[Andy Graves]

We typically use new router bits in the CNC. However, we have recently started using sharpened bits to save money.

I am a bit confused on entering the tool comp. Do I take the original diameter subtract the new diameter and enter that difference as the tool comp?

Or, do I have to divide the difference by two?

I’m confused, please help.

Thanks in advance,

Andy

[Seth Emery]

Andy,

I’m not sure how your CNC works, but on our KOMO with a Fanuc control we enter the difference in the radius (not diameter). For a .500″ diameter tool that has been sharped down to .420″, we would enter -.040 in the radius compensation.

Hope this helps,
Seth

[Andy Graves]

I think that is the way mine is. I will cut a part and measure it based on the information you posted.

Thanks for the help,

Andy

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