[cncbpt]

I was hoping someone here could help me with a programming problem on a TC22 with a dx32 control
I have 62 parts to setup and drill a bolt pattern which is no problem but I need to cut an o-ring groove around a .250 hole that gets drilled in the same surface
The o-ring groove is .093 wide with an o.d of .750 and is .05 deep
It is located at X +1.121 and y +1.344
The large bolt circle is around x0. and y0.
I just can't get the control to cut the circle at the desired location
If some one could shed some light on how to do this I would appreciate it
Just not sure in how to setup the i-j-k shifts
I am going to cut this with a 3/32 em so I only need to make a pass around the groove without
any cutter comp
I will do it in 3 step down passes to get to depth
Thanks for your time

[forhire]

Basically, subtract your cutter width (0.09375) from the OD (0.75) and divide by 2, that will give you your cutter center radius. Add this to your circle center I value, this will be your start point. I and J is your circle center. In the G2/G3 command, XY are your end points and IJ is your center. Something like this... check my math.

G0 X1.4491 Y1.3440
G1 Z-0.0225 F40.0
G3 X1.4491 Y1.3440 I1.1210 J1.3440 F40.0

[cncbpt]

Thanks FORHIRE
I read the programming manual a couple times regarding the use of G2-G3 and got it to run perfect
pretty much just like you are saying
Takes a few minutes to cut the 0-ring groove,just can't push that little cutter much
Cut 20 parts with the same em, so far so good
Thanks for taking the time to answer