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In this project, students will design assistive clips that attach to objects to make them more accessible for people with arthritis or a weak grip. The lesson begins with small-scale experiments called tolerance and flexibility checkers, where students design and 3D print various sized clips to determine the optimal shape for a pen clip. Students then go on to develop their clips into assistive writing aids in the form of a pen grip. With their new skills in place, they are challenged to design a unique assistive clip to fit an object of their choice. The final part of the lesson involves 3D printing, testing, analysing and suggesting improvements to their end-product.

Included Resources

Curriculum alignment documents (ISTE, NGSS, CCSS and UK National Curriculum Standards)

Example assistive writing aid model (STL)

Tolerance, flexibility and challenge worksheets (Google Docs and PDF)

Assistive clips explainer video (hosted on PrintLab's student portal)

Video design tutorials in Tinkercad and Fusion 360 (hosted on PrintLab's student portal)