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.
The lesson can be incorporated into the study of physics, design technology, art and design, physical education, computing and maths (aligned to NGSS, CCSS, ISTE and UK National Curriculum standards). The material can be adapted for ages 8-16. Information on how to adapt the project is included in the lesson plan.
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)
Self-Paced Learning Option
PrintLab's student portal is home to the online learning resources required for each of PrintLab’s lesson plans (CAD tutorial videos, explainer videos etc), but it is also structured in such a way that gives users the option to work through each project online in a self-paced manner without a teacher/instructor. The perfect solution for distance learning, 3D printing clubs, passion projects or self-paced learning at libraries and makerspaces.