Pounding my head against the wall trying to speed up some prints.

I find that the filament senor is triggering during a lot of successive short and fast movements. (Too little movement).
I can slow the print down by 20% and usually get by with the filament monitor not exceeding the set boundary

M591 D0 P3 C"e0_stop" S1 L25.62 R50:120 A1

Usually occurring during infill or small parts with a decent amount of retractions.

M591 D0
Duet3D magnetic filament monitor v4 on pin e0stop, enabled when SD printing, 25.62mm/rev, allow 50% to 120%, check all extruding moves every 3.0mm, mag 129 agc 56, measured 25.58mm/rev, min 95% max 104% over 3955.1mm

I don't believe the monitor is the issue here but rather catching an issue which I can't explain.

I don't hear any audible noises that would indicate the extruder skipping. During these events the threshold drops considerably which to me indicates an issue.

M591 D0
Duet3D magnetic filament monitor v4 on pin e0stop, enabled when SD printing, 25.51mm/rev, allow 50% to 120%, check all extruding moves every 3.0mm, mag 130 agc 56, measured 25.52mm/rev, min 45% max 105% over 4289.0mm

within ~300mm we see a tolerance of +-5% and it jumps to over 50% error. With this drastic of an error it makes me believe there is an issue that I can't put my finger on and I don't believe it's the sensor itself. I would like to run my prints a little faster. Any help would be appreciated.

Config below.

; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2.1.8 on Fri Jan 17 2020 15:59:54 GMT-0700 (Mountain Standard Time)

; General preferences
G90                                                                         ; send absolute coordinates...
M83                                                                         ; ...but relative extruder moves
M550 P"Predator"                                                            ; set printer name
M665 L425.400:425.420:425.405 R223.741 H431.495 B186.0 X0.110 Y0.113 Z0.000 ; Set delta radius, diagonal rod length, printable radius and homed height
M666 X0 Y0 Z0 A0.00 B0.00                                                   ; put your endstop adjustments here, or let auto calibration find them
;----------------------------------------------------------------------------------------------------------------------
; Network
;----------------------------------------------------------------------------------------------------------------------
M552 S1    ; configure WiFi adapter
M586 P0 S1 ; configure HTTP
M586 P2 S1 ; configure Telnet

;----------------------------------------------------------------------------------------------------------------------
; Drives
;----------------------------------------------------------------------------------------------------------------------
M569 P0 S0                                                                  ; physical drive 0 goes forwards
M569 P1 S0                                                                  ; physical drive 1 goes forwards
M569 P2 S0                                                                  ; physical drive 2 goes forwards
M569 P3 S0                                                                  ; physical drive 3 goes forwards
M569 P4 S0
M584 X0 Y1 Z2 E3:4                                                          ; set drive mapping
M350 X32 Y32 Z32 I1                                                         ; configure microstepping without interpolation
M350 E16:16 I1                                                              ; configure microstepping with interpolation
M92 X320 Y320 Z320 E822.34:830.52
;From 1.8 deg steppersM92 X320 Y320 Z320 E848.6:823.88                      ; set steps per mm
;M566 X3000.00 Y3000.00 Z3000.00 E1500.00:1500.00                           ; set maximum instantaneous speed changes (mm/min)
M566 X1000.00 Y1000.00 Z1000.00 E1000:1000                                  ; set maximum instantaneous speed changes (mm/min)
;M203 X18000.00 Y18000.00 Z18000.00 E3700.00:3700.00                        ; set maximum speeds (mm/min)
M203 X18000.00 Y18000.00 Z18000.00 E6000.00:6000.00                         ; set maximum speeds (mm/min)
;M201 X9000.00 Y9000.00 Z9000.00 E8000.00:8000.00                           ; set accelerations (mm/s^2)
M201 X3000.00 Y3000.00 Z3000.00 E3000.00:3000.00                            ; set accelerations (mm/s^2)
M906 X1500 Y1500 Z1500 E1500:1500 I30                                       ; set motor currents (mA) and motor idle factor in per cent
M84 S30                                                                     ; Set idle timeout
;----------------------------------------------------------------------------------------------------------------------
; XYZ Axis Calibration
;----------------------------------------------------------------------------------------------------------------------
M579 X1.003610388 Y1.003610388 Z1.000001
;----------------------------------------------------------------------------------------------------------------------
; Firmware retraction
;----------------------------------------------------------------------------------------------------------------------
M207 S1.85 F7000 R0 T2500 Z5
;----------------------------------------------------------------------------------------------------------------------
; Axis Limits
;----------------------------------------------------------------------------------------------------------------------
M208 Z0 S1                                                                  ; set minimum Z
;----------------------------------------------------------------------------------------------------------------------
; Endstops
;----------------------------------------------------------------------------------------------------------------------
M574 X2 S1 P"xstop"
M574 Y2 S1 P"ystop"
M574 Z2 S1 P"zstop"

