This is a base for the flexible camera arm made by Teaching Tech.
It is designed to fit exactly on the extrusion profiles of a Prusa i3 MK3/MK3S.
When attaching the base, a really satisfying snap sound can be heared. For disattachment, just use the tiny "lever" on the bottom of the base and try to lift it.

I splitted the base in two parts. The Base and a ball link which is pressed on the base.
The ball link should connect to the links of Teaching Teach just fine.
I made different versions of the ball link.
Which to use depends on how accurate your printer prints with support and if you use soluble support.
For the base you need support. The ball link prints without support.
I used two perimeters an 10% rectilinear infill.
If the parts are to loosely you can use super glue to connect them permanently.
Personally, I like it when there is a perfect press fit.

If you have some suggestions to improve this base, please let me know.