Hi there

I've CNC converted a Sieg X1 and have been finding my way around it for 4 months.

Recently I've been machining some small parts for model helicopters and needed to mill a circular pocket in the end of an aluminium bar to accept a bearing at each end.


I've been scratching my head about the best way of edge finding this as
wigglers don't seem to be reliable on a curved surface.

I've found 1 axis by edge finding the V block with a wiggler and doing the maths (edge + (v-block-width /2 - bar diameter/2) offset into the DRO to give the Y edge of the bar. However X axis is a little harder and resorted to using a bit of paper between the mill and edge with Y axis aligned to bar centre axis.


Then test machining a circular pocket and measuring the distance of pocket to edge of the bar in 4 directions and offseting the error to get a very acurate reference for the bar I have got radial to within .02 mm with this technique.

Is there an easier way to do this?


Seems like hard work

Cheers