I recently upgraded to a Shapeoko 5 Pro with a VFD, and this is my first time working with a VFD setup. I’m wondering if there’s a way to adjust the spindle RPM dynamically while the machine is running to help fine-tune my feeds and speeds. With my old Carbide router, I could manually tweak the speed on the fly, and that flexibility was a really useful feature.
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I can’t think of any methods to do this within carbide motion. You might be able to use the mdi to issue M3SXXXX commands but I’m not sure.
You might have to go to a different gcode sender like gSender or something to get that support in a UI 
(Your GPT is showing 
)
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Lol good catch there. Thanks for the response
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They do, but nothing you care about. In general you don’t want to go poking at the VDF unless you really know what you’re doing.
I’m not sure if the VFDs settings are locked these days but they definitely used to be so you wouldn’t be able to do much with it anyway.
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Does gsender allow you to control spindle speed using the C3D controller and 65 mm VFD ?
I was meaning to ask that question awhile ago ( air pocket ).
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Seems like yes 
Thanks, but that looks like M code macros which is used between nc files.
I was thinking dynamically as the nc file is already running.
Universal G Code Sender will allow overrides during a cutting session.
You need to use a different g code sender that would allow this.
Vfds have to have several things changed on them to switch between g code controlled via 0-5pwm signal and manual control via a knob. It’s a couple settings, a jumper and a wire that need to be changed from my experience.
From what I’ve read carbide locks their vfds down with a password so you couldn’t change it if you want to. I understand why they do this because you can easily let the magic smoke out of the vfd with a setting change.
I wish this were an ability as I’m used to being able to change my spindle speeds and feeds on the fly with my machines at work. Obviously I know in CM you can adjust feeds on the fly which I use all the time but spindle speed would be a huge help if there were a way.
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