Fab Academy 2018 - Thierry Dassé
I have searched a way to fix parts of the modular e-bin. I think of doing prototype bins wall in MDF ( Medium Density Fiberboard).
Maybe plastic screws can be a solution to make a good plug system. So, I designed screws to make tests.
I did it in blender. I have to print screw and nut in 3D now to verify it works well.
Nut diameter is 0.5 mm higher than screw diameter. I hope it will be fine.
No need to use a screwdriver. I changed my screw design to be able to use a 2€ coin to screw. This coin diameter is 2.5cm and thickness is 2.3mm.
In my first screw prototype, I need different hole for bolt and nut. I have searched a way to have the same hole.
I can make an hexagon hole, so the nut can be blocked inside. but as I wanted the screw to rotate in the same hole,
I made a round screw tangent to the hexagon.
I now have to print it in 3D to make a test. With a 0.1mm layer height and 1.05mm wall thickness, nut will be build in 36mn and bolt in 47mn.
I printed my bolt and nut. I made a 16mm bolt thread diameter and 16.6mm nut thead diameter to have a 0.3mm float between bolt and nut.
Print bolt and nut are useable but float is a bit to high.
I will redo it with a 0.1mm float to see if it's better.