subtraction

[tsaladyga]

Can someone show me how to make a pfzout line in a post subtract a misc value?

Here is the line I want to modify:

 

pbld, pn, *scclgcode, pfxout, pfzout, *stepcc, *grvspcc, *clearcc, *mr4$, feed, *mr5$, pe

 

Basically I am programming a grooving cycle with back offsets in an Okuma VTM, but the shop wants to see the back groove number as what is on the print.

Soooo,

This is what I need.

If it is a .500 groove at z-1., then they want to see,

 

G00 Z-1.

G73 X5.00 Z-.5 K.250 D.3 L.6 E4 F.003 T94

 

In order to output the code,

I want to have the pfzout show " pfzout minus misc. real value 9(I will enter the width of the insert there)

Any takers?

Thanks,

Todd

[Peter - Avivi CNC Solutions]

Just guessin' here, but try this before your line:

 

z$ = z$ - mr9$
pbld, pn, *scclgcode, pfxout, pfzout, *stepcc, *grvspcc, *clearcc, *mr4$, feed, *mr5$, pe

 

Take care, it will affect every similar line like this. Will change every Z value until mr9$ becomes 0

[tsaladyga]

Thanks Peter,

I tried it but no go.

[EX-wccprogrammer]

Create a variable to hold the Z value that you want. (Maybe GrooveZdepth) Then prior to the output line in your post, put this:

 

GrooveZdepth = zabs - mr9$

 

Then replace pfzout in your postline with GrooveZdepth.

 

It is generally unwise to manipulate the standard variables for custom output. It is much better to create a holding variable and leave the system variables alone.