Parametric Spool Adapter for Sewing Machine
thingiverse
To sew effectively using SparkFun's conductive thread (https://www.sparkfun.com/products/8549), transfer it to a smaller spool if your sewing machine's peg doesn't match the big one from SFE. I made an adapter for this purpose, even though my printed version had poor quality. Just measure the required dimensions, modify the Scad file with some tolerance, print, and then spool away!
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