LinuxCNC Support Forum :: Topic: Lathe OD Turning (2/8)

Rick G OFFLINE Moderator Posts: 1087 Thank you received: 17 Karma: 80	Hello John, Has the file www.linuxcnc.org/<br%20/><br%20/>www.linuxcnc.org/media/kunena/attachment...3ae267fd15d6a555.txt been moved or renamed? Rick G
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Re:OD Turning Subroutine 05 Ott 2010 05:16 #4523

hpopols OFFLINE Fresh Boarder Posts: 6 Karma: 0	Hello Rich, Your address is bad (<br%20/>?!), you are looking for : http://www.linuxcnc.org/media/kunena/attachments/legacy/files/od-0d422ace7e9c80e43ae267fd15d6a555.txt ? Xavier
	Last Edit: 05 Ott 2010 05:17 by hpopols. The administrator has disabled public write access.

Re:OD Turning Subroutine 05 Ott 2010 05:22 #4524

BigJohnT OFFLINE Administrator Posts: 5080 Thank you received: 102 Karma: 136	Hi Rick, It seems to have vaporized into electron dust. I'll have to upload it again... my network is off atm so it will be a bit later today before I can upload it again. John
	Last Edit: 05 Ott 2010 05:24 by BigJohnT. The administrator has disabled public write access.

Re:OD Turning Subroutine 05 Ott 2010 13:10 #4527

BigJohnT OFFLINE Administrator Posts: 5080 Thank you received: 102 Karma: 136	Rick, here it is again. John This attachment is hidden for guests. Please log in or register to see it. Attachments: This attachment is hidden for guests. Please log in or register to see it.
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Re:OD Turning Subroutine 06 Ott 2010 03:07 #4532

Rick G OFFLINE Moderator Posts: 1087 Thank you received: 17 Karma: 80	Thanks John, hope to try this weekend. Rick
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Re:OD Turning Subroutine 12 Dic 2010 04:26 #5980

Rick G
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Posts: 1087
Thank you received: 17
Karma: 80

Hello John,

Thanks for posting your subs. I was using your od sub the other day and I wondered if it could be modified to use existing part files. Perhaps to run the same part from different stock sizes.

The below assumes a G92 to set work piece.
I made the part file testrun.ngc a sub by adding the 0<testrun> sub and o<testrun> endsub to it.

Below is untested, and a possible starting point, what do you think?

; 100717:10.32 john thornton
; adapt for ngcgui format by:
; 1. making a subroutine with positional parms
; 2. shorten some names for visibility in gui

;; modify to use existing part file
;; final diameter is smallest diameter of smallest section of part

o<od4> sub
#<Material_Dia> = #1 (=2.000 Material Diameter)
#<Final_Dia> = #2 (=1.500 Final Diameter)
#<Depth_Cut> = #3 (=0.010 Depth of Cut)
#<Final_Cut> = #4 (=0.000 Final Cut)
#<SurfaceSpeed> = #5 (=100 Surface Speed)
#<FeedRate> = #6 (=2 Feed Rate)
#<Max_RPM> = #7 (=1500 Max Spindle RPM)
#<Z_EndOfCut> = #8 (=-0.5 End of Cut)
#<Z_StartOfCut> = #9 (=0.100 Start of Cut)
#<RToolNumber> = #10 (=3 Roughing Tool)
#<FToolNumber> = #11 (=3 Finishing Tool)
#<Coolant> = #12 (=8 Flood=8, Off=9)
;;
#<Cut-Depth> = #13 (=1.000 Deepest Cut)
#<Mat_plus> = #14 (=3.000 Material Plus)

T#<RToolNumber> M6
G43 G7 G96 D#<Max_RPM> S#<SurfaceSpeed>
;G7
F#6
M3 M#<Coolant>

;; add depth of deepest cut to Material diam
#14=[#13+#<Material_Dia>]
G0 X#14 Z#<Z_StartOfCut>

o100 while [#14 gt #<Material_Dia>]

O101 if [[#14-#<Depth_Cut>] gt #<Final_Dia>]
#14=[#14-#<Depth_Cut>]
O101 else
#14=#<Material_Dia>
O101 endif

;;reset cord system
G10 L2P1 X#14
;; go to sub program

o<testrun> call

G0 X#14
G0 Z#<Z_StartOfCut>

o100 endwhile

M5 M9
G0 Z#<Z_StartOfCut>
G49

o<od4> endsub

The testrun program could be ....

o<testrun> sub
G0 X2.00
G0 Z0.00
G1 X1.5
G1 Z-.5
G1 X1.75
G1 Z-.75
G1 X2.00 Z-1.25

o<testrun> endsub

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