Solder Wire Holder

thingiverse

This is a simple holder for Soldering wire on a platform. The platform and the base are connected with a bearing for smooth rotation. You can design and print a simple cylinder part that would fit loosely between the platform and the pin on the body instead of the bearing, just enough to support it. Apart from the 3d printed parts i also used: - 1x 608 standard skateboard bearing (8mm core, a 22mm outer diameter and a 7mm width) - 2x M3 nuts - 2x M3 screws (length can be between 8 and 12mm) The tolerances are quite low and set according to what i normally use for my Prusa MK2. There are a couple of options to fit the bearing if the tolerances are not ok for you: 1. One option is to sand the inner diameter of the platform and the pin. 2. Use a hot air gun or a hairdryer to soften the plastic so you can push the bearing in. 3. If its too loose you can use a some heat shrink tubing to widen the diameter of the pin 4. If its loose use a drop of glue to the outside and the inner diameter of the bearing. You can also 3d print tube adapters to fit different diameters of the solder spool. I wanted to use the retract screw to wind the wire back but it doesn't work that well as you still have to rotate the actual spool with your hand to wind the wire back. One idea for the retract screw is to print some mini figure that you can glue on top which would rotate with your spool.