Mini C-Clamp (with interchangeable end-caps)

I needed some clamps to hold parts together while the glue dried.
I had problems with other clamps that had flat ends because they would slide off of parts that were not flat and/or had a texture.
Also the threaded parts were not strong enough because of the orientation they were printed (layer lines made them weak).
I designed the threaded parts to be printed on their side (the flat part doesn't affect the function of the threads).

There is a long and short version of the bolt and clamp depending on your needs.
The Clamp has a support for the ball that is easily removed.
 

The caps are interchangeable so you can change them depending on what you are clamping.
If anyone needs a different cap for a certain purpose, I can create it if you give me the specifics.
I made brims for all the caps except the flat one because Prusa Slicer didn't make them correctly.  In my case, I needed brims for all of them except the flat ones, but I included both in case you want to try it without.
 

The "Bolt_Knob" should be press fit, but you can glue it if it is too loose.

I also designed holders for the caps not being used so they won't get lost.
I designed a 3x3, a 4x4, and a 5x5.  I can make other combinations if needed.