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In this 2 part lesson, students will design and manufacture an assistive bottle opener to help users with arthritis or a weak grip to open screw cap bottles. The lesson teaches about the concepts of simple machines and lever principles, before students design their models in CAD software (Tinkercad & Fusion 360 tutorials included). The models are 3D printed, tested, analysed and can be improved in an iterative engineering design process.

Included Resources

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

Example assistive bottle opener model (STL file)

Class presentation (Powerpoint and PDF)

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

Levers and bottle openers explainer video (hosted on PrintLab's student portal)

Design evaluation worksheets (PDF and Google Docs)

Assessment rubric (PDF and Google Docs)