Incremental R Value?

[Randy Morton @ Clem Industrial]

Hey all,

 

I am running (well, not me...) a Doosan Puma 400LM with a Fanuc 21iTB control.

 

When we are using the live tooling to drill holes (BHC's ect) the R on the drill cycles line is an incremental move to the start point.

 

So this:

 

X0. Z1. M8

G98 G83 Z-3.51 R-3.0617 F6.

 

Would result in the drill starting at Z-2.0617 and then drilling to Z-3.51.

 

This is really annoying and is really stupid to have it this way. Wondering if anyone knows how to make the R absolute like every other machine.

[Hannon]

G90?

[Randy Morton @ Clem Industrial]

Darn it, I thot I mentioned that it was a lathe, but I see I didnt....

 

BTW: This is for a lathe

 

We are on Fanuc Code System A on this machine (per most lathes). There is no G90/91. This is done so that said lathe(s) can use U & W.

[Guest SAIPEM]

Can't change it.

It's part of the PMC written by Doosan.

 

What you can do is write a Macro for a Custom G-Code that will give you what you want.

 

Here's one you can modify to suit your needs.

Peck Drilling Macro

[G10X0Y0Z0]

this R incremental is in Daewoo's pmc for all their canned cycles

[Randy Morton @ Clem Industrial]

Thanks Saipem. Doosan fails at life, that is all I have to say for this rediculous usage of code.

 

Thanks for all the responses.