;----------------------------------------------------------------------------------------------------------------------
; Z-Probe
;----------------------------------------------------------------------------------------------------------------------
M558 P8 R0.4 F1200 C"zprobe.in+zprobe.mod" H5 A3 S0.15 T10000               ;
G31 P100 X0 Y0 Z0;G31 P100 X0 Y0 Z-.0194;-.127;
M557 R180 S18
G29 S1

;----------------------------------------------------------------------------------------------------------------------
; Heaters
;----------------------------------------------------------------------------------------------------------------------
M308 S0 P"bedtemp" Y"thermistor" T100000 B4138                              ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bedheat" T0                                                       ; create bed heater output on bedheat and map it to sensor 0
M143 H0 S120                                                                ; set temperature limit for heater 0 to 120C

M140 H0                                                                     ; map heated bed to heater 0
M308 S1 P"e0temp" Y"pt1000" T100000 B4138                                   ; configure sensor 1 as thermistor on pin e0temp
M950 H1 C"e0heat" T1                                                        ; create nozzle heater output on e0heat and map it to sensor 1
M143 H1 S295                                                                ; set temperature limit for heater 1 to 280C
;E3dV6
M307 H1 A383.9 C128.9 D5.1 V24.1
;----------------------------------------------------------------------------------------------------------------------
; Fans
;----------------------------------------------------------------------------------------------------------------------
M950 F0 C"fan0" Q100                                                        ; create fan 0 on pin fan0 and set its frequency
M106 P0 C"Part Fan" S0 H-1                                                  ; set fan 0 name and value. Thermostatic control is turned off
M950 F1 C"fan1" Q500                                                        ; create fan 1 on pin fan1 and set its frequency
M106 P1 C"HF" H1 T45 L255                                                   ; set fan 1 name and value. Thermostatic control is turned on
M950 F2 C"fan2" Q500
M106 P2 C"Duet Fan" S127 H-1
;----------------------------------------------------------------------------------------------------------------------
; Tools #0
;----------------------------------------------------------------------------------------------------------------------
M563 P0 S"HotEnd" D0 H1 F0                                                  ; define tool 0
G10 P0 X0 Y0 Z0                                                             ; set tool 0 axis offsets
G10 P0 R0 S0                                                                ; set initial tool 0 active and standby temperatures to 0C
;----------------------------------------------------------------------------------------------------------------------
; Tools #1
;----------------------------------------------------------------------------------------------------------------------
M563 P1 S"HotEnd" D1 H1 F0                                                  ; define tool 0
G10 P1 X0 Y0 Z0                                                             ; set tool 0 axis offsets
G10 P1 R0 S0                                                                ; set initial tool 0 active and standby temperatures to 0C
;----------------------------------------------------------------------------------------------------------------------
; Filament runout Switches
;----------------------------------------------------------------------------------------------------------------------
;M591 D0 C"e1_stop" P2 S1                                                    ; extruder 1 filament runout sensor
;M591 D1 C"e0_stop" P2 S1                                                   ; extruder 2 filament ronout sensor
M591 D0 P3 C"e0_stop" S1 L25.62 R50:120 A1                                  ; filament monitor connected to E0_stop
m591 d1 P3 C"e1_stop" S1 L25.74 R20:120 A1 E3
;----------------------------------------------------------------------------------------------------------------------
;Accelerometer
;----------------------------------------------------------------------------------------------------------------------
M955 P0 C"spi.cs4+spi.cs3"
;----------------------------------------------------------------------------------------------------------------------
;Input Shaping
;----------------------------------------------------------------------------------------------------------------------
M593 P"ZVDDD" F55 S0.1                                                      ; Use AVDD input shaping to cancel rining at 50 Hz
;----------------------------------------------------------------------------------------------------------------------
; Miscellaneous
;----------------------------------------------------------------------------------------------------------------------
M572 D0 S0.2                                                             ; Pressure advance
M572 D1 S0.2
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000"                          ; set voltage thresholds and actions to run on power loss
M950 P3 C"exp.heater3" Q500                                                 ; Set LED to GPIO pin 3 bank
M404 N1.75
M592 D0 A0.011806 B0.0026876

