3D Printing

I was super into 3D printing when the pandemic started (even a little before that).

You can find lots of cool things on https://www.thingiverse.com/.

There are two types of 3d printers:

1. FDM 3D Printing
2. SLA

Gaps and Tolerances

0.1mm - to fit with some force, 0.2mm - just fit edge to edge without force.

https://3dprinting.stackexchange.com/questions/6576/what-kinds-of-gaps-tolerances-should-i-use-when-designing-pieces-that-fit-togeth

Tips for 3D Printing (for FDM)

1. Print with a bigger nozzle size (so you can print faster)
2. Perimeters over infills
   1. Increasing infills is more obvious to make material stronger, but actually increasing the perimeter will be more useful most of the time
   2. Do this by increasing the outer perimeter (check your nozzle size so it’s a multiple)
   3. Also, infill is more likely to result in printer failure
3. Fillets and chamfer
   1. Use chamfer at the bottom of part, and fillet at top of part
4. Use test prints before the full part (don’t be lazy)
5. Avoid support structures as much as possible
   1. think of ways to avoid support, such as adding a 45 degree thing instead of 90 degree
6. Use off-the-shelf (OTS) hardware to make your life easier and your projects last longer