[RCraig2]

I have been trying to change my Tool length wear in a program from side A then Different on side B and nothing is working. Right now i am using 2 different H #s to make it work but would like to do something different. Here is what i have tried so far with no luck
#101=15 ( 15= Tool Number
G43H[#101-.005]
Also tried
#101=15-.005
G43H#101
and my last try was
G10L11P15R-.005
This worked Great on side A but when it rotated and went to side B and i changed the R to R.002 alarmed the machine out.
thanks for anyones help on this

[John_B]

I have always done that a bit different....

#100=15
#101=.005
#102=#100-#101

G43H#102

It's worked for me on older non "i" Fanuc controls, as well as an 18i machine.

[angelw]

I have always done that a bit different....

#100=15
#101=.005
#102=#100-#101

G43H#102

It's worked for me on older non "i" Fanuc controls, as well as an 18i machine.

Hello John,
With all due respect, there is no way known that will work with a Fanuc control. The "H" address used with G43 refers to the number of the Offset in the Offset registry. Your above code is not altering the value of the Offset, its altering the the number of the Offset to call.

Your following code:

#100=15
#101=.005
#102=#100-#101

G43H#102

is the same as writing

G43 H14.995

Your code will not result a reduction in the value of an existing Offset, but extrapolating a different Offset Number that doesn't exist. What will work is as follows:

#101 = 15
#[2200 + #101] = #[2200 + #101] - 0.005
G43 H#101


Regards,

Bill

[John_B]

Bill,

Right you are! Good catch, I'm on and off planes all day today and typed out a response without putting enough thought into it.

I don't think yours is quite on though.

[angelw]

Bill,

Right you are! Good catch, I'm on and off planes all day today and typed out a response without putting enough thought into it.

I don't think yours is quite on though.

Hello John,
You haven't put enough thought into it again. The only thing that may vary is the System Variable being used, as its dependent on the Offset System being used. However, based on the OP's G10 example and the magnitude of the alteration being made, I'd say his control has Geometry and Wear Offsets. If you study the comments below, you will see that indeed my example is correct.

#101 = 15
Set Variable #101 to 15

#[2200 + #101] = #[2200 + #101] - 0.005
#[2200 +#101] is the same as #[2200 + 15], which is the same as #[2215] which is the same as #2215
#2215 is the System Variable for Geometry Offset number 15 of Offset System B and C. Accordingly, the above example is allocating the value of Offset Number 15, less 0.005 to Offset Number 15. If the OP wanted to alter the Wear Offset, then 2000 would be substituted for 2200 in the above example.

G43 H#101
The new value of Offset Number 15 is applied.

Regards,

Bill