;----------------------------------------------------------------------------------------------------------------------
; LOAD CONFIG_OVERRIDE.G				NOTHING GOES AFTER HERE BUT M501
;----------------------------------------------------------------------------------------------------------------------
M501

@dc42
No need for apologies! I am very happy with responses and working with me to figure out what was going on.

@dc42
Sensitivity

M672 S105:20:235

It does not flash when tapping the nozzle

@dc42
Hot end cold

5/25/2022, 8:31:19 AM	Error: Probe was not triggered during probing move
Error: Probe was not triggered during probing move
G32 bed probe heights: 0.570 0.441 0.240 0.430 0.492 0.213 0.223 0.329 -1.567 -2.932 -2.856 -2.898 probing failed probing failed probing failed -2.830 -2.969 -2.959 -2.827 -2.841, mean -1.087, deviation from mean 1.530
5/25/2022, 8:31:14 AM	Error: Probe was not triggered during probing move
Error: Probe was not triggered during probing move
5/25/2022, 8:31:12 AM	Error: Probe was not triggered during probing move
5/25/2022, 8:31:11 AM	M98 P"0:/macros/dc42"
Error: Probe was not triggered during probing move
5/25/2022, 8:30:49 AM	M558 A1

Hot end at 205C and bed at 60C No print cooling fans

5/25/2022, 8:35:45 AM	M98 P"0:/macros/dc42"
G32 bed probe heights: 0.297 0.298 0.280 0.356 0.182 0.294 0.473 0.204 0.374 0.279 0.355 0.146 0.179 0.205 0.443 0.253 0.366 0.359 0.356 0.089, mean 0.289, deviation from mean 0.097
5/25/2022, 8:35:12 AM	M558 A1```

@dc42

M558 P8 R0.4 F1200 C"zprobe.in+zprobe.mod" H5 A3 S0.15 T10000;

@dc42 during
Fan lines are all far away from the electronics. Also currently not running fans during this testing due to any possibility of EMF issues. I removed C8 and am still getting a pretty big spread. I ran sensitivities from 10 to 30 (30 seems to not always trigger and crash).

5/23/2022, 9:21:44 AM	Stopped at height 0.303 mm
5/23/2022, 9:21:41 AM	Stopped at height 0.336 mm
5/23/2022, 9:21:38 AM	Stopped at height 0.413 mm
5/23/2022, 9:21:35 AM	Stopped at height 0.289 mm
5/23/2022, 9:21:32 AM	Stopped at height 0.297 mm
5/23/2022, 9:21:29 AM	Stopped at height 0.443 mm
5/23/2022, 9:21:06 AM	Stopped at height 0.412 mm
5/23/2022, 9:21:03 AM	Stopped at height 0.330 mm
5/23/2022, 9:21:00 AM	Stopped at height 0.261 mm
5/23/2022, 9:20:57 AM	Stopped at height 0.447 mm
5/23/2022, 9:20:54 AM	Stopped at height 0.483 mm
5/23/2022, 9:20:51 AM	Stopped at height 0.205 mm
5/23/2022, 9:20:48 AM	Stopped at height 0.311 mm
5/23/2022, 9:20:45 AM	Stopped at height 0.425 mm
5/23/2022, 9:20:42 AM	Stopped at height 0.422 mm
5/23/2022, 9:20:39 AM	Stopped at height 0.209 mm
5/23/2022, 9:20:37 AM	Stopped at height 0.308 mm
5/23/2022, 9:20:34 AM	M98 P"0:/macros/Z_Tuning/8_Repeatability"
Stopped at height 0.449 mm
5/23/2022, 9:20:03 AM	M672 S105:20:235

@dc42 So I can't for the life of me get this thing to read consistently and within any sort of reasonable tolerance. This is the output of ~25 G30 S-1 up 5mm as the commissioning tutorial runs just repeated with a one second delay between movements. Seems all over the place. The sensitivity settings are at the bottom to keep track of what tests I'm running.

