change Z to W on HBM

[Mgrenier]

Hello,

 

I have a functionnal  post for a 4 axis HBM with a quill.  The output is always for the Z axis.  I have been asked if I could modify the post to output either Z axis or W axis moves depending on the value of a misc value.

 

I know I have to change the format statement from "Z" to "W", but my question is how to have these format statements recognize de misc value.  At this point, from my understanding, the post has not read the misc values when it reads the fmt lines and I can not format the variables once the toolpath is started to be written.

 

Could somebody please explain to me what I have to do to make this work?

 

Thanks in advance,

[bd41612]

First of all, with out seeing your post, you may need the following 2 lines:

if mi1$ = 0, absinc$ = zero

else, absinc$ = one

 

Or it could be even easier, change the format address for zinc:

 

fmt  "X" 2  xabs        #X position output
fmt  "Y" 2  yabs        #Y position output
fmt  "Z" 2  zabs        #Z position output
fmt  "X" 3  xinc        #X position output
fmt  "Y" 3  yinc        #Y position output
fmt  "W" 3  zinc        #Z position output

[Mgrenier]

Thanks bd41612,

 

but I do not think this is what I am looking for.  I want the post to output Z moves if mi1$ = 0 and output W moves if mi1$ = 1.

I need to read the format statement after the misc value for each operation is read.  I am really lost as to what I need to do to have it work.

[bd41612]

Are you saying that you only want the Z axis to output in "incremental"?

[crazy^millman]

Need to get your head around the force process. There is logic already done in most posts to force a format so one time. Could use the same logic for this situation. Not at my computer to give an example, but look in the 4th Axis Logic there is some code in there that forces this.

[Mgrenier]

No,

 

I misused mi1$ in my example.  could have been mi2$, mi3$, whatever number you want.  This machine can machine both with the Z axis and the W axis.  Depending on the application, we need to machine with both the Z and W axis.

[bd41612]

I get it, one is for the column and one is for the quill, right?  So what you are really after is using Z to a point and then using W to advance the quill fro m there.  If this is true it would not be that hard.

[Mgrenier]

No, this is not what I need.  On this particular machine, the Z axis is the quill and the W axis is an enveloppe around the quill and it is much stronger.  So we can machine everything with the Z axis or the W axis, even canned cycle.  If we machine with Z, W is a positionning axis.  If we machine with W, Z is a positionning axis.

 

I found the newfs command but it does not allow me the change the letter assigned to a variable, only the format statement.  This is really close to what I am looking for but not quite.

[Mgrenier]

Hello,

 

I think I am getting close, I found the newfs command that allows to change the format statement but not the letter assigned to a variable.  Does such a command exist?

 

Regards,

[bd41612]

How about this:

 

pzout           #Z output
      if zabs < -10 & mi2$ = 1, wabs = zabs + 10, zabs = -10
      if absinc$ = zero, zabs, [if wabs < 0, wabs], !zinc
      else, zinc, !zabs

 

Using some logic like this your could get one block of code to look like X2. Y1.5 Z-10. W-2.3

The next trick could be to use the misc reals to put in a value that you want one axis to move and let the post decide on the remainder of the move for the other axis.

 

HTH

[ajmer]

try this

result = nwadrs(srad, arcrad$)

define srad as the letter you want and it will change arcrad$ to that letter

[Mgrenier]

Thanks ajmer,

 

Did some testing and that is exactly what I wanted.

 

Have a nice day,

[crazy^millman]

try this

result = nwadrs(srad, arcrad$)

define srad as the letter you want and it will change arcrad$ to that letter

 

 

That was what I was thinking.

 

Thanks Ajmer.