Firmware 1.19RC1 released - please help us with testing!

dc42

Hi Lars, thanks for trying RC2. However, as I have neither an IDEX machine nor a CoreXY machine to test on, I need more data:

1. When you changed to a second tool, where on the X/U axis were the two carriages?

2. Please publish your homing files so that I can simulate them as best I can.

3. Please run some more tests. You can help protect the mechanics of your machine by reducing motors currents, as well as having a hand on the power switch.

Try homing X, Y, U and Z individually. When you have found one that doesn't work, run the commands in that homing file individually, then you can tell me which command is giving the problem.

Thanks - David

T3P3Tony

Lars, I think it might be something peculiar with CoreXYU and tools on RC2 as well. I have tested tool changing on a Cartesian IDEX and it appears to work correctly. Can you also publish your tool change macros pls.

dc42

Hi Lars, I think I just found the problem with homing Core kinematics, so no need for those tests now.

Kulitorum

IDEX still dont work.
The z offset is still not used on the printheads, while it is still displayed correctly in the interface. - in the video, the purple toolhead should have been printing 10mm over the bed.
Worse, the heads craches on second toolchange.

Config files:
www.kulitorum.com/download.zip

Video:
https://www.youtube.com/watch?v=7ePx8PGa_Mg

Kulitorum

dc42

Thanks Kulitorum, that's helpful. Which tool is printing which colour? I'm guessing that T0 is black and T1 is purple so that the second tool change is T1->T0, but maybe you have it the other way round?

Kulitorum

Hmm, I just realized that after the second toolchange, as the heads craches, it is actually printing at z10….

But the z offset of 10mm is defined for tool 1 (left tool) and is used for tool 0 (right tool) but only on the second usage of that tool.

Kulitorum

You are right - tool 0 is the right tool, black filament, tool 1 is the left tool, purple filament.

Kulitorum

And here's the gcode for the print - for reference:

www.kulitorum.com/2color4x20mmbox.gcode

dc42

Thanks. I think the Z offset is working correctly. You have specified a Z offset of +10mm for tool 1, which means that tool 1 nozzle is 10mm higher than the reference point. So it should be trying to print 10mm below the bed surface; but you probably have a limit set at 0mm. If you want the tool to print 10mm above the bed, you need to specify a tool Z offset of -10mm in your G10 command.

Using your configuration, I have replicated the problem of the U axis moving when you re-select tool 0 and move the head in X, and I am investigating it.

Kulitorum

Ok, cool. If this is correct, then why is tool 0 printing at z10 for the last 5 secs if my video?

dc42

That would because when tool 1 was selected, moving to Z offset 0+first layer height was prohibited, so it moved to 10mm + first layer height. Then when you reselected tool 0, Z was at 10 + layer heights and now G1 Z command has been read in the gcode file yet.

Kulitorum

Just tested with head 0 offset of -10 and G1 Z commands after tool change, that everything seems to be working, apart from the head crash. Cool.

dc42

Kulitorum, thanks.

Lars and Kulitorum, I've just released RC3 with fixes for (I hope) CoreXY homing and IDEX tool change. Please try it (carefully - I suggest you reduce motor currents at first).

Kulitorum

Thanks. Just tried it, and on the first change to T1, this happens:

T0 is moved away correctly.
T1 should move to R2, (R1?) but it tries to move the wrong direction, and just slams the head left.

I let T1 print (outside the printbed) and when it was done it slammed left again. Then T0 did its thing correctly.
Then T0 parked, and T1 printed correctly. (although offset 2mm left because of the headcrashes)

https://www.youtube.com/watch?v=3XrpYAhsDrg

Kulitorum

After T0 layer2:
https://www.youtube.com/watch?v=dtG9O0oW2Wc

dc42

Thanks again for the videos. Is the +X direction to the left on your printer?

lars

Still problem with RC3. I move X and U and it works (T0 is active tool after boot). I change to T1 (right tool) and when doing a X+1 (or was it X-1) it stats to move towards the right side. I managed to emergency stop before crash as lowered both max speed and current. This is unhomed so no tool change scrips should run but as you requested them I'll include them below, I only have tfree0.g and tfree1.g.

Homing worked better this time but first time I ran it the right (t1) carriage never move out to the end stop. I could not reproduce this but I believe I have seen it once before (in earlier betas), that time it was t0. Second homing worked as it should. I restarted the duet and homed again and it worked.

tfree0.g

G90
G1 X-33 F18000

tfree1.g

G90
G1 X525 F18000

config.g

; Communication and general
M111 S0                             	; Debug off
M550 PDuetWiFi		; Machine name and Netbios name (can be anything you like)
M551 Pxxxxx                        	; Machine password (used for FTP)
;*** If you have more than one Duet on your network, they must all have different MAC addresses, so change the last digits
M540 P0xBE:0xEF:0xDE:0xAD:0xFE:0xED 	; MAC Address
;*** Wifi Networking
M552 S1				; Enable WiFi. Disabled for setup and testing. Enable once set up on your network.

