5X post_clamp unclamp question

[gcode]

punclamp #Unclamp the rotary axis

if use_clamp & not(opcode$ = three | cuttype <> zero),

[

if p_inc, p_lock = zero

if s_inc, s_lock = zero

pbld, n$, s_slock, e$

pbld, n$, s_plock, e$

]

 

pclamp #Clamp the rotary axis

if use_clamp & not(opcode$ = three | cuttype <> zero),

[

if p_inc, p_lock = one

if s_inc, s_lock = one

pbld, n$, s_slock, e$

pbld, n$, s_plock, e$

]

This stock unmodified code from the gen5X post

It is the logic that decides when to clamp

and unclamp the rotary axis.

It works correctly for 3+2 positional moves

(unclamps, rotates and clamps), but for full rotary toolpaths (5X swarf and 5x curve) it's not right.

It should be unclamping and staying unclamped.

It doesn't do anything.

Can anyone give me a hand with this

[Colin Gilchrist]

I think opcode$ = 17 is the op code for full rotary 5 axis toolpaths.

 

Do a search for clamp or unclamp. I think Paul Decelles helped Dave (from AU) configure his a while back. I was also chiming in on that thread, but Paul schooled me on how to do it correctly.

 

I think you need to include another "Or" condition somewhere

 

not(opcode$ = three | cuttype <> zero | opcode$ = 17),

 

Something like that...

[MIL-TFP-41]

For Unclamp I use this

code:

---

      if use_clamp & cuttype <> zero,

[

p_lock = zero

s_lock = zero

pbld, n$, s_slock, e$

pbld, n$, s_plock, e$

]

---

For clamping I use this

code:

---

      if use_clamp & not(cuttype <> zero),

[

p_lock = one

s_lock = one

pbld, n$, s_slock, e$

pbld, n$, s_plock, e$

]

---

These calls are in several sections of the post, ie this whole block, not just "pclamp" or "punclamp"

 

Its a good idea to put them in your null toolchange area also...in case you go from 3+2 mode to full 5 axis without a toolchange.