Dual Extruder set-up: SMCNC V4 ROSTOCK / Duet2

Dual Extruder set-up: SMCNC V4 ROSTOCK / Duet2

Postby nurbie » 26 Jul 2019, 16:11

Hello KISSters!
LOVE KISSlicer for all single extruder work; converted to dual and now . . . LOST.
Super-n00b lost.
SMCNC V4/Duet2 wifi/2:1 Y-bowden dual extrusion kit
According to the SMCNC CURA setup you pull the filaments away from the Y-connector 40mm to start.
This would imply that something then tells the machine to push/pull the filaments accordingly.
Not sure if I need to modify KISS, Duet config, or BOTH?

I've got KISS generating a test with short pillar:
Screen Shot 2019-07-26 at 3.28.05 PM.png
Screen Shot 2019-07-26 at 3.28.05 PM.png (77.94 KiB) Viewed 254 times

When I run my KISS'ed stl the filament feeds as if it were running from 2 separate HEs ready to feed, not rapidly feeding E0, then retracting/feeding E1
I just don't know where to start with the whole retraction/feed issues

Guessing magic has to happen here:
Screen Shot 2019-07-26 at 4.04.08 PM.png

and here:
Screen Shot 2019-07-26 at 4.04.20 PM.png

There must be some documentation somewhere on how this is achieved as you guys have been doing multi-extruder prints for at least 2years, right?

Hopefully I can lure Hackney(HA!)
get it?
tug, tug, tug

Thanks in advance!!

I got the Printer and Extruder settings from SMCNC for CURA, so if I put them into KISS correctly they should work(?)
Can anyone point out the correct KISS locations for these?
Artemis_machine.jpg (95.45 KiB) Viewed 253 times

Artemis_ext_01.jpg (97.24 KiB) Viewed 253 times

Artemis_ext_02.jpg (95.45 KiB) Viewed 253 times

I've got this so far:
I just learned that I couldn't revert out of the changes I made and when I reset to default it wiped out what there was...
Posts: 5
Joined: 26 Jul 2019, 12:57

Re: Dual Extruder set-up: SMCNC V4 ROSTOCK / Duet2

Postby pjr » 27 Jul 2019, 03:37

There's really 4 sections of the Printer G-code that you need to use which relate to the filament handling during the loading and unloading:

Select New Extruder & Warm
Cool & Retire Old Extruder

Obviously Prefix and Postfix sections are used only once at the start and end of the print.

If you download my Prusa Mk2 + MMU settings from the main site (in the FTP folder "KISS V2 MMU Profiles"), I think that should be a good starting place for you.

Note that I keep the extruder moving over the purge tower during unload/load to prevent blobs.

Please note: I do not have any affiliation with KISSlicer. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage or loss.
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Re: Dual Extruder set-up: SMCNC V4 ROSTOCK / Duet2

Postby nurbie » 27 Jul 2019, 09:08

Thx Peter, I'll look at those.


sounds of sleeves rolling up
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Joined: 26 Jul 2019, 12:57

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