12V power, 1.04.

Like i said, the board was working fine until the DueX was added. I've looked over the job when i was programming the Duex2 outputs and saw various corners rounded, damaged connectors and wires improperly crimped which leads me to believe it's a screw up.

Can I just run it off USB power for the moment until I get it fixed?

Thanks David for the answers.

Getting an answer for a problem like this on a Sunday... Guess this is why i'm at my 5th board from you guys Much appreciated

Hey,

I'm looking for the right way to control the bed heaters. I have a heavily modified CR10-5S fitted with 4 bed heaters. Right now i'm assigning all heaters and sensors to a single tool and commanding temp changes with G10.

Is there a way to make the duet believe that all my heaters are the bed?

; Bed1 parameters (X-Y-)
M140 P7 H7
M305 P7 X7 T100000 B3950 C0 R4700 ; Set thermistor + ADC parameters for heater 3
M143 H7 S125 ; Set temperature limit for heater 0 to 125C
M570 H7 P420 T10 ; heater fault detection

; Bed2 parameters (X-Y-)
M140 P4 H4
M305 P4 X4 T100000 B3950 C0 R4700 ; Set thermistor + ADC parameters for heater 3
M143 H4 S125 ; Set temperature limit for heater 0 to 125C
M570 H4 P420 T10 ; heater fault detection

; Bed3 parameters (X-Y+)
M140 P5 H5
M305 P5 X5 T100000 B3950 C0 R4700 ; Set thermistor + ADC parameters for heater 3
M143 H5 S125 ; Set temperature limit for heater 0 to 125C
M570 H5 P420 T10 ; heater fault detection

; Bed4 parameters (X-Y-)
M140 P6 H6
M305 P6 X6 T100000 B3950 C0 R4700 ; Set thermistor + ADC parameters for heater 3
M143 H6 S125 ; Set temperature limit for heater 0 to 125C
M570 H6 P420 T10 ; heater fault detection

; Chamber heater parameters
M141 H0 ; heater 4 is the chamber heater
M305 P0 X2 T98640 B4632.86 C9.4861662E-08 R4700 H0 L0 ; heater 2 is monitored by a 100K thermistor with B=3950 and a 4.7K series resistor
M307 H0 B1 ; use bang-bang control for the chamber heater
M570 H0 P900 T5 ; heater fault detection

; Extruder parameters
M305 P1 X1 T98640 B4632.86 C9.4861662E-08 R4700 H0 L0 ; Dyzend thermistor parameters
M143 H1 S315 ; Set temperature limit for heater 1 to 280C
M307 H1 A418.3 C117.5 D4.8 B0 ; Set PID value for H1 (extruder heater)
M570 H1 P120 T15 ; heater fault detection

; Tools
M563 P0 D0 H1 ; Define tool 0
G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets
G10 P0 R150 S0 ; Set initial tool 0 active and standby temperatures to 0C

; Tools
M563 P5 H4:5:6:7 ; Define tool 0
G10 P0 R50 S90 ; Set initial tool 0 active and standby temperatures to 0C

Thanks David for the answers.

Getting an answer for a problem like this on a Sunday... Guess this is why i'm at my 5th board from you guys Much appreciated

12V power, 1.04.

Like i said, the board was working fine until the DueX was added. I've looked over the job when i was programming the Duex2 outputs and saw various corners rounded, damaged connectors and wires improperly crimped which leads me to believe it's a screw up.

Can I just run it off USB power for the moment until I get it fixed?

David,

It is a genuine one. However, clearly my employee screwed something up while installing the thing. I wonder what he did...

David,

There is a jumper on the INT_5.

The small U3 chip appears to have a small "bump" on it. I'd say it does looks lightly damaged

I've had my employe install the duet wifi with a duex2. Duet was previously working.

Problem i'm getting right now is i need to plug the Duet with USB in order to get 3.3v and 5v. I've checked fuse on it and unplugged everything to see if i had a possible short and no luck.

If i power up the Duet strictly on 12V from PSU i don't get the red/green less to light up. If i plug USB i get a normal behaviour.

Any ideas?

Thanks for the answer guys. I think i've got a pretty clear idea of how i'm going to pull it off. Also i just received a funding confirmation so i'll be working on this pretty soon

@dc42

Yeah that could be done but I would need additional stepper drivers. Is it possible to use multiple duex boards?

To answer the other questions : this machine will be of big size (600x600) so dual print becomes available. I’m making a lot of molds for a foundry where I have to print 2 identical parts. An idex printer would allow me to cut the cost and lead time for my customer while raising my profit margin.

I’m using a dyzextruder since I plan on using a heated chamber. Those things are incredibly reliable and robust and will also allow me to print high end materials. I quickly estimated the weight of an additional dyzex + x-motor setup to roughly 650g. Shaving this off the axis would allow faster accélérations and considerably cut print times. Most parts i print for my customers are over 20 hours so a 10-15% reduction in print time is considerable. As for complexity, I don’t really see where the challenge is there. I would only need an additional set of linear blocks, another Y motor/belt and a set of pulleys.

Here's a sketch of what i'm thinking about.
Extruder move on the X axis like they would normally but each "X-bars" has it's own Y motor making the thing an idex printer. The main advantage of this would be the weight reduction of the x-bars.

It would of course need a DueX5. One could also decide to put in a 3rd bar and use 1-Z, 3-X, 3-Y,3-E motors and take full advantage of the DueX5. It would however need strict rules to prevent crashes