I think where I went wrong was cutting to the circumference of the circle, then bending. obviously the ends were straight. I welded the ends together and ground it down then rolled again, which made it rounder but I over compensated, expecting it to just all round out but it went a bit wonky. it should be ok for what I need, its just not as accurate as I would like.
Ah yeah, that’s the problem. Use over sized material, roll more than a full circle then clamp (mole grip probably) at the correct diameter and cut through both ends at the same time with an angle grinder. That way you gets your size and the cut ends fit together perfectly.
I have this one
I think where I went wrong was cutting to the circumference of the circle, then bending. obviously the ends were straight. I welded the ends together and ground it down then rolled again, which made it rounder but I over compensated, expecting it to just all round out but it went a bit wonky. it should be ok for what I need, its just not as accurate as I would like.