Please put a guard on that angle grinder, that’s seriously dangerous, especially if the disc shatters. If you are going to post a video, you should be setting a good example.
Can't work with a guard. It blocks my view. Have been doing it for 18 years. No problems if to use a good quality cut-off disks. Same with a safety glasses... I had 3 time an eye's injury, but all ways when I've been using a safety glasses. Maybe it's just me )
Do you just take the required circumference and divide by 12 to get your outside radius per tread? I have a job my boss has priced for with a spiral staircase and am just trying to figure out the basics before we dive in and screw it up haha
The outer radius of the tread depends only on the selected outer diameter of the stairs, the diameter of the handrail and the size of the baluster's material. Minimum aisle width (distance between inside of a handrail and outside wall of a center post) 26" by code.
All drawings are shown and explained in the videos (part #1, part #2, part #3). Also you can fined those drawings in metric if you will go to my channel, select other Playlist (in Spanish)...