ea4860115ece3d050~mv2.png/v1/crop/x_34,y_34,w_360,h_375/fill/w_382,h_398,al_c,lg_1,q_85,enc_avif,quality_auto/fe2b0b_237817a51727497ea4860115ece3d050~mv2.png)
Prototype
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Design procedure incorporated Auto-CAD electrical drawings, SolidWorks parts and assembly drawings, as well as schematics and Arduino programming code.
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Build procedure incorporated a Meccano Kit, Arduino, and other electrical/hardware components to best fit the ideal machine.
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Goal of project was to incorporate safety and environment sustainability when creating a prototype and final design of the TBWC.
![](https://static.wixstatic.com/media/fe2b0b_e1e408b06b5f416283b3aea4017352fb~mv2_d_1600_1200_s_2.jpg/v1/crop/x_0,y_69,w_1579,h_725/fill/w_664,h_305,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/fe2b0b_e1e408b06b5f416283b3aea4017352fb~mv2_d_1600_1200_s_2.jpg)
![](https://static.wixstatic.com/media/fe2b0b_9db11ec74e0e4fb3a296d325ff36d0cf~mv2.jpg/v1/fill/w_367,h_563,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/fe2b0b_9db11ec74e0e4fb3a296d325ff36d0cf~mv2.jpg)
Final Design
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Included a Life Cycle Analysis with the components used and their manufactured parts, along with mass determination and tipping analysis to meet the safety requirements.
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Final product passed all of the safety, tipping, and mass procedures along with being the most aesthetic and environmentally sustained.
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Final product also completed both tracks of the automated run and the launching mechanism to shoot a ball over an obstacle into a net.
![](https://static.wixstatic.com/media/fe2b0b_bcb4e226305d403bb72b2b9ac81c0afb~mv2.png/v1/crop/x_23,y_14,w_657,h_587/fill/w_569,h_508,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/fe2b0b_bcb4e226305d403bb72b2b9ac81c0afb~mv2.png)
![](https://static.wixstatic.com/media/fe2b0b_65aa22d2f8bf4cecaaa0ffd411f93a2c~mv2.png/v1/crop/x_34,y_34,w_327,h_340/fill/w_361,h_375,al_c,lg_1,q_85,enc_avif,quality_auto/fe2b0b_65aa22d2f8bf4cecaaa0ffd411f93a2c~mv2.png)
![](https://static.wixstatic.com/media/fe2b0b_19c1f459ee2a4dd4a6594a8d0cd85519~mv2.png/v1/fill/w_688,h_426,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/fe2b0b_19c1f459ee2a4dd4a6594a8d0cd85519~mv2.png)
![](https://static.wixstatic.com/media/fe2b0b_0b1e7579233348c5ab8d43bb83cb2967~mv2.png/v1/crop/x_0,y_0,w_254,h_453/fill/w_238,h_424,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/fe2b0b_0b1e7579233348c5ab8d43bb83cb2967~mv2.png)
![](https://static.wixstatic.com/media/fe2b0b_6eec469d928b4b2785349411e04a4443~mv2.jpg/v1/fill/w_416,h_639,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/fe2b0b_6eec469d928b4b2785349411e04a4443~mv2.jpg)
![](https://static.wixstatic.com/media/fe2b0b_89fec9521ca241669eb0970e6c0b880a~mv2_d_1600_1200_s_2.jpg/v1/crop/x_0,y_120,w_1600,h_835/fill/w_567,h_296,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/fe2b0b_89fec9521ca241669eb0970e6c0b880a~mv2_d_1600_1200_s_2.jpg)
![](https://static.wixstatic.com/media/fe2b0b_f5312903190942e69ab8abe8dc73a8bb~mv2.png/v1/fill/w_366,h_294,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/fe2b0b_f5312903190942e69ab8abe8dc73a8bb~mv2.png)
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Motor Controller CCT. Incorporated onto a breadboard and run with Arduino code.
![](https://static.wixstatic.com/media/fe2b0b_1625f1df4a1f43e284e01c452849aeb9~mv2.png/v1/crop/x_26,y_24,w_496,h_336/fill/w_514,h_348,al_c,lg_1,q_85,enc_avif,quality_auto/fe2b0b_1625f1df4a1f43e284e01c452849aeb9~mv2.png)
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Bill of Materials
![](https://static.wixstatic.com/media/fe2b0b_1b2e151d2ce14005848970ed09358111~mv2.jpg/v1/fill/w_326,h_426,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/fe2b0b_1b2e151d2ce14005848970ed09358111~mv2.jpg)
Project Overview
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This first year project taught us how to work under constraints, requirements, and quick deadlines to create the most ideal machine to perform in a competition, along side of meeting the safety and environmentally friendly requirements.
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With this group oriented project, it created leadership, goal oriented mentality, and time management skills working under a specific time set using engineering skills, strategies, and tactics to meet the long-term and short-term goals.