While learning to use Autodesk Generative Design in Fusion 360 I needed a sample part to test the workflow and decided the Prusament PET-G Clamp could use some optimization.

I based the dimensions on the original Prusament PET-G Clamp so I could compare the two for strength and print time. It also means the parts are exchangeable.

Depending on your print settings this C-Clamp prints a bit faster than the original and uses about 20% less material. But more importantly it is capable of exerting much higher clamping force with less deformation.

While I was at it I also redesigned the Screw spindle as the original is a bit uncomfortable and the thread doesn't really print very well. I also added some fillets and chamfers to reduce stress concentrations.

I uploaded normal resolution STL's and also some High Quality ones for the clamp and screw (HQ suffix). These are very large files but contain a little bit more detail.

If you end up printing one please share som pictures!

Print instructions

I printed one in 0.15mm layer height with 4 perimeters and 40% Gyroid infill and it holds up nicely, but it's probably better to use 0.2mm layer height and more infill.

If you want to improve strength make sure to print the Screw more solid, as that part is much more likely to break than the optimized C-Clamp :)

No support needed.

Edit 28-10-2020: Some people have issues with the cap breaking when snapping it on the screw. It might help to heat up the cap in warm water before assembly, this softens the plastic a bit and should prevent it from breaking.
The cap is the one part that I didn't change from the original design :P