Here's the first document I wrote for the mmu2. Treat it as a beta at the moment as I'm sure as more people get more hours with it I think there would be improvements.

https://docs.google.com/document/d/13r_6BTYTO-xlD6cQeNwOx4qeCEYYGrxOcHc0mC-tT8Q/edit?usp=drivesdk

try M591 D0 P1 C3 S1 instead

if you issue a M591 D0 it should then tell you if filament is present or not

in my config.g i didnt put anything with extruder endstops in M574 only xyz

@ungreon said in Multi color printing with Prusa's MMU V2 & Duet?:

I'm assuming you got the full thing working without the prusa MMU v2 board? If so did you modify the MMU assembly at all or just assemble it without the board? Would you consider sharing the g code or slapping together a short tutorial on how to accomplish your solution?

So my mmu2 is just the original without the Prusa electronics. It's hooked up to the duet and a duex2. Longest part in getting it running was getting the endstop configuration on the fly and loading and unloading detection triggers running correctly with additional axes. I'm happy to share my macros, I'll write some things down and share when I get some free time.
Hardest part is shaping the tips so it's reliable,

My genuine smart bltouch has repeatability below 0.03. I had some issues which I found to be my z jerk was too high. I assume was during the z axis retract move causing it for me.

Did you give the heat sink any airflow?

No unfortunately, I've learnt my lesson though and turned it on from now

Another way is to set the Mac address in the router to have a specific address. I had to do this due to not being able to access the internet through my pi for updates. And it's easy as to do.

Make sure you only enable them at the start of a print and disable them at the end again. Have you checked M591 D0 etc to confirm the switch status?

I can agree with the bend radius conclusion, when I was running a 500mm Bowden with a 90 degree bend had occasional issues with this tube and also it pulling out of the bondtech qr. Now run direct BMG with about 50mm of Capricorn tube and it's for all intensive purposes perfectly straight I haven't had a single problem with it, retraction now below 1.0mm

Purge blocks and the like are generated by the slicer or post processing scripts

the stl's arent a requirement, but they only help in the situation when T4 is out of filament and the 50cm or so of left over filament is ejected out the front of the machine if you know what i mean. with the standard selector it will foul in this situation. i havent finished this yet as a filament runout on T4 is very low percentage of my issues but i will do this eventually

@computiger said in Multi color printing with Prusa's MMU V2 & Duet?:

@gavatron3000 said in Multi color printing with Prusa's MMU V2 & Duet?:

https://docs.google.com/document/d/13r_6BTYTO-xlD6cQeNwOx4qeCEYYGrxOcHc0mC-tT8Q/edit?usp=drivesdk

Hmm...

I didn´t understand as I have to.
Can somebody tell me where I have to plug in the Pinda probe. For now I putted him to E0 Endstop, but I can´t home the selector (drive U).

In the description I have to plug him to V but

Here some details of config.g

; Endstops
M574 X1 Y1 S1 ; Set active high endstops
M574 U1 V1 W1 S3 ; Set additional axes as sensorless endstops
M574 Z1 S2 ; Set endstops controlled by probe

;Drives
M569 P4 S0 ; Drive 4 goes backwards V
M569 P5 S1 ; Drive 5 goes forwards U
M569 P6 S0 ; Drive 6 goes backwards W
M584 X0 Y1 Z2 E3 V4 U7 W6 ; Apply custom drive mapping

the pinda is used as the V axis endstop in certain situations during loading so it must be plugged into that axis endstop input. U axis uses sensorless homing

ok no worries are we able to support it at the end of tpre and tfree instead?

@dc42 did you see my post above regarding m291?

@dc42 the m291 isn't unlocking a tool change still when called. Or is this impractical to do within a tool change?

My genuine smart bltouch has repeatability below 0.03. I had some issues which I found to be my z jerk was too high. I assume was during the z axis retract move causing it for me.

I'll push the firmware today and test also. But there's been no changes to M291 is that correct? It didn't unlock movement of the tool change in RC1.

unfortunately theres no change in the behaviour of M291 during a tool change, the message comes up at the instance the m291 is called but the tool change will continue until its finished

I put a fly back diode on my pump and run it from the heater output. Works a charm. I bought an in rush thermistor but haven't installed it and it's been fine so far. Average 7 amps inrush and settles around 1 amp when at speed

@elmoret said in Duet3D-2 New install uncertainties:

@dc42 said in Duet3D-2 New install uncertainties:

I think the reason nobody has ported any other firmware to the Duet is that RRF is so hard toi beat. Whereas RRF has been so successful that others have already ported it to LPC1768/1769 boards, and a port to STM-based boards is under way.

Gotta say I agree with that. No way I'd go back to Marlin after experiencing RRF.

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