1/2 Inch PVC Ball Socket

This is a simple press fit socket for 1/2 inch PVC tubing. I used this to make a simple frame. Printed at 100% infill these are SUPER sturdy and take a fair amount of effort to insert. You may need to scale by minute amounts depending on the shrinkage of the material you are using.
I believe I printed these in PETG and they're a very snug fit. Good Luck!