I’ve spent a lot of time recently trying to improve the speed and quality of my vcore core xy printer recently and much of that time has been spent measuring and improving resonance. To keep things short, I found that using an accelerometer, whether on the print head, nozzle, frame or bed, did not g…

To illustrate, here is the output for my new test: [my_resonancestest_nozzle_alu]

And this is what I get running klipper’s current test on the y axis: [test_resonances_y_nozzle_alu]

On the ringing test print, I get ringing at exactly 50 Hz on the y axis starting around 8000mm^3/s. This is on a 400mm corexy. The x axis ringing is fairly minor but results of the two different tests do not match for that axis either. I’ve found that using the frequency sweep test method for the x …

That’s a brilliant idea, i’ve tried already. Thank you! IMHO, interesting part is to “print” (with no extrusion) the real Ring tower from klipper examples, and then do several tests with shapers “virtually” before printing, and it works! Raw data from 30 layers 100 mm/s 20kA [adxl345-per-axis_2…

X MZV 47.5 Y MZV 61.5 [adxl345-per-axis_20221011_233351] I just add 1 shaper per test and check different shapers, so it is just example of result

New resonance testing method

Features

nefelim4ag October 12, 2022, 12:14am 6

X MZV 47.5
Y MZV 61.5

I just add 1 shaper per test and check different shapers, so it is just example of result

Topic		Replies	Views
A bit different resonance test Developers	14	3639	November 12, 2024
Extraneous behaviour (measurement of resonances) General Discussion	3	75	December 24, 2024
Input Shaper without effect?! General Discussion	24	5224	October 28, 2024
Resonance calibration when the printer frame is not a static reference General Discussion	10	224	January 3, 2025
Raw data from 2 usb accelerometers (bed movement compensation) General Discussion	13	361	December 26, 2024

New resonance testing method

Related topics