Wool yarn unwinder
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Simplifies the unwinding of wool threads
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- Creative Commons — Attribution — Noncommercial
I have created a projekt here that simplifies the unwinding of wool threads from bobbins when crocheting or knitting, etc. The bobbin is put on and a ball bearing simplifies the unwinding.
A roller ball bearing size 6701 (Di 12, Da 18, h 4) is required for the conversion. An M3 threaded insert and an M3 screw (5-10mm).
I have created 3 different diameters of the pin on which the bearing is mounted. Depending on the quality of the printer it can be used. These three are 11.9mm, 12mm or 12.1mm.
The threaded insert is inserted into the top side of the spigot and screwed into place. The bearing is put into the bottom and both are put together.
It is mostly printable without support. Only the upper part requires support from the bed.