G81 Spindle Reversal Between Each Hole
- andypugh
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17 Sep 2025 18:39 #335138
by andypugh
See section 2.6 here: linuxcnc.org/docs/stable/html/remap/rema...xample_remapped_code
Your ngc file would probably just contain the usual G83 but wrapped with a spindle reversal, and passing-through the XYZRQ etc parameters.
Replied by andypugh on topic G81 Spindle Reversal Between Each Hole
The simplest case of remapping is fairly straightforward. It starts off looking a lot like a subroutine in its own file (which is also a possibility)Remapping is way way over my head and messing around with it can crash my machine
See section 2.6 here: linuxcnc.org/docs/stable/html/remap/rema...xample_remapped_code
Your ngc file would probably just contain the usual G83 but wrapped with a spindle reversal, and passing-through the XYZRQ etc parameters.
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- MaHa
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17 Sep 2025 19:18 #335140
by MaHa
Replied by MaHa on topic G81 Spindle Reversal Between Each Hole
When we had a similar problem with stringy chips, drilling holes with carbide drill with trough coolant in CrMo4, a modified G83 cycle solved that. Only retracting by 0.2mm after 2mm. Continue this 2.2mm / retract 0.2mm steps until
final depth, we made all the 120 holes without interruption and big loss of time. I think feed was about 0.12/rev
final depth, we made all the 120 holes without interruption and big loss of time. I think feed was about 0.12/rev
The following user(s) said Thank You: tommylight, Darium
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