For my light weight system I needed some smaller balance weights. But not so easy to find low weight weights. I took my training weights, I don't use them anyway. But one problem, the hole is 26 mm and the shaft of the mount is 19 mm. I designed an adapter that let me use these training weights on the 19 balance shaft.
There is a STL file to download if you have need of this adapter. But the 3D-printed threads are not easy to get to fit each other. A calibrated 3D-printer make it easier.
Here is my 3D-print project:
http://www.astrofriend.eu/3d-printin...t-adapter.html
If you test print it, let me know if it works.
Lars