About this 3D model

This is a customizable bobbin clip for Standard Class 15 bobbins to keep the thread from unravelleling. The original was thing 2630295 by xyzaxis - I remixed it to include a stepped washer plate to peg the clip to a Gutermann spool, both 247 adn 547 yard spools. stl's for basic clip and OpenSCAD source included.