Wire spool from old packing tape core

thingiverse

I use a tremendous amount of packing tape, leaving me with a plethora of empty cores scattered everywhere. I also have a constant need to wind wire onto spools. That's why this thing was created - it transforms an ordinary cardboard core from packing tape (76-77mm ID is standard) into a spool for holding wire. The sides feature several holes to secure the inner end and notches along the top edges to hold the loose end in place. There is also an optional stand with a crank and cog that makes winding wire easier. You'll only need one stand; simply spread the stand's sides apart and slot in your empty reel, ready for winding up. Print two copies of the spool sides, one copy of the other parts, and you're good to go. You may need to enlarge the 6mm axle hole in the spool sides to fit the connecting rod, which has a tight interference fit. Use a small screw (about 12mm) to attach the handle to the cog; a drop of glue can help keep them connected. Screw the stand down to the desired distance apart - mine is made from cardboard, but you might use wood or print a flat plate. It should be easy to drill out the wire-capturing holes if they're too small. This project was designed in OnShape and is a public document there called "Wire Spool For Tape Roll". You can find it here: https://cad.onshape.com/documents/24276ffbafa3dda770c54b6c/w/7e0e6be732d66d52ac7fd2ce