I misplaced my original desk clamp that came with my YetiCaster boom arm. It's easy to find other C-clamps, but it's NOT easy to find a clamp that fits the silhouette of the base of the arm.
Attach some self-adhesive padding to the end of the bolt and the underside of the desk clamp for a very solid fit.
I've also included the M24-2 Bolt I modeled to go with it. The C-clamp has M25-2 threads modeled onto it, it's a solid fit. If you have trouble with clearances on your printer, try scaling the bolt down to 98 or 99%.
I've included my 3mf which includes my PrusaSlicer settings.
Printed with:
Overture PETG, Digital Blue on "Prusament PETG" default profile
0.6mm Nozzle
50% Infill
Organic Supports on automatically-placed Support Enforcers
5 perimeters
5 top and bottom layers
I think 5 perimeters and 50% infill was overkill, your mileage may vary.
The author marked this model as their own original creation.