@droftarts

Hey Ian,

thank you for your very detailed response. This answers quite a few questions I had in mind.

I tried using M204 recently but didn't get any noticable acceleration / braking, but only hard starts and stops. Now with your info, this obviously doesn't work because I am on a cnc-configuration, where there are no extrusions. So basically everything is a travel move.

M566 / jerk also isn't what I am looking for, since i am not looking for anything specific to segments or how it handles the transition from one move to another in specific, but rather accelerating and slowing down within a single move.

So my takeaway is, that M201 is what I am looking for.

My understanding is that with an acceleration (M201) of 1000 mm/s^2, it takes the machine 1 second to reach the full speed on a G1 F1000 move in a linear way and it will also start slowing down 1 second before reaching the end of this specific move. Is that correct?

If the move in question is too short to reach this speed at all, will it start slowing down after half the distance and smoothly come to a stop, or will it try to reach the max speed until the end of the line and then do a full stop at whatever speed it reached at this point?

I am trying to smooth out a fast back and forth motion over a 50 mm distance. I am currently running with 4000 mm/s max speed and an acceleration of 4000 mm/s^2. Obviously, it won't reach it's full speed at this short distance (it would after 4000 mm), but i fill like I should atleast notice a starting acceleration or a slow-down.

M566 X2000.00 Y2000.00 Z2000.00     
M203 X4000.00 Y4000.00 Z4000.00    
M201 X4000.00 Y4000.00 Z4000.00

@gloomyandy Ohhh. That M204 kind of sounds like what I am looking for, even though I was hoping for setting a smooth curve instead of a linear acceleration. Does this also apply to slowing down before reaching the end of a move or to adapt before a sudden speed change?

The explanation reads itself like it would only influence the start of a move.

Hello,
I am using a Duet3 Mini 5+ on a super standard CNC-like setup for a pen plotter to try out some things for a bigger project later on. Nothing fancy like a core-xy.

Everything is working perfectly well, but I was wondering if there was a way to define/tune acceleration ramps and also ramps for braking with a duet board. I would like to define how fast it accelerates on a single move and how it brakes down when reaching it‘s end. I looked all the way through the gcode dictionary and also tried a couple of things which just turned out to be the wrong commands (e.g what turned out to be the jerk setting which sounded kind of similar to what I was looking for).

Can this be done from the duet board or is this the job of the software that generates the gcode?

Thank you

Hey,
I ordered a Duet 2 Maestro, attached it to the USB, followed the guide to set up the network and web interface. I wanted to update the Firmware coming from 2.01.

I followed the guide on updating it and downloaded a combined package for v3, which the webinterface didn't seem to recognise. I then tried to just update to 2.05, using the "DuetMaestroFirmware.bin" from the last release before v3. The web interface asked me to start the update, which I confirmed.

So now, the Cr10s5 display keeps showing "Updating Firmware" since around 1 hour. I can't believe, that this is a normal amount of time for a 400kb firmware file.

At this point I am unsure. The diag-led is solid red, the web interface is not responding. Did I brick the board?

It would feel wrong to unplug it at this point.

What could I do?