Accelerometer doesn't work
Copying a long message sent to Prusa Support that basically got dropped. (Suggested that I upgrade to the same firmware that I'm already running. Then no further response.)
Any ideas why the printer is throwing "Measurement Failed"?
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I recently upgraded my MK4 to a MK4S and added the accelerometer to the order.
It's now upgraded and I'm trying to calibrate using the accelerometer and that's not working.
I run the calibration, first trying the X axis. The printer ramps through the frequency range, vibrating as expected. After it gets to the end of the frequency range, I see "Measurement failed" on the display. No indication of why it's failing.
If I try the calibration by manually sending gcode ("M959 X F35.0 G70.0 N30 H1") I seem to get a valid response. See the capture below.
What's the next step here? I can do this manually (set the step smaller and probe around the resonance), but I'd like to use the menu to do the measurements.
Thanks,
Send: M959 X F35.0 G70.0 N30 H1
Recv: Sample freq: 1299.38
Recv: frequency[Hz] excitation[m/s^2] X[m/s^2] Y[m/s^2] Z[m/s^2] X_gain Y_gain Z_gain
Recv: 35.00 2.51 2.30851 0.21871 0.05778 0.92019 0.08718 0.02303
Recv: 36.00 2.53 2.35284 0.63358 0.19260 0.93137 0.25080 0.07624
Recv: 37.00 2.53 2.12672 1.03154 0.26661 0.83947 0.40718 0.10524
Recv: 38.00 2.53 1.80560 0.42627 0.08098 0.71377 0.16851 0.03201
Recv: 39.00 2.51 1.86599 0.16977 0.05962 0.74211 0.06752 0.02371
Recv: 40.00 2.53 2.19526 0.28267 0.14133 0.86885 0.11188 0.05593
Recv: 41.00 2.53 2.89112 0.56597 0.18463 1.14269 0.22369 0.07297
Recv: 42.00 2.52 3.11459 0.49677 0.24602 1.23377 0.19679 0.09746
Recv: 43.00 2.51 3.32254 0.54764 0.34713 1.32413 0.21825 0.13834
Recv: 44.00 2.53 3.21983 0.53270 0.38681 1.27178 0.21041 0.15278
Recv: 45.00 2.55 3.06031 0.69797 0.44573 1.20096 0.27391 0.17492
Recv: 46.00 2.51 2.59704 0.85535 0.43476 1.03629 0.34131 0.17348
Recv: 47.00 2.51 2.34732 1.06981 0.48302 0.93622 0.42669 0.19265
Recv: 48.00 2.50 2.16499 1.33345 0.49917 0.86553 0.53309 0.19956
Recv: 49.00 2.55 1.89406 1.49735 0.40171 0.74352 0.58779 0.15769
Recv: 50.00 2.53 1.80278 1.67659 0.37242 0.71282 0.66292 0.14725
Recv: 51.00 2.50 1.66055 1.83868 0.32629 0.66345 0.73462 0.13036
Recv: 52.00 2.54 1.61708 2.06612 0.31590 0.63782 0.81494 0.12460
Recv: 53.00 2.56 1.56457 2.06542 0.31136 0.61010 0.80541 0.12141
Recv: 54.00 2.52 1.48187 1.72332 0.33811 0.58846 0.68434 0.13426
Recv: 55.00 2.54 1.25963 1.11877 0.39322 0.49636 0.44085 0.15495
Recv: 56.00 2.55 1.05100 0.43404 0.44530 0.41160 0.16998 0.17439
Recv: 57.00 2.57 0.99420 0.25643 0.54740 0.38755 0.09996 0.21339
Recv: 58.00 2.57 1.05863 0.34340 0.51826 0.41142 0.13346 0.20141
Recv: 59.00 2.58 1.03903 0.37533 0.44749 0.40324 0.14566 0.17367
Recv: 60.00 2.58 1.00680 0.45429 0.32193 0.39084 0.17636 0.12497
Recv: 61.00 2.57 1.00637 0.52541 0.17431 0.39147 0.20438 0.06780
Recv: 62.00 2.56 0.91092 0.37915 0.08742 0.35571 0.14805 0.03414
Recv: 63.00 2.55 0.80354 0.26484 0.03462 0.31558 0.10401 0.01360
Recv: 64.00 2.53 0.69897 0.17599 0.02981 0.27664 0.06966 0.01180
Recv: 65.00 2.50 0.59571 0.13645 0.02633 0.23810 0.05454 0.01052
Recv: 66.00 2.58 0.55336 0.14747 0.01708 0.21452 0.05717 0.00662
Recv: 67.00 2.55 0.43774 0.14377 0.02716 0.17183 0.05643 0.01066
Recv: 68.00 2.51 0.28162 0.10116 0.01038 0.11220 0.04030 0.00413
Recv: 69.00 2.58 0.20695 0.10454 0.02763 0.08008 0.04045 0.01069
Recv: 70.00 2.54 0.13897 0.08353 0.03637 0.05474 0.03290 0.01433
Recv: Maximum resonant gain: 1.32 at frequency: 43.00
Recv: ZV shaper selected Recv: Frequency: 43.00 damping ratio: 0.51203 [...]
Recv: ok