S&W J-Frame speedloader carrier

This is my custom speedloader carrier, designed to fit a Safarland Comp I speedloader for a five-shot S&W J-Frame in .38 ACP on a 1.5" belt.

This is my first atttempt at an OpenSCAD model, and while it is parametrized it's probably not as clean as it could be. I'm open to feedback and plan to eventually make this a customizable Thing.

The speedloader is held in place by friction from the "rim" that sticks up. I've tried several different heights and this one seems to be the best balance between holding the speedloader securely and being easy to remove. I've carried this for about three weeks now every day and have had no issues.