Centroid Community CNC Support Forum

EDIT** I have resolved this problem.
Are the tool offsets for a parting and grooving tool different?
Do I need to setup my parting and grooving tool as 2 separate tools in the offset table?
On my lathe I have the grooving and parting tool as the same tool in the offsets table. Setup like the right side of the attached image.

AdamCNC wrote: ↑Tue Aug 10, 2021 5:27 pm 1) Are the tool offsets for a parting and grooving tool different?
2) Do I need to setup my parting and grooving tool as 2 separate tools in the offset table?
3) On my lathe I have the grooving and parting tool as the same tool in the offsets table. Setup like the right side of the attached image.

Adam

1) That is up to the programmer. They can be the same. Just recognize that if you change the offset it will effect the both the groove and cutoff dimensions. Most cases this would be alright.
2) Again this would be up to the programmer as stated in 1).
3) a. With the right view you have the center of insert set for the Z value. This means that you have to add or subtract half of the with of the insert to get the cutting positions for all Zs.
b. Standard practice is to use the front cutting edge as in the left view. For the cutoff Z dimension you would have to add the full with of the insert to Z. For the groove you would use the leading edge and this would match the Z dimension for the drawing. Less math. If you are using Intercon this is the best way. If you are using third party CAM software it may be able to be set up using center of the inserts. CAM software I have used in the past did not allow setting to center. There might be some CAM software that does allow this now.

My problem is when I set the tool offset like in the left side of the image on my original post I get a double unwanted shoulder on my part. If I set my tool offset up like in the right side of the image on my original post, my part does not have the shoulder that should be there. Also this is not an intercon part, I used F360 to program it. Francos PP.

You need to look at the setting in Fusion 360 to see how the post is handling the grooving cycle. Then have it set for the way the tool is being set.