Final settings (for future use by anyone interested):

config.g
-----------------------------------------
; Drives
M584 X0:3 Y1:4 Z2 U3 V4 P3; Three axis visible

; Tools
M563 P0 D0 

; Drive direction
M569 P0 S1                       ; Drive 0 goes forwards
M569 P1 S1                       ; Drive 1 goes forwards
M569 P2 S1                       ; Drive 2 goes forwards
M569 P3 S1
M569 P4 S1

; Steps and Speed
M92 X80.00 Y80.00 U80.00 V80.00 Z4000.00 ; Set steps per mm
M566 X900.00 Y900.00 U900.00 V900.00 Z12.00; Set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00 U6000.00 V6000.00; Set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 U500.00 V500.00; Set accelerations (mm/s^2)
M906 X800.00 Y800.00 Z800.00 U800.00 V800.00 I30; motor currents (mA) and motor idle factor
M84 S30  ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 U0 V0 S1                 ; Set axis minima
M208 X600 Y400 Z100 U600 V600 S0           ; Set axis maxima

; Endstops
M574 X1 Y1 U1 V1 S0               ; Set active low and disabled endstops

homex.g
----------------------------------------
M584 X0 U3 P5; split steppers, 5 axis visible
G91 ; relative moves
G1 X-650 U-650  F450 S1 ; fast homing X and U in parallell
;G92 X0 U0 ; Make adjustments to square axis here
M584 X0:3 P3; join steppers, 3 axis visible
G90

dsmudger

I would say these are major steps

• Homing switches (I use a microswitch for X and an old dc42 IR sensor for Z and Y)
• Make adapters or get new cables to stepper motors
• Make adapter or new cable for hot end
• Power supply (I am using the original Cetus power supply)
• Configure the Duet3d (steps/mm and heater values you can see above, the rest I think may vary in your case)

Original connectors can be forced into the Duet board, but I ended up making adapters both for the steppers and the hot end. Pictures below show before the adapters during "proof of concept phase". On the hotend it self I made a new board using experimental circuit board and matching connectors. There was too much interference in the ribbon cable for the signal from the IR board so I added an ethernet (twisted pair) cable for that.

If there are any questions I would be happy to help.

I have upgraded my duet-controlled Cetud3d with a Hemera extruder. I have been testing how fast it can print and still have not reached its limits.

Peak speed in the PLA print below is about 250 mm/s , reported by DWC.

• Lauyerheight 0.20 mm
• Print time 40 minutes.
• Acceleration set to 2500 mm/sec^2 (M201)
• Allowable instantaneous speed change 800 (M566)

This is unnecessary and so much FUN
https://youtu.be/gCN8IdGvwas

I want to share may latest project, a detachable Panel Due caring using RJ45 connectors.

I am building a Duet controlled MPCNC and to be able to move my panel due between my printer and the upcoming CNC. I used RJ45 connectors from a server room patch panel.

I have tested with different LAN cable lengths, 3 m works but not 10 m , it communicated but the touch control did not respond. 3 m will be more than enough.

The hole is for an emergency stop button to be used with the CNC. This is a prototype printed printed with a 0.6 nozzle and 0.4 layer height so it is not the prettiest print.

Happy with the solution so far.

After a print my printer stands pre-heated (at 100C) in standby. When I start slicing my next print I click the heater in DWC to get to active and prepare for printing temp.

But going from standby to active resets all the temps to zero.

I'm a doing something wrong, or is it not ment to be used like this?

Or maybe it is a bug...

Duet Web Control 2.0.0-RC6

@cookie

I'm using the original cetus thermistor. It works well after finding the correct values for it.

I do not think a negative B value is common.
M305 P1 R4700 T112 B-425 C7.060000e-8

I have bees adapting my printer to the new Hemera extruder from E3D.

The included cooling fan for the hotend screams pretty bad at full rpm. My first thought was to order a quieter fan, such as a Noctua.

But before ordering I did some tests and with good results.

I using the PWM settings in M106 the command I configured the fan to only start above 80 degress and max out at 220 degrees with a speed of 170 (of 255) .

This has worked fine for me with no seemingly issues with heat creep. The longest print so fas has ben about three hours.

So I have not had the need to order a new fan, thanks to configuration. That's nice

Have any one else tested anything similar?
What is your experience?

M106 P1 B1 T80:220 H1 X170

(This needs a firmware version supporting the X parameter, >= 2.02)

@bearer That is the hotend terminator.

@Peter120

I have designed a smal but effective bracket that supports the Z-axis on the Cetus.
The fit may vary sepending on the version of Cetus and when it was manufactured.

But it is pretty easy to draw one, if it does not fit.

[https://www.thingiverse.com/thing:2712095]

Great, thanks!

Is there a way to configure the amount Z axis lifts during G29, mesh probing?

@Phaedrux None - not using pressure advance. Have tried it but it brought more trouble than benefit.

I have upgraded my duet-controlled Cetud3d with a Hemera extruder. I have been testing how fast it can print and still have not reached its limits.

Peak speed in the PLA print below is about 250 mm/s , reported by DWC.

• Lauyerheight 0.20 mm
• Print time 40 minutes.
• Acceleration set to 2500 mm/sec^2 (M201)
• Allowable instantaneous speed change 800 (M566)

This is unnecessary and so much FUN
https://youtu.be/gCN8IdGvwas

I am thinking of upgrading to 24 volt. My duet is a 0.85 and I wonder if it is possible to use a buck converter to lower the voltage to 12v on the positive side of the fans.
I have read about this for new duets but have not found anything regarding the 0.85.

Note that the positive side of the fans are NOT supposed to be copnnected to the Duet, just directly to the buck converter.

@bearer That is the hotend terminator.

There seems to be an issue with changing (increasing) the hot end temperature during print. Doing so causes a heater fault and a stopped print.

I have not experienced this in previous versions.

Board: Duet 0.85
Firmware: RepRapFirmware for Duet 1.26 (2019-12-13b1)

I have bees adapting my printer to the new Hemera extruder from E3D.

The included cooling fan for the hotend screams pretty bad at full rpm. My first thought was to order a quieter fan, such as a Noctua.

But before ordering I did some tests and with good results.

I using the PWM settings in M106 the command I configured the fan to only start above 80 degress and max out at 220 degrees with a speed of 170 (of 255) .

This has worked fine for me with no seemingly issues with heat creep. The longest print so fas has ben about three hours.

So I have not had the need to order a new fan, thanks to configuration. That's nice

Have any one else tested anything similar?
What is your experience?

M106 P1 B1 T80:220 H1 X170

(This needs a firmware version supporting the X parameter, >= 2.02)

Issue solved!

That G10 offset did the trick, must have added that as some sort of test and forgot about it.

Thank you for quick help, keep on printing!