11-13-2013, 04:09 AM
Greg,
One way (cheap,cheerful and ruff); if the flat bottom is (say) 6" in diameter I just draw a 6" dia circle with a pair of compass on plain paper cut it out and place it on the flat bottom aligning it up the best I can, then centre punch the centre.
A bit rough and ready
DaveH
One way (cheap,cheerful and ruff); if the flat bottom is (say) 6" in diameter I just draw a 6" dia circle with a pair of compass on plain paper cut it out and place it on the flat bottom aligning it up the best I can, then centre punch the centre.
A bit rough and ready
DaveH