11-13-2013, 06:59 AM
(11-13-2013, 04:09 AM)DaveH Wrote: 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
Dave,
That technique works well for stuff that doesn't need to be accurate to the .001 inches. I use a version of that quite often. I draw it up in CAD and print it 1:1 making sure to include center marks on circles. That makes it easy to use a center punch to mark the hole locations.
Ed