Spider - bike chain and gears
Copper Chain Snake - Handmaders club
Find Center of a Circle Using a Carpenter Square and a Speed Square
show your hand made tools - Page 6 - Pirate4x4.Com : 4x4 and Off-Road Forum
Posted Image . Great way to have an adjustable bending jig whether you are bending on the broad side of steel . and can also be used on angle iron to shape sled runners.
V Blocks for Jigging
Sheet Metal Bender Brake The Make (DIY) & First Use Stainless Steel BBQ - YouTube