Here are some Arca-Swiss compatible plates for your cameras/telescopes etc.
Some take a 3/8 bolt, some a 1/4 bolt. All should accomodate a D-ring.
Some have anti-slide pegs, some don't

I bear no responsibility for any damages you or your equipment may incur if a plate fails in any way. Check to see your print is robust enough and fits correctly - this is YOUR responsibility!

I like to use PETG, but I think ABS should also work well. Unless your camera is very light and you are very confident it's not going to get bumped, I wouldn't use PLA. YMMV.

As always, my designs are free to use. Please don't charge for these if you use them!
Also, always happy to get feedback; see remixes; or take any suggestions for improvement!