Checking the sailboat winches, I discovered that the stripper ring was missing on one of the 30 ST. Because it was difficult to find a trusted dealer, I decided to design and 3D print myself  the spare part I needed.

I have divided the piece into three to avoid supports. Being printed with ABS, i t is very easy to glue with acetone.

Although it does not fulfill a structural function, I have printed the piece with 6 perimeters and 30% infill.