Home Made U-Lock Bicycle Lock

Step 4 Make a Model and Gather Materials

The cardboard lock seemed about right, so I scavenged some stainless steel to make the real one. I wanted some heavy stainless that would actually be hard to cut through, but all I could find was this stovetop. As long as the finished thing looks fairly solid that's probably enough. I bought a four-pack of padlocks all keyed the same for $15, and it's time to cut metal. I marked the cuts and folds on the metal with a permanent marker. The little rectangles in the lower right corner are the cuts and folds to make the guard box around the padlock.