Topics created by Wurstkarton

Here is a video on the topic, measuring the force applied on the hotend by the extruder, in a dedicated test contraption.

https://youtu.be/rrz3bbsnMUI

@Wurstkarton said in Firmware retraction question:

What do you do if you have extruders that behave differently?

Change extruders for some decent ones that all behave the same 🙂

@BotLawson said in Duet Maesto Stepper Driver Expansion Schematic:

Looking at the layout render, it looks like the culprit is the Vin trace to C6. It cuts off the direct path to ground and forces current from R3 to loop around the outside of the pcb. Personally, I'd put R3 and R2 between the TMC chip and stepper connector and give them 2-4 vias to the ground plane and the thermal die pad of the TMC. The motor phase connections can then sneak under or around the 805 resistor.

Exactly. There is this "unconnected" peninsula to the right of R3/C2. Great job to both of you guys. I guess this fixes it. 🙂

I generated the config again with the online configurator, but this does not change the result.

; Configuration file for Duet Maestro (firmware version 2.03) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v2.0.4 on Sat Sep 21 2019 11:18:51 GMT+0200 (Mitteleuropäische Sommerzeit) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"KrakingCyclops" ; set printer name M918 P1 E-4 F2000000 ; configure direct-connect display ; Network M552 P0.0.0.0 S1 ; enable network and acquire dynamic address via DHCP M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable FTP M586 P2 S0 ; disable Telnet ; Drives M569 P0 S0 D2 ; physical drive 0 goes forwards M569 P1 S0 D2 ; physical drive 1 goes forwards M569 P2 S1 D2 ; physical drive 2 goes forwards M569 P3 S0 D2 ; physical drive 3 goes forwards M569 P4 S1 D2 ; physical drive 4 goes forwards M569 P5 S1 D2 ; physical drive 5 goes forwards M569 P6 S1 D2 ; physical drive 6 goes forwards M584 X0 Y1 Z2 E3:4:5:6 ; set drive mapping M350 X16 Y16 Z16 E16:16:16:16 I1 ; configure microstepping with interpolation M92 X80.00 Y80.00 Z400.00 E415.00:415.00:415.00:415.00 ; set steps per mm M566 X1200.00 Y1200.00 Z60.00 E300.00:300.00:300.00:300.00 ; set maximum instantaneous speed changes (mm/min) M203 X9000.00 Y9000.00 Z600.00 E2400.00:2400.00:2400.00:2400.00 ; set maximum speeds (mm/min) M201 X750.00 Y750.00 Z20.00 E750.00:750.00:750.00:750.00 ; set accelerations (mm/s^2) M906 X650 Y750 Z650 E900:900:900:900 I50 ; set motor currents (mA) and motor idle factor in per cent M84 S10 ; Set idle timeout ; Axis Limits M208 X-11 Y-41 Z0 S1 ; set axis minima M208 X250 Y220 Z200 S0 ; set axis maxima ; Endstops M574 X1 Y1 S0 ; set active low and disabled endstops ; Z-Probe M574 Z1 S2 ; set endstops controlled by probe M558 P9 H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds G31 P500 X30 Y0 Z4.017 ; set Z probe trigger value, offset and trigger height M557 X-10:220 Y-10:220 S23 ; define mesh grid ; Heaters M307 H0 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit M305 P0 T100000 B4138 R2200 ; set thermistor + ADC parameters for heater 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C M305 P1 T100000 B4725 C7.060000e-8 R2200 ; set thermistor + ADC parameters for heater 1 M143 H1 S280 ; set temperature limit for heater 1 to 280C M305 P2 T100000 B4725 C7.060000e-8 R2200 ; set thermistor + ADC parameters for heater 2 M143 H2 S280 ; set temperature limit for heater 2 to 280C M307 H1 A251.6 C190.6 D9.0 S0.6 V24.3 B0 M307 H2 A251.6 C190.6 D9.0 S0.6 V24.3 B0 ; Fans M106 P0 S0.0 I0 F500 H-1 ; set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off M106 P1 S0.0 I0 F500 H-1 ; set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off ; Tools M563 P0 D0:1 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 M568 P0 S1 ; enable mixing for tool 0 M567 P0 E1:0 ; set mixing ratios for tool 0 M563 P1 D1:0 H1 F0 ; define tool 1 G10 P1 X0 Y0 Z0 ; set tool 1 axis offsets G10 P1 R0 S0 ; set initial tool 1 active and standby temperatures to 0C M568 P1 S1 ; enable mixing for tool 1 M567 P1 E1:0 ; set mixing ratios for tool 1 M563 P2 D2:3 H2 F1 ; define tool 2 G10 P2 X0 Y20 Z0 ; set tool 2 axis offsets G10 P2 R0 S0 ; set initial tool 2 active and standby temperatures to 0C M568 P2 S1 ; enable mixing for tool 2 M567 P2 E1:0 ; set mixing ratios for tool 2 M563 P3 D3:2 H2 F1 ; define tool 3 G10 P3 X0 Y20 Z0 ; set tool 3 axis offsets G10 P3 R0 S0 ; set initial tool 3 active and standby temperatures to 0C M568 P3 S1 ; enable mixing for tool 3 M567 P3 E1:0 ; set mixing ratios for tool 3 M563 P4 D0:1 H1 F0 ; define tool 4 G10 P4 X0 Y0 Z0 ; set tool 4 axis offsets G10 P4 R0 S0 ; set initial tool 4 active and standby temperatures to 0C M568 P4 S1 ; enable mixing for tool 4 M567 P4 E0.5:0.5 ; set mixing ratios for tool 4 M563 P5 D2:3 H2 F1 ; define tool 5 G10 P5 X0 Y20 Z0 ; set tool 5 axis offsets G10 P5 R0 S0 ; set initial tool 5 active and standby temperatures to 0C M568 P5 S1 ; enable mixing for tool 5 M567 P5 E0.5:0.5 ; set mixing ratios for tool 5 ; Custom settings are not defined M207 S3.5 F2400 T1200 Z0.2 ; firmware retraction settings M572 D0:1:2:3 S0.2 ; pressure advance

Just if you are curious. 😄

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