Bullet Feeder Spring Guide (openSCAD creator)
thingiverse
I've liked the idea of spring holder by yamadog but I've wanted a few modifications (screw instead of rubber band, chamfers on spring hole, different dimensions). I've created openSCAD model that you can use to create spring guides for your press/bullet feeder/powder measure combination. Pretty much everything (height of collar & spring guide arm, measure tube diameter, spring diameter, screw hole diameter, spring distance from powder measure, more) can be customized by simply changing parameters. If there are any problems with it let me know.
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