This looks pretty simple to make but for $38.95 over at Trick-tools.com you really can't beat that. Tube Welding Positioner, Welding Accessory, TC1
honda ss50 zz
Stevens Engineering’s 626 modular vise is a versatile workpiece clamping device for VMCs and HMCs.
Screwless Vise Clamps - The mounting blocks have counterbored bolt holes, accepting 3/8" and M6 socket head cap screws paired with T-slot nuts.
KTM EXC525 Supermoto with lots of mods!! (Engine Sound Only!) - YouTube
Qulbix Fat eBike
Electric bike motors...the best.
Using a marking gauge with a hole drilled in it to accept a pencil.