In this 4-part lesson, students will design and 3D print their own assistive writing aid in the form of an attachable pen 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 the clip. Students then go on to develop their concepts and design their writing aids in Tinkercad software. The final part of the lesson involves 3D printing, testing, analysing and suggesting improvements to their end-product.
The lesson can be incorporated into the study of maths, biology, design technology and computing. The material can be adapted for ages 8-15. The curriculum is aligned to NGSS, CCSS and UK National Curriculum standards. A comprehensive list of standards met is included in the lesson platform.
In this project students will:
develop an understanding of tolerance and flexibility for 3D printed parts
conduct an experiment to explore the tolerance and flexibility of 3D printed clips with varying shapes and dimensions
use design-thinking and sketching skills to develop a concept for an assistive writing aid
use 3D modelling software to design their own assistive writing aid
use 3D printers to manufacture an assistive writing aid
analyse their work and the work of their peers to suggest improvements to their designs