Made these for mounting some monitors, very sturdy!

   printing: 6 wall layers or more with 20% or more infill, i used the gyroid pattern. Petg, abs or similar material is recommended 

   assembly: 

   hardware needed: one hex bolt for the socket clamp and two allen bolts for running through the balls for added strength, nuts for all.

I used (8mm) bolts but Im sure (5/16)in would work also.

The balls were wanting to slip inside the socket clamp so I use some liquid rubber spray on them which helped  it grip it better.

For what I used them they worked very well, but I do not know how much weight it'll actually take! It is also supposed to be compatible with the original 1½in ram mount!