Re: Roundness accuracy on PCNC 1100
My 8 year old 1100 will cut a circle round within.0015. If it needs to be closer than that, I don’t want the job.
I make one part for my model boat hardware that needs to be .4995/.5000. That’s an outside diameter so I use a boring bar turned backwards and run the spindle in reverse.
Other than that, I’ll pass.
2 Attachment(s)
Re: Roundness accuracy on PCNC 1100
Quote:
Originally Posted by
Steve Seebold
I use a boring bar turned backwards and run the spindle in reverse.
Other than that, I’ll pass.
I use a left hand boring bar in a boring head on my 1100 . On a hole the size of 1/2" diameter I drill first then bore undersize with the boring head then using a floating reamer holder ream to size.
Don
Insert left hand boring bar in boring head
Attachment 422820
Floating reamer holder.
Attachment 422818