Right......... I have a small penny washer 50mm with a 6mm hole in the centre. I want to mark out a small equal sided and equal angled triangle in the centre, the points of the triangle will be drilled with a 6mm drill bit, each point is to be 10mm from the outer edge of the washer, Hows the best way to mark the points ? or work out the size of the triangle ? thanks
Hopefully the attached will help. Print it out at 100% and cut and stick it on to a washer and centre punch and drill the three 6mm holes for the points of the triangle. Then I'd use that washer as a template to mark up the others.