Haas post, M9 issues

[DaveR]

I am using a new VF-2, and X2. The coolant comes on at the right time at spindle start but it turns off as the z axis hits home at tool change splashing my tapers. How do I change the timing in the post so it turns off at retract from the part for tool change?

 

(I'm a post mod rookie)

 

Thanks for any assistance.

 

Dave

[Colin Gilchrist]

Hi Dave,

 

You can make the modification in the pretract post block. Add the following line before the home position retract move:

 

pbld, n$, scoolant, e$

 

code:

---

 

pretract #End of tool path, toolchange

sav_absinc = absinc$

absinc$ = one

sav_coolant = coolant$

coolant$ = zero

 

# if nextop$ = 1003, #Uncomment this line to leave coolant on until eof unless

[ # explicitely turned off through a canned text edit

if all_cool_off,

[

#all coolant off with a single off code here

if coolant_on, pbld, n$, *sall_cool_off, e$

coolant_on = zero

]

else,

[

local_int = zero

coolantx = zero

while local_int < 20,

[

coolantx = and(2^local_int, coolant_on)

local_int = local_int + one

if coolantx > zero,

[

coolantx = local_int

pbld, n$, scoolantx, e$

]

coolantx = zero

]

coolant_on = zero

]

]

#cc_pos is reset in the toolchange here

cc_pos$ = zero

gcode$ = zero

pbld, n$, sccomp, *sm05, psub_end_mny, e$

pbld, n$, scoolant, e$ <---------------ADD THIS LINE OF CODE TO THE (pretract) POST BLOCK

pbld, n$, sgabsinc, sgcode, *sg28ref, "Z0.", scoolant, e$ <-----------YOU CAN DELETE THE [ ,scoolant ] HERE IF YOU WANT AS WELL

if nextop$ = 1003 | tlchg_home, pbld, n$, *sg28ref, "X0.", "Y0.", protretinc, e$

else, pbld, n$, protretinc, e$

absinc$ = sav_absinc

coolant$ = sav_coolant

---

[DaveR]

Colin thanks so much. I don't think I would have ever figured that one out.

 

Dave