Hello,
i'm building an IDEX printer.
my mechanics configuration is similar to the one described here:
https://duet3d.dozuki.com/Wiki/ConfiguringMultipleIndependentXcarriagesCartesian
The differences: my X axis is homing on right side, so HIGH end (460mm). U axis is homing on left side, LOW end (-20mm)
the printable area for both extruder goes from 0mm to 440mm. Here's the config file:
; Configuration file for Duet 3 (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.1.4 on Sat Oct 31 2020 09:49:18 GMT+0100 (Ora standard dell’Europa centrale)
; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"Autotex 1" ; set printer name
; Network
M552 P0.0.0.0 S1 ; enable network and set IP address
;M553 P255.255.255.0 ; set netmask
;M554 P192.168.50.254 ; set gateway
M586 P0 S1 ; enable HTTP
M586 P1 S1 T0 ; enable FTP
M586 P2 S1 ; enable Telnet
; Drives
M569 P0.0 S0 ; physical drive 0.0 goes backward
M569 P0.1 S1 ; physical drive 0.1 goes forwards
M569 P0.2 S0 ; physical drive 0.2 goes backward
M569 P0.3 S1 ; physical drive 0.3 goes forwards
M569 P0.4 S0 ; physical drive 0.4 goes forwards
M569 P0.5 S1 ; physical drive 0.5 goes forwards
M584 X0.0 Y0.2 Z0.3 U0.1 E0.4:0.5 ; set drive mapping
M350 X16 Y16 Z16 U16 E16:16 I1 ; configure microstepping with interpolation
M92 X76.58 Y80.00 Z1282.0513 U76.58 E837.00:837.00 ; set steps per mm
M566 X900.00 Y900.00 Z12.00 U900.00 E120.00:120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z500.00 U6000.00 E1200.00:1200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z100.00 U500.00 E250.00:250.00 ; set accelerations (mm/s^2)
M906 X3000 Y3000 Z3000 U3000 E1600:1600 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout
; Axis Limits
M208 X0 Y0 Z0 U-20 S1 ; set axis minima
M208 X460 Y305 U440 Z310 S0 ; set axis maxima
; Endstops
M574 X2 S1 P"!^io0.in" ; configure active-low endstop for high end on X via pin io0.in pull up
M574 U1 S1 P"!^io1.in" ; configure active-low endstop for low end on U via pin io1.in pull up
M574 Y1 S1 P"!^io2.in" ; configure active-low endstop for low end on Y via pin io2.in pull up
M574 Z1 S1 P"!^io3.in" ; configure active-low endstop for low end on Z via pin io3.in pull up
; Sensore filamento
M591 D4 P1 C"io4.in" S1
; Z-Probe
M558 P0 H5 F120 T6000 ; disable Z probe but set dive height, probe speed and travel speed
M557 X15:425 Y15:290 S20 ; define mesh grid
; Heaters
M308 S0 P"spi.cs0" Y"rtd-max31865" A"Destro" ; configure sensor 0 as thermocouple via CS pin spi.cs0
M950 H0 C"out1" T0 ; create nozzle heater output on out1 and map it to sensor 0
M307 H0 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M143 H0 S500 A2 ; imposta limite di temperatura con spegnimento temporaneo se oltrepassato
M308 S1 P"spi.cs1" Y"rtd-max31865" A"Sinistro" ; configure sensor 1 as thermocouple via CS pin spi.cs1
M950 H1 C"out2" T1 ; create nozzle heater output on out2 and map it to sensor 1
M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M143 H1 S500 A2 ; imposta limite di temperatura con spegnimento temporaneo se oltrepassato
M308 S2 P"temp1" Y"thermistor" T10000 B3963 A"Piano" ; define bed temperature sensor
M950 H2 C"out3" T2 ; create badheater output on out3 and map it to sensor 2
M307 H2 B1 D100 ; abilita bang-bang
M140 H2 ; map heated bed to heater 0
M143 H2 S200 A2 ; imposta limite di temperatura con spegnimento temporaneo se oltrepassato
M308 S3 P"temp0" Y"thermistor" T10000 B3963 A"Camera" ; define chambre temperature sensor
M950 H3 C"out0" T3 ; create chambre output on out3 and map it to sensor 3
M307 H3 B1 ; abilita bang-bang
M141 H3 ; heater 3 is the chamber heater
M143 H3 S150 A2 ; imposta limite di temperatura con spegnimento temporaneo se oltrepassato
; Fans
; Tools per stampare un oggetto solo
M563 S"Destro" P0 D0 H0 X0 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
M563 S"Sinistro" P1 D1 H1 X3 F0 ; tool 1 uses extruder 1 and heater 2 and maps X to U
G10 P1 Y0 U0 Z0 S0 R0 ; set tool 1 offsets and temperatures
; Tools per stampare due oggetti contemporaneamente oggetti identici
M563 S"Combinato" P2 D0:1 H0:1 X0:3 F0:0 ; tool 2 uses both extruders and hot end heaters, maps X to both X and U, and uses both print cooling fans
G10 P2 X-110 Y0 U110 S0 R0 ; set tool offsets and temperatures for tool 2
M567 P2 E1:1 ; set mix ratio 100% on both extruders
M568 P2 S1 ; turn on mixing for tool 2
; Custom settings are not defined
; Stall detection
M915 Z R0 F0 S0; R0 non fa nulla in caso di stallo F0 non filtrato S soglia (da -64 a +63)
Everything looks ok with T0 and T1. I have problem with T2 (the duplication tool)
if i select T2 from DWC before homing the extruders moves about 100mm in the homing direction (U on left and X on right). if they are too close to the endstop they crash.
if i home before selecting any tool it homes correctly. Then i select T2 and the extruders moves about 100mm in the center direction (U on right and X on the left). DWC is indication 220mm for both X and U position. Jogging the X axis from DWC, they move together, but the X position is about 100mm higher than the correct value.
if i home after selcting T2, they home correctly, but DWC indicates 220mm for both X and U position, even if they are in home position, so if i move X axis from DWC on negative direction U crash against endstop, if i move it in positive direction X crash against enstop. they are moving together
i tested different offset value. tried to swap signs, but i can't make it work.
i commented everything in tfree tpost tpre.
Board: Duet 3 MB6HC (MB6HC)
Firmware: RepRapFirmware for Duet 3 MB6HC 3.1.1 (2020-05-19b2)
working in stand alone mode
What am i doing wrong?
Thanks in advance
Andrea
