Base plate for _Locking ball and socket arm_

https://www.thingiverse.com/thing:824711
Locking ball and socket arm
by alexrich82,

I made a 5x5cm base plate, with 5 locking heads, spliced from one of the interlocking pieces. I also added 5mm Screw holes to fasten it to a piece of wood or something. I know it is small and close together, but it works perfectly for Model painting.