Wool winder / spool

thingiverse

A major disadvantage of buying knitting wool from dope-headed hippies is the fact that it doesn't come in ready to use form. It has to be pre-washed, color-fixated and -last but not least- wound up onto spools or into the familiar playthings of the common household cat. In order to save my son from being used as a living wool-holder by his knitting-crazy mother, I designed this thing. Design was by myself, although I frankensteined parts from other things into it: http://www.thingiverse.com/thing:1832235 From this one I used the rollers as a mount for the skateboard bearings. https://www.thingiverse.com/thing:1959208 Here I used screw and screw hole of the back plate for the table mount. Design principle is a scissor-extender on two movable mounting plates. Two, because I was too lazy to design a fix for one of them. Some fixation for the mounting plates is provided by the friction between the bearings and the aluminium rod. Important ! The aluminium rod has to be of the anodized (matte) type to fit into the holes of the bearings and provide the necessary friction ! The whole device is to be mounted on the edge of a table w/ a max thickness of 30mm (less if you want to use a rubber protector on the mount). The rod will extend horizontally from the table. However, I found this to be a bit clumsy/unstable, so I will design a vertical mount later on. On printing: 50% is probably too much for most of the parts. However, the table mount NEEDS AT LEAST 50%. 70% is better. Ah, and use PETG for the table mount because PLA is not flexible enough. BoM (printed): 2 Mounting Plates Rod protector knob Table mount Screw Mounting bracket 8 scissor parts w/ thick end Thin scissor parts (count depends on desired extension) BoM (other): 2 608 Skateboard Bearings 8mm anodized aluminium rod M3x10 screws (lots of 'em) M3 Nylock nuts (again: lots of 'em) M3 screws (I think it was 16 or 18mm), new version uses 20mm M3 Nuts UPDATE ! I changed the design for the table mount from a horizontal rod position to a vertical one. Just choose the variant you desire. Hint: The plastic screw has a really tight fit. Scaling the width and height (NOT the length) of this to 99% improves usability a lot. Print Settings Printer: Anet A8 Rafts: No Supports: Yes Resolution: 0.15mm Infill: 50%