90 Degrees - Different ways to weld square tubing

Today, a short video where you can see how to connect steel square pipes in various interesting ways. To calculate other sizes of joins, you need to do a calculation. For example, square tube with 70mm sidewall. 70mm - 2mm (one wall thickness) = 68mm On the website for calculating formulas, we are looking for a formula to check the circumference of a circle. Where "r" we enter 68mm, which will give us a circle circumference of 427mm. 427/4 = approx 107 mm 107mm + 2mm (wall thickness) = 109mm. Thanks to this, we know that the length of the side cut will be 109 mm. Lastest video Kinetic Log Splitter - Build -    • Kinetic Log Splitter - Build | 0.7 sec Cycle   Making The Hydraulic VISE DIY [Plans] -    • Super Strong Hydraulic VISE DIY [Plans]