Built this cable unwinder to handle 1000' spool of 12-2 for wiring the garage. Unwinding in a controlled fashion keeps the cable from becoming full of curley-Q's. Wanted something a bit more "cool" than the broomstick through the center, supported by two chairs/blocks/midgits/whatever. Can't take credit for the idea, it's how large cable spools are unwound (being supported on wheels).
View media item 29559Those cheapy rubber tire/wheel assemblies were on sale at HF for 3.50ish ea, took the tires off as all I wanted was the rims/bearing hub. Those were the only parts bought, everything else was stuff laying around.
1/2" copper pipe was the perfect size for axles.
View media item 29560I added the PVC roller to help remove the curl from the wire, as you pull wire, it passes under the roller slightly bending wire in the opposite direction it was coiled. I pulled 100+ ft off the roll without it and worked great but got thinking that as I near the end of the spool, curl of the wire will be greater (spool diameter diminishes). The V shape nature of the rims keeps the spool tracking nicely and the hubs aren't fixed to the axle so they can slide around to allow for variences or different size spools.
Invested probably 1.5 hr start to finish and now wire pays out nice and straight!