Quote Originally Posted by Jonathan View Post
No need to buy those... as Mark said all you need is dividers.
Hmmm... Dont have any but do have vernier calipers so might try that

Scribe a circle, or lightly touch the lathe tool to it whilst in the lathe to make a circle then use dividers to divide that circle equally - centre punch then a quick swing on the pillar drill. Equally nothing wrong with printing out a template and sticking it on - printers are pretty accurate.
Might have a go at one of those ways on some scrap bar..,

If you've got access to a milling machine then just put it in the vice, center drill (or spot drill) in mill and mark out the holes with that. Zero the X/Y dials in the center, noting in what direction you zeroed them so you can compensate for the backlash by always turning to that point in the same direction. Move it the correct distance using CAD program or simple trig to find the distances.
We have an old Bridgeport milling machine at work, not sure if it works though, will ask the guys tomorrow.

Cheers chaps, given me plenty to think about...