I built the one in the picture. We didn't save drawings and just had a few simple sketches to build it from. When we make the next one, it will be much simpler and a little sturdier. We have broken the weld on the upright piece which clamps to a garden cart or bucket on a loader so will need to make this part a little better. We will also replace the 4 spoke pieces which keep the spool aligned as it winds with sheetmetal disks. The disks may be slightly dished, will be lighter and much simpler to fab.
I built the one in the