This is a fun little block I came up with to make power winding safe and easy. Depending on how it is held it can either coil tightly or loose depending on what you are looking for. The video shows 14 gauge galvanized steel wire around a 3/8 inch guide rod. While this can coil aluminum it will mar bright or anodized aluminum. Bearing bronze 2.5x2.5x14cm makes up the main block. For safety reasons I use a variable speed drill.