This is a double headed stud for camera equipment. 1/4 and 3/8 thread, print with 30% infill and also 100% infill under 100mm^2 on Prusaslicer.

I recommend ABS or tougher material. PETG can work but not as strong, I only recommend for lighter cameras under 2-3 pounds.

I designed it so you don't need supports, print with the bigger 3/8 thread on bottom.