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MMU2s electronic - Where to find schematic?  

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HarrySatt
(@harrysatt)
Eminent Member
MMU2s electronic - Where to find schematic?

Hi there

I am bored by the buffer currently used for the MMU2S. It often happens that the filament does not stay inside the buffer but is transferred out and makes a mess around the filament spool. I would like to build a shutter that prevents all filaments to be pushed back out of the buffer.

Therefore I am looking for a pin in the electronic signaling the push back off the filament. I think of using a solenoid for closing a bar in case of the filament is pushed back. I tried some other solutions but all are not suiting well. There is one with a clutch that works well but is really loud so I do not want to use it at night.

So I would need the schematic or description of all pins. Maybe there is a test pin where I can get this information from and also the available power outputs and ratings.

Does anybody know where to find that?

Regards, harald

Posted : 26/04/2021 7:22 am
Clarmrrsn
(@clarmrrsn)
Honorable Member
RE: MMU2s electronic - Where to find schematic?

Think this is what you are looking for.

https://github.com/prusa3d/MM-control-2.0/blob/master/rev.03/MM-control.pdf

Tank you very much!...
Posted : 26/04/2021 7:37 am
HarrySatt liked
HarrySatt
(@harrysatt)
Eminent Member
Topic starter answered:
RE: MMU2s electronic - Where to find schematic?

Hi

thanks a lot. This is 100% what i need first. as far as I see I could use P6 - Shift out connector and mimic the shift register cicuitry. What would also be nice to know the used protocol. I could figure that out but, yes, it is easier to see the definition. Do you or someone else has a hint.

Regards, Harald

Posted : 26/04/2021 7:56 am
Kai
 Kai
(@kai-2)
Noble Member
RE: MMU2s electronic - Where to find schematic?

Ich bin zwar kein Moderator, aber hier sind wir im deutschen Forum.  😉

Gruß Kai

nec aspera terrent...
Posted : 26/04/2021 8:02 am
HarrySatt
(@harrysatt)
Eminent Member
Topic starter answered:
RE: MMU2s electronic - Where to find schematic?

@kai-2

Entschuldigung. Hab ich übersehen.

Vielen Dank, Harald

Posted : 26/04/2021 8:17 am
Kai
 Kai
(@kai-2)
Noble Member
RE: MMU2s electronic - Where to find schematic?

👍

nec aspera terrent...
Posted : 26/04/2021 8:24 am
karl-herbert
(@karl-herbert)
Illustrious Member
RE: MMU2s electronic - Where to find schematic?

@harrysatt

Schaltpläne, Firmware, Druckteile und Ähnliches zu den Prusa Konstruktionen findest Du hauptsächlich auf den Github Seiten.

https://github.com/prusa3d

Gutes Gelingen zu Deinem Vorhaben!

Falls Du das Werk dann vollendet hast, wären wir natürlich neugierig auf die Lösung 👍 

Schöne Grüße,

Karl

Statt zu klagen, dass wir nicht alles haben, was wir wollen, sollten wir lieber dankbar sein, dass wir nicht alles bekommen, was wir verdienen....
Posted : 26/04/2021 12:56 pm
HarrySatt
(@harrysatt)
Eminent Member
Topic starter answered:
RE: MMU2s electronic - Where to find schematic?

Bin auch schon gespannt. Denke aber es könnte funktionieren. Bis bald, Harald

Posted : 26/04/2021 2:29 pm
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