Singer 29k Top Tension Release Cup 8617

thingiverse

This is a recreation of part number 8617 for my Singer 29k4 leather shoe patcher. The dimensions are taken with a caliper, but the length is a guess based on how the original part looks and how the printed part fitted. It might vary between different versions of the printer. I had trouble getting the inner diameter of the tube being printed to exact specifications, and thus had to widen it with sandpaper. In the end the part fits perfectly and works as I imagine it's intended to. My only disclaimer is that I've not seen or had the original part installed on my sewing machine, and thus can verify that it functions exactly as the original part does.