Best posts made by QuintBrand

Interesting experiment; your name and having written some dutch words makes me think you work in Veldhoven ;-). I visit there regularly.

Anyways, just to add some remarks:

• I'm not sure you can "feel" 833Hz with your hands. That's typically lower frequent. I would imagine the concrete drastically changed the vibration part right?
• changing the system "that much" with the frequency remaining about the same is quite strange. It makes me believe it's something else then the frame
• with the probkem being audible, I indeed think that acoustic measures (enclosure('s)) will now help you a lot!

You could also perhaps look at Tune Mass Damper principle. Make one as and test it at different places ;-).

But overall, really nice job man! Cool and it sure was worth reading to the end ;-).

Dumb question, but why neopixel if the duet3 supports Dotstar?

I relate to your ideas and findings. I have a nimble though, so bit different situation. A nimble has trouble to keep up wit PA due to its high gear ratio (as noted on duet website). So although direct drive it has some "bowden like" behavior in PA. My findings:

• using Marlin routine I need S0.54
• using the Python script approach I need S0.6
• in real printing I find better results with S0.4

So lower than in the tests with I think relate to your observation on for the under extrusion on very short lines.

I have no need anymore for coasting in cura, and overall I have better quality. I hope and think you do too right? It's about improving it even more.

So I think your idea on the minimum amount of time could work well. I'm wondering if it should be time or travel length though? That would take out the need to tune each time when you print with different speeds for different prints, or even when using different speeds while printing different features.

I think having both options would be best to tinker with.

Also I would think it would be even nicer if one can give two parameters:

• length/time No PA
• length/time Full PA.

And an interpolation in between to give a sliding PA value?

No idea how hard to implement, but I bet it would be a selling point when this works well (I'd be happy to test when indeed working well.

While think about it: anybody know how to modify a gcode file to search for short line length and putting an M572 in front (and after) to change the settings with some existing scripts or something to prototype test?

Cheers Q