I built a Magic Square for certain welding projects where getting 90 deg can be difficult and accuracy is important. Seen this on (Fireball Tools Youtube) I used 2 inch by 3/8 inch flat bar for the edges as I had that in stock and also a 3/8 bolt 1 1/2 inch long with a lock nut to connect the two peace's, I welded the two pieces offset so that the edges will align ( add your washer first) I was able to find a tightening lever off a old computer screen mount but sure you can get that online or even use a bolt with a wing nut or weld a lever on a bolt and make the hole from 1/4" to 3/16" and tap and thread it ( was an after thought). Have fun
3 years ago
710
Basic