Hi

I am using an Okuma Multus U3000 with OSP-P300S-H ( 2018 year) and I was trying to understand how to program the milling cutter compensation. (G41/G42)

I use a CAM and I always program the centerline of the tools , so start value is zero.

When the tool is resharpened , so, for a 10 mm milling tool the diameter is less than 10 mm (let's say for example 9,8 mm) , the R value set is positive. And no problem in such scenario.

It can happen we need the final measure of the worked piece should be bigger than what is programmed, so , in this case , the R value should be negative.

But it looks like, when setting a value on the R tab, it accepts the positive values only, not negative.
In this case I have to switch G41 with G42 and viceversa in order to have the work done

Is there anyone who knows how to make the OSP accept negative values in the R setting?

Thank You