5/21/2022, 3:35:51 PM	Stopped at height -0.370 mm
5/21/2022, 3:35:48 PM	Stopped at height -0.460 mm
5/21/2022, 3:35:45 PM	Stopped at height -0.599 mm
5/21/2022, 3:35:42 PM	Stopped at height -0.688 mm
5/21/2022, 3:35:38 PM	Stopped at height -0.451 mm
5/21/2022, 3:35:36 PM	Stopped at height -0.641 mm
5/21/2022, 3:35:32 PM	Stopped at height -0.688 mm
5/21/2022, 3:35:29 PM	Stopped at height -0.634 mm
5/21/2022, 3:35:26 PM	Stopped at height -0.641 mm
5/21/2022, 3:35:23 PM	Stopped at height -0.671 mm
5/21/2022, 3:35:20 PM	Stopped at height -0.630 mm
5/21/2022, 3:35:17 PM	Stopped at height -0.474 mm
5/21/2022, 3:35:14 PM	Stopped at height -0.541 mm
5/21/2022, 3:35:11 PM	Stopped at height -0.623 mm
5/21/2022, 3:35:08 PM	Stopped at height -0.670 mm
5/21/2022, 3:35:05 PM	Stopped at height -0.715 mm
5/21/2022, 3:35:02 PM	Stopped at height -0.617 mm
5/21/2022, 3:34:58 PM	Stopped at height -0.677 mm
5/21/2022, 3:34:56 PM	Stopped at height -0.676 mm
5/21/2022, 3:34:52 PM	Stopped at height -0.632 mm
5/21/2022, 3:34:49 PM	Stopped at height -0.640 mm
5/21/2022, 3:34:46 PM	Stopped at height -0.814 mm
5/21/2022, 3:34:43 PM	Stopped at height -0.455 mm
5/21/2022, 3:34:40 PM	Stopped at height -0.374 mm
5/21/2022, 3:34:37 PM	M98 P"0:/macros/Z_Tuning/8_Repeatability"
Stopped at height -0.572 mm
5/21/2022, 3:34:31 PM	M672 S105:20:235
5/21/2022, 3:34:30 PM	M558 P8 R0.4 F1000 C"zprobe.in+zprobe.mod" H5 A3 S0.15 T10000;

Hello,

I just picked up my second smart effector (first was a V2 and still working fine). Thought it would be handy to have a second one. The V3 isn't triggering with taps from a finger or even a light tap of some needle nose. I adjusted sensitivity from low to high hoping to see a change but nothing has changed. It drives into the bed hard. I hooked up my old one to see if something in the setup has changed (bad/loose wiring), works perfectly fine. Everything is rigid nothing loose. when giving it some higher pressure it seems to trigger, green led lights up with no errors (two blinks). Everything else on the board seems to work, fans, heater thermocouple.

I took it under a scope and started really looking at the board. turns out there was a solder bridge between two pins of the Attiny. I'm guessing something got through QC from the board house. After removing the solder I looked into the board files to see what the possible damage could be. Turns out it was shorting the 2.8V rail to ADC1 net. I removed the bridge and ran it.

;Settings
M558 P8 R0.4 F1200 C"zprobe.in+zprobe.mod" H5 A3 S0.15 T10000;

M672 S131:131

The output after a few tests...

measured height (mm)
0.437
0.438
0.442
0.430
0.425
0.439
0.430
0.418
0.429
0.425
0.438
0.438

this gave an average 0f 0.432417mm
a min of 0.418mm
a max of 0.442mm
which gives a delta of 0.024mm

I can't remember the tooth count on my steppers but I am using 0.9 degree steppers.

does this sound about right? I'm wondering if that short has damaged something to where the noise floor has become higher.

thanks for any help!