Lace Bobbin Winding Machine

Lace Bobbin Winding Machine

As coronavirus is forcing us to be more at home my wife decided to learn how to make lace (she prefers to say that "the stars aligned") - all of a sudden, she got all the basic equipment to start this new hobby from a friend.
The only missing part was the lace bobbin winding machine. As badly winded bobbins make a lot of trouble I decided to 3D-print a simple one.
It is hand driven with 1:5 gearup ratio. As the body is too large for my printer I divided it in two parts with a puzzle-like joint.

Assembly instruction:
- Attach the drive handle to a big gear. I used 4mm x 25mm self-tapping (Spax) screw.
- The screw itself is without thread in the 1st 10mm and this part should freely rotate inside the gear but should be tightly fit to handle.
- Put a washer between the gear and the handle.
- For the axle on the big gear, use M8 x 50mm bolt. Put the bolt through the gear and tighten with nut. After that put one skate bearing in the bolt
and push ever