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
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!
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
RE: MMU2s electronic - Where to find schematic?
Ich bin zwar kein Moderator, aber hier sind wir im deutschen Forum. 😉
Gruß Kai
Wer freundlich fragt bekommt auch eine freundliche Antwort.
nec aspera terrent
RE: MMU2s electronic - Where to find schematic?
@kai-2
Entschuldigung. Hab ich übersehen.
Vielen Dank, Harald
RE: MMU2s electronic - Where to find schematic?
👍
Wer freundlich fragt bekommt auch eine freundliche Antwort.
nec aspera terrent
RE: MMU2s electronic - Where to find schematic?
@harrysatt
Schaltpläne, Firmware, Druckteile und Ähnliches zu den Prusa Konstruktionen findest Du hauptsächlich auf den Github Seiten.
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.
RE: MMU2s electronic - Where to find schematic?
Bin auch schon gespannt. Denke aber es könnte funktionieren. Bis bald, Harald
RE: MMU2s electronic - Where to find schematic?
You can also try this small addon for the buffer, that prevents the filament to come out:
