Replacement Cotton Holder for Bernina Sewing Machine
thingiverse
This fits perfectly on my Bernina Bernette 430 sewing machine. The cotton holder that screws onto the back is exactly what I needed. A friend's machine was damaged, and they asked if I could create a replacement part. I made a rough design based on photos in OpenSCAD, then took precise measurements from the actual part. Printed in red, of course, it's not an exact replica of the original part, but the spacing for the cotton spindles is spot-on, as are the mounting screws. The original cotton spindles screw into a 3mm hole quite tightly. I used the fantastic Rounded Corners library for OpenSCAD from danielupshaw.com/openscad-rounded-corners.
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