RE: [CAD_CAM_EDM_DRO] MACH3TURN G77/78 CANNED CYCLES

Hi,

I implemented the G76 on the Electronic Lead Screw. Here's the
documentation from that piece of code.
/*
G76 Simulation has arguments:
Global Variable array indices
X -- X End position.
END_X_NDX
Z -- Z End position
THREAD_END_NDX
Q -- Spring Pass Count
SPRING_PASS_CNT_NDX
P -- Pitch
THREAD_SIZE_NDX
H -- First Pass cutting depth
FIRST_X_PASS_DEPTH_NDX
I -- In feed thread angle.
THREAD_ANGLE_NDX
R -- X Start
START_X_NDX
K -- Z Start position with room for synchronization
THREAD_START_NDX
L -- Thread chamfer... not used in ELS.
C -- X retracted position
RETRACTED_X_NDX
B -- Last Pass cutting depth
END_X_PASS_DEPTH_NDX
T -- Taper angle. Not used directly. System uses " per foot.
TAPER_NDX
J -- Cutting pass depth
X_PASS_DEPTH_NDX

The ELS uses the variables above which are set using menu's or
calculated from other parameters.

Note for threading, you have to know the final thread depth. This is
also dependant on the radius of the tool tip. Most often the
calculations are based on a sharp thread so if the tip is radiused then
the X start and end position may need to be different than the math
suggests.

John Dammeyer


Automation Artisans Inc.
http://www.autoartisans.com
Ph. 1 250 544 4950

> -----Original Message-----
> From: CAD_CAM_EDM_DRO@yahoogroups.com
> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Gerald
> Sent: Sunday, September 23, 2007 2:22 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] MACH3TURN G77/78 CANNED CYCLES
>
>
> Has anyone on here used the canned cycles G77/78 in MACH3TURN? If so
> can you help me out with any parameters or info that might help me
> utilze these codes?
>
> Thanks
> Gerald
>
>
>
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