Play with Input Shaping

[samu_87]

Hello I had install the accelerometer on my home made delta (R400 H500) printer:

Now I'm trying to understand how it works, This is without filter:

and this adding the filter that some testing I think have the better results:

There is the movements:

My questions are:

1. Why the does the filter acts so little?
2. What is damping factor?
3. How can I do to make better results?

Thansk!

[dc42]

@samu_87 what M566 settings do you have for X and Y in config.g? High values make input shaping less effective. The default value of 600 works well on most machines.

[samu_87]

@dc42 i have X600 and Y600

I add my config.g maybe it can be useful

; executed by the firmware on start-up
;
; General preferences
G90                                                                                             ; Send absolute coordinates...
M83                                                                                             ; ...but relative extruder moves
M665 R280.8 L515 B200 H574.800 X0.0 Y0.0 Z0.0							; Set delta radius, diagonal rod length, printable radius and homed height
M666 X0.0 Y0.0 Z0.0 A0 B0                                                                             ; Put your endstop adjustments here, or let auto calibration find them

; Network
M550 P"Delta"                                                                                   ; Set machine name
M551 P"NoPassword"                                                                                ; Set password
M552 S1                                                                                         ; Enable network

M586 P0 S1                                                                                      ; Enable HTTP
M586 P1 S0                                                                                      ; Disable FTP
M586 P2 S0                                                                                      ; Disable Telnet

; Drives
M569 P0 S1                                                                                      ; Drive 0 goes forwards
M569 P1 S1                                                                                      ; Drive 1 goes forwards
M569 P2 S1                                                                                      ; Drive 2 goes forwards
M569 P3 S1                                                                                      ; Drive 3 goes forwards
M584 X0 Y1 Z2 E3
M350 X16 Y16 Z16 E16 I1                                                                         ; Configure microstepping without interpolation
M92 X200.00 Y200.00 Z200.00 E432                               	                              	; Set steps per mm
M566 X600 Y600 Z2800 E6000.00 P1                                               			; Set maximum instantaneous speed changes (mm/min)
M203 X18000.00 Y18000.00 Z18000.00 E900.00                                                    	; Set maximum speeds (mm/min)
M201 X3000.00 Y3000.00 Z3000.00 E5000.00                                                      	; Set accelerations (mm/s^2)
M906 X1600.00 Y1600.00 Z1600.00 E1000.00 I30                                                    ; Set motor currents (mA) and motor idle factor in per cent
M84 S30                                                                                         ; Set idle timeout


; Axis Limits
M208 Z0 S1                                                                                ; Set minimum Z

; Endstops
M574 X2 P"xstop" S1
M574 Y2 P"ystop" S1
M574 Z2 P"zstop" S1


; Z-Probe
M558 P1 C"!zprobe.in" R0.4 F240 H5 T4800
G31 X0 Y0 Z0.15 P500

M557 R160 S40                                 ; Define mesh grid

; Heaters
M308 S0 P"e1temp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin e1temp
M950 H0 C"e1heat" T0                          ; create bed heater output on e1heat and map it to sensor 0
M307 H0 B1 S1.00                              ; enable bang-bang mode for the bed heater and set PWM limit
M140 H0                                       ; map heated bed to heater 0
M143 H0 S120                                  ; set temperature limit for heater 0 to 120C
M308 S1 P"spi.cs1" Y"rtd-max31865"            ; configure sensor 1 as PT100 on pin spi.cs1
M950 H1 C"bedheat" T1                         ; create nozzle heater output on bedheat and map it to sensor 1
M307 H1 B0 S1.00                              ; disable bang-bang mode for heater  and set PWM limit
M143 H1 S280                                  ; set temperature limit for heater 1 to 280C


; Fans
M950 F0 C"fan0" Q500                          ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0 H-1                                ; set fan 0 value. Thermostatic control is turned off

;CPU Fan
M308 S3 Y"mcu-temp" A"MCU" ; configure sensor 3 as on-chip MCU temperature sensor
M950 F2 C"fan2" Q100 ; create fan 2 on pin fan2 and set its frequency
M106 P2 H3 T20:70 ; set fan 2 value

; Tools
M563 P0 S"tool1" H1 F0 D0						; define tool 1
G10 P0 X0 Y0 Z0                               ; set tool 1 axis offsets
G10 P0 R0 S0                                  ; set initial tool 1 active and standby temperatures to 0C

M204 P1800

M579 X1.004 Y1.01

M591 D0 P1 C"e0stop" S1										;Sensore di Fine_Filo
M572 D0 S0.05

M955 P0 C"spi.cs4+spi.cs3" I20	;Accelerometer
;T0 ;Enable Extruder
M501

; Automatic saving after power loss is not enabled

; Custom settings are not configured