Custom Drill Cycle? Post Help

[Paul McGarr]

Hi,

 

I don't know if I need a custom drill cycle or what, but here's what I need...

 

I need to basically drill 24 holes in a part. At the bottom of the hole I need to have two (custom) lines of code in my program before the drill retracts from the hole. The two lines of code are predetermined and always the same so I can cram those into the post somewhere without much trouble.

 

Right now I program the holes with a peck cycle and post the program with canned cycles off in the post so I get long hand code. I then edit the program and paste the two lines of code in 24 places. This is no big deal, but everytime (several times a day) the hole pattern changes, it's another edit.

 

What would you guys do to make this easier? I'm running Mastercam 9 with MPMaster for 9.

 

Thanks,

 

Paul McGarr

[Guest]

Well if it is all you use that particular drill cycle for, I would editing the post drill cycle would be OK. But if you use it for other things as well a Custom cycle is probably the way to.

 

What do you need you cycle to look like?

 

What post are you using?

[crazy^millman]

Agree custome drill cycle all the way. Here is one I did for a back spot facing.

 

 

pdrlcst		 #Custom drill cycles 8 - 19 (user option)

  #Use this postblock to customize drilling cycles 8 - 19

  pdrlcommonb

  #if drillcyc = 8, pcan1, pbld, n, *sgdrlref, *sgdrill, pdrlxy, pfzout, pcout, 

  #  prdrlout, dwell, *feed, strcantext, e

  if drillcyc = 8,

	[

	sub_prg_call = peck1

	pcan1, pbld, n, *sg00, *sgabsinc, pfxout, pfyout, strcantext, e

	pbld, n, "M98", *sub_prg_call, e

	]

  if drillcyc = 9,

	 [

	 pdrlcommonb

	 pcan1, pbld, n, pdrlxy, pfzout, pcout, *feed, strcantext, e

	 "M00", e

	 *drl_prm1, *drl_prm2, e

	 "G1", *drl_prm3 , *drl_prm4, e

	 *drl_prm5, e

	 "M00" , e 

	 *drl_prm6, e   

	 pcom_movea

	 ]   

  else, "CUSTOMIZABLE DRILL CYCLE ", pfxout, pfyout, pfzout, pfcout, e

  pcom_movea



pdrlcst_2	   #Custom drill cycles 8 - 19, additional points (user option)	 

  #Use this postblock to customize drilling cycles 8 - 19

  pdrlcommonb

  #if drillcyc = 8, pcan1, pbld, n, pdrlxy, pzout, pcout, prdrlout, dwell,

  #  feed, strcantext, e

  if drillcyc = 8,

	[

	sub_prg_call = peck1

	pcan1, pbld, n, *sg00, *sgabsinc, pfxout, pfyout, strcantext, e

	pbld, n, "M98", *sub_prg_call, e

	]

  if drillcyc = 9,

	 [

	 pdrlcommonb

	 pcan1, pbld, n, pdrlxy, pcout, *feed, strcantext, e

	 pbld, n, pfzout, e

	 "M00", e

	 *drl_prm1, *drl_prm2, e

	 "G1", *drl_prm3, *drl_prm4, e

	 *drl_prm5, e

	 "M00" , e

	 *drl_prm6, e  

	 pcom_movea

	 ]		  

  else, "CUSTOMIZABLE DRILL CYCLE ", pfxout, pfyout, pfzout, pfcout, e

  pcom_movea

Then here is where they were defined:

# --------------------------------------------------------------------------

fmt  Q  2   peck1	  #First peck increment (positive)

fmt	 2   peck2	  #Second or last peck (positive)

fmt	 2   peckclr	#Safety distance

fmt	 2   retr	   #Retract height

fmt  Q  2   shftdrl	#Fine bore tool shift

fmt  Z  2   zdrl	   #Depth of drill point

fmt  Z  2   tosz	   #Drilling top of stock

fmt  N  4   n_tap_thds #Number of threads per inch (tpi) / Pitch (mm)

fmt  F  2   pitch	   #Tap pitch (inches per thread)

fmt  R  2   refht_a	 #Reference height

fmt  R  2   refht_i	 #Reference height

fmt  S  4   drl_prm1	#Back Spot Facing Spinlde Speed

fmt  M  5   drl_prm2	#Back Spot Facing Spindle Direction

fmt  Z  2   drl_prm3	#Back Spot Facing Intinal Z depth to start Clearence postion

fmt  F  15  drl_prm4	#Back Spot Facing Feedrate

fmt  Z  2   drl_prm5	#Back Spot Facing Depth

fmt  Z  2   drl_prm6	#Back Spot Facing Retract Z place for moves between places

# --------------------------------------------------------------------------  

 

 

HTH

[Paul McGarr]

Post is MPMaster for version 9

 

Code needs to be like this (very simple)

 

G0 X0. Y0.

G0 Z0.05

G1 Z-1. F20.

M91 OUT1 ;THIS IS CUSTOM LINE ONE

M90 OUT1 ;THIS IS CUSTOM LINE TWO

G0 Z0.05

 

This example would be without pecking just for clarity, and is obviously one hole only.

 

I'll take a look at doing a custom cycle tomorrow if everybody thinks that's the way to go.

 

Ron, is your example from a MPMaster post? Something pretty close anyway? I'm not a post wizard, but I can usually get most stuff done with a little time. I'll take a look.

 

Thanks,

 

Paul

[Paul McGarr]

Guys,

 

Thanks a lot for the advice. I am all set now, and already posting good programs. If I thought it was that easy I'd have done it long ago.

 

Ron, Thanks for the code sample. That showed me right where to go. Took about ten minutes.

 

Paul

[crazy^millman]

Glad to help.

[crazy^millman]

Bump to share some custom drill cycle stuff shared over the years