OSP2200 Post Problem

[Mick]

I've got a V8 post that works well for an old Okuma OSP2200 control. The only problem I need to fix, is when threading, and I select a thread from the table (example, an M24 thread), the post outputs the start position of the thread, (ie X24) and doesn't add the X clearnance. I want to be able to add the clearance value to the major diameter, but can't find the value. I thought it was thdxclr, and so put in the equation:

(thdx1dia is the major diameter of the thread)

 

thdx1dia = thdx1dia + thdxclr

 

but this just returns the major thread diameter.

Does anyone have any idea?

 

Thanks,

 

Mick

[Mick]

Just to add...the reason I want to use this old post, is that the lap cycle formats etc work perfectly, and I dont want to have to reformat a more current post.

[Roger Martin from CNC Software]

The value for "thdxclr" is from the Stock Clearance field on the Thread Cut Parameters page.

So the question is - What value is in the "thdxclr" variable when you add it to "thdx1dia" ?

If that looks good, make sure the "thdx1dia" is not getting re-calcuated else where in the PST.

You can determine this by adding some temporary diagnostics into your post.

 

Output the vaue of "thdxclr" just prior to your formula and check the value of "thdx1dia" immeadiately after the formula line ->

 

"THRDXCLR = ", ~thdxclr, e # temp. postline

thdx1dia = thdx1dia + thdxclr

"THDX1DIA = ", ~thdx1dia, e # temp. postline

 

Does the value if "thdx1dia" change from this point to when it is actually oputput for the threading cycle ?

[Mick]

Roger,

 

Thanks for the prompt reply. I checked the output output of thdxclr, by inserting a line prior to the threading line with n, *thdxclr, "(THDXCLR CHECK)", e

 

However when posted, the line looked like this:

 

N23 thdxclr 2000(THDXCLR VALUE)

 

which indicates that the post is getting the correct value, which is 2mm. Its weird though, because should it be actually outputting the text thdxclr as well?

 

Mick

[Mick]

I seem to have sorted it. I found a calculation further back in the post, which had

 

thdx1dia = dia * thdx1

 

I changed this to thdx1dia = (dia * thdx1) + thdxclr

 

And it works fine

 

Regards,

 

Mick

[Roger Martin from CNC Software]

quote:

---

Its weird though, because should it be actually outputting the text thdxclr as well?

---

Yes...

If you output the value of a variable that does NOT have a "fmt" format assignment, the variable name is output just prior to the value held in that variable.