CAM: spindle always on?
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Always indicate your operating system and QCAD version.
Attach drawing files and screenshots.
Post one question per topic.
CAM: spindle always on?
In CAM version, Is there a way to prevent spindle to wind down between countours?
Last edited by darkg on Fri Mar 06, 2020 11:46 pm, edited 1 time in total.
Re: CAM: spindle always on?
Please indicate which post-processor you are using, how the G-Code looks like and how it should look like. It's likely a small adjustment to achieve that. In fact, most post-processors don't stop the spindle between contours.
Re: CAM: spindle always on?
Thank you!
The postprocessor in this case is "G-Code (G41/G42)".
I believe this is a transition between two contours:
And well, it seems to be nothing wrong here :-/
Is it, then, the GRBL controller (Candle) or the machine's board that is behaving this way, do you think?
The postprocessor in this case is "G-Code (G41/G42)".
I believe this is a transition between two contours:
Code: Select all
...
N3290 G2 X11.9744 Y14.2257 I-0.9897 J-0.331
N3300 G2 X12 Y14 I-0.984 J-0.2257
N3310 G1 Z2
N3320 G0 X14 Y12
N3330 G1 Z-0.1 F200
N3340 G2 X14.2257 Y11.9744 I0 J-1.0096 F400
N3350 G2 X14.3272 Y11.9461 I-0.2295 J-1.018
...
Is it, then, the GRBL controller (Candle) or the machine's board that is behaving this way, do you think?
Re: CAM: spindle always on?
Indeed not common practice.
Indeed
-> N3300 path
Normal up to 2
G0 travers 14,12
Plunge down F200
N3340 >> new path F400
We would expect a M5 as we can rule out M0,M1,M2 & other stops.
M3, M4 are also candidates, a suplemental M6 can trigger this too.
Normally if there is no Gcode for it, nor the controller, nor the machine's board will execute anything...
I think it is bets to test it with some simple aircut gcode lines untill you find what the cause might be.
Sidenote:
Plunge down F200
I hope this is not for metal.
Most mills aren't made for plunging. Drills are.
Happy hunting
Regards,
Re: CAM: spindle always on?
Testing it with aircut gcodes can take pretty long, right?
Re: CAM: spindle always on?
Why? Just fool the Z zero so it cuts in air.
CVH
Last edited by CVH on Sat Mar 07, 2020 9:35 pm, edited 1 time in total.
Re: CAM: spindle always on?
And you plunge 0.1mm?
In the end this approach will kill your cutter sooner.
Advice: in metal laminate plunge through the metalsheet.
So the engraving cutter cuts the metal sideways.
As an engraver I know that that the cut-in is better done by a ramp then straight down.
In many CAM's you don't have that option.
In high end engravers this is build in.
A gap I can not bridge up to now.
We have to do it with what we got.
Regards,
CVH
Re: CAM: spindle always on?
I have not (yet) made friends with the lead in feature of QCAD. I appreciate the advice though.