M555 P2                           	; Set output to look like Marlin
M575 P1 B57600 S1			; Comms parameters for PanelDue

G21                                 	; Work in millimetres
G90                                	; Send absolute coordinates...
M83                                 	; ...but relative extruder moves

; Core xyu
M669 K5 ; Select CoreXYU mode

; Axis and motor configuration
M584 Y5 X7 U8 V6 E3:4 Z0:1:2         ; Set up steppers for x, y, u, v, z and e, use P4 once it works to hide V
M671 X-60:560:250 Y-10:-10:560 S0.5  ; Set up lead screw positions for bed leveling

M574 X1 Y1 U2 S1			; set endstop configuration (all endstops at high end, active high)
M574 Z0 S0

M208 X-38 Y-5 U-5 V-5 Z0 S1 ; Set axis minima
M208 X495 Y500 U529.45 V500 Z700 S0 ; Set axis maxima U600 - 37 - 38 = 525

M569 P0 S0 ; Drive 0 goes forwards Z
M569 P1 S0 ; Drive 1 goes forwards Z
M569 P2 S0 ; Drive 2 goes forwards Z
M569 P3 S0 ; Drive 3 goes forwards E0
M569 P4 S0 ; Drive 4 goes forwards E1
M569 P5 S1 ; Drive 5 goes forwards Y
M569 P6 S1 ; Drive 6 goes forwards V
M569 P7 S1 ; Drive 7 goes forwards X
M569 P8 S1 ; Drive 8 goes forwards U
M569 P9 S1 ; Drive 9 goes forwards

M350 X16 Y16 U16 V16 Z16 E16:16 I1 ; Configure microstepping with interpolation
M92 X160 Y160 U160 V160 Z1600 ; Set steps per mm
M566 X800 Y800 U800 V800 Z24 E20:20 ; Set maximum instantaneous speed changes (mm/min)
M203 X24000 Y24000 U24000 V24000 Z400 E1800:1800 ; Set maximum speeds (mm/min)
M201 X1500 Y1500 U1500 V1500 Z250 E120:120 ; Set accelerations (mm/s^2)
M906 X1700 Y1700 U1700 V1700 Z1700 E800:800 I30 ; Set motor currents (mA) and motor idle factor in per cent

M84 S30 ; Set idle timeout

; Thermistors
M305 P0 T100000 B3950 R4700 H30 L0	; Put your own H and/or L values here to set the bed thermistor ADC correction

M305 P1 X200 ; USE PT100 for heater 1 tool 0
M305 P2 X201 ; USE PT100 for heater 2 tool 1

M570 S180				; Hot end may be a little slow to heat up so allow it 180 seconds

; Fans
M106 P0 S0 H-1 				; Part cooling, disable thermostatic mode for fan 0
M106 P1 T50 H1                          ; Set fan 1 to thermostatic mode for hotend 1 at 50deg
M106 P2 T50 H2                          ; Set fan 2 to thermostatic mode for hotend 2 at 50deg

; Tool definitions
; Tool 0
M563 P0 D0 H1                       	; Define tool 0
G10 P0 S0 R0                        	; Set tool 0 operating and standby temperatures
; Tool 1
M563 P1 D1 H2 X3                    	; Define tool 1 and bind it to U-axis (X3)
G10 P1 U0.15 Y-0.425 Z0.2 S0 R0         ; Set tool 1 operating and standby temperatures
M92 E2650:2650                       	; Set extruder steps per mm

; Z probe and compensation definition
M558 P6 X0 Y0 Z0                        ; Z probe is an BLTouch probe connected to E1-endstop (last)
G31 T6 X-14 Y-26.765 Z2.70 P10			; Set the zprobe height and threshold (put your own values here)

M557 X30:470 Y30:470 S44  ; Probe grid
M376 H5                   ; Taper of bed compensation

;*** If you are using axis compensation, put the figures in the following command
M556 S78 X0 Y0 Z0                   	; Axis compensation here

; Heater model parameters
M307 H0 A93.0 C167.8 D2.5 S1.00 B0   ; Bed
M307 H1 A259.8 C120.8 D3.2 S1.00 B0  ; Tool 0
M307 H2 A356.8 C180.3 D3.9 S1.00 B0  ; Tool 1
; BLTouch connected to PWM5/E6
M307 H7 A-1 C-1 D-1

M208 S1 Z-0.2				; set minimum Z

T0					; select first hot end

Kulitorum

yes, +x is to the left in the videos

Kulitorum

Any progress? - Eager to start testing

dc42

I really appreciate your help, because I need to resolve this today ready for the release tomorrow.

I'm puzzled because I just ran some more tests and I can't replicate your issue using RC3. Please can you try the following:

1. Home all axes. I homed X, Y and U in that order, and then sent G92 Z0 because I don't have a Z probe on my test rig.

2. Either send M302 P1 to enable cold extrusion or heat the hot ends up so that the tool change macros don't generate error messages.

3. Send the following sequence of commands:

T0
G1 X100 ; X carriage moves to 100
T1 ; X carriage moves to near home position
G1 X200 ; U carriage moves to 200
T0 ; U carriage moves to near home position
G1 X100 ; X carriage moves to 100

If this goes wrong, please let me know where and/or post a video. If it doesn't go wrong, please try to find a simple sequence that does.