I bought a large format OX from SMW3D  with the Quiet Cut spindle they

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I bought a large format OX from @SMW3D with the Quiet Cut spindle they sell, and I’m running the TinyG v8 board. When I issue an M03 S15000, the spindle jumps to (what I assume) is 15000 RPMs. But, when I issue an M03 S0 command, it slows down, but does not come to a complete stop. Is there some setting in TinyG that I need to toggle?

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Try M05

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$p1csl=0 is the setting for 0 rpm as your lower limit but m05 is the gcode to turn off spindle

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Nevermind, I found these settings in my notes:

$p1frq=5000
$p1csl=0
$p1csh=10000
$p1cpl=0
$p1cph=1
$p1pof=0

Also, it looks like its max speed is only 10,000 RPMs?

And if I issue an M03 S10000 command, it budges slightly then nothing. Weird.

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Other weirdness. M03 S9966 is the fastest. M03 S9967 or higher does nothing.

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Give this a read, https://www.dropbox.com/s/6co45i4i0woordy/Spindle%20Test%201.doc?dl=0

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@Alex_Krause BTW, yes, M05 works, and now so does M03 S0. Thx.

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Try $p1frq=3000 , $p1cph=.085 and $p1cl=.125 I had to play with those 3 settings to get my spindle to respond at upper and lower limits correctly

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@Alex_Krause When you wrote $p1cl=.125, did you mean $p1cpl=.125?

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Yah my bad

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@Alex_Krause No worries–your settings let me get it running at 10,000 RPMs, thanks! Not sure what the correct max for this spindle is. (I thought it was 15,000, but I don’t know why I thought that, and that is clearly not correct).

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@SirGeekALot ​ is it the 300w or 400w quiet cut spindle?

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@Alex_Krause It is the 400 watt version. Looking at SMW3D’s page for it (assuming it is still the same as when I bought it), the max speed appears to be 12,000 RPM:

Specs:
ER-11 collet
.01 - .03mm run out
300W or 400W (based on selection)
Operating RPM 0-12000 (as advertised by the manufacturer)
Operating voltage 0-48VDC
http://www.smw3d.com/quiet-cut-spindle/

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@SirGeekALot ​ the other settings I gave you should work to get you to 12000 rpm if you change your rpm max… Those settings work for my 400w spindle

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Awesome, was about to respond and found everyone else had solved the problem.

I noted the other day when using CamBam that it issues M03 Sxxx (whatever I set in the job) at the beginning and M05 at the end of the code automatically. Pretty neat to just kick a job off and not worry about setting the speed manually. @cmcgrath5035 guide is what I use myself. Thank you for making this up for folks.