Schematics for the mini and discussion here
https://github.com/prusa3d/Buddy-board-MINI-PCB/blob/master/rev.1.0.0/BUDDY_v1.0.0.pdf
So it looks like the spade terminals are for a switch not power in, although you could technically feed power into one of the spades.
Also interesting is the RFID chip ST25DV64K and what looks like a coaxial connector on the board, suspect this could be for future RFID filament reels to automatically set temperatures etc.
Normal people believe that if it ain’t broke, don’t fix it. Engineers believe that if it ain’t broke, it doesn’t have enough features yet.
RE: Schematics for the mini and discussion here
FETS are rated for 131W of power https://assets.nexperia.com/documents/data-sheet/PSMN2R6-40YS.pdf
Normal people believe that if it ain’t broke, don’t fix it. Engineers believe that if it ain’t broke, it doesn’t have enough features yet.
RE: Schematics for the mini and discussion here
5v on board supply capable of 2A : LM25011MY/NOPB
Normal people believe that if it ain’t broke, don’t fix it. Engineers believe that if it ain’t broke, it doesn’t have enough features yet.
RE: Schematics for the mini and discussion here
A 3A fuse for the motors and 5v drop down regulator and a 7.5A fuse for the heated bed.
Normal people believe that if it ain’t broke, don’t fix it. Engineers believe that if it ain’t broke, it doesn’t have enough features yet.
RE: Schematics for the mini and discussion here
was woundering about the antenna connection, too. smells like prusa is going to think about a way away from open source and hardware. the "RDM" mechanism on the board to break away is such a thing, too. they building up their prusament production, no big thing to ad an RFID to it for the incoming MK4 and prusa XL...
its only guessing, but looks like they are targeting the beginners marketing, the "noob user section" and use their reputation and image to spread out there. prusaprinters gcode download, this thinking abput rfid spools with some kind of auto configuration.
i dont know if i like this idea, of course, its only speculation.
RE: Schematics for the mini and discussion here
"suspect this could be for future RFID filament reels to automatically set temperatures etc."
How cool would that be! Not necessary, but cool never the less.
Odd coincidence, I was wondering while on throne, how to read a RFID button on a reel. I guess if you put it as near the center and use a reader with enough range.
RE: Schematics for the mini and discussion here
Chipped filament idea is not new with RepRap either: https://reprap.org/wiki/Filament_spool#Standardisation_for_labelling or https://reprap.org/forum/read.php?1,632285 Ultimaker also chips their original spools, just compared to Makerbot and XYZ they are not preventing you from use of third party filaments. They are now inviting third party filament makers to their ecosystem. There is a potential to build some kind of standard, where information about print settings for that specific filament gets communicated back to slicer. Yes, there is also a potential of lockdown, I hope it does not go that way.
RE: Schematics for the mini and discussion here
As temps/material/colour are set by the slicer, it would be a nice check if the RFID of the spool could be compared to the values in the sliced item about to be printed.
RE: Schematics for the mini and discussion here
I would rather like RFID for the sheet. Automatic Live-Z adjustment based on the sheet used :).
It would make sense to target the bigger consumer market. For this you have to solve the "easy to use" problem. Right now there are closed source solution already available where you can select something even on your smartphone. Hit print and hold the object after couple some time. If we could have the same thing open source, that would be really cool. Where you could get the Press-One-Button experience and at the same time modify whatever you want and use the printer however you want.
Often linked posts:
Going small with MMU2
Real Multi Material
My prints on Instagram
RE: Schematics for the mini and discussion here
i see problems with the sheet and rfid. the rfid would be surounded by magnets...
RE: Schematics for the mini and discussion here
Sorry guys, but the ST25DV64K is just a NFC tag, so yes, it can communicate with your smartphone (for example), but it doesn't work like RFID/NFC Reader.
It can be usefull, if you want to read/write a few data from/to your printer 🙂
RE: Schematics for the mini and discussion here
I wonder what this could be used for?, maybe identification in a print farm?, possibly only used for testing inhouse so same board, different firmware or some other difference, this could be used to identify which board is connected and whatever it is connected to could then use different parameters or test routines?.
I can't see how this would be of any use to most of us, the end users.
Anyone got an RFID dev kit with plugin antenna. Connect it up and place your phone with NFC app on it to see if there is anything programmed?, no real purpose, just curiosity 🙂 .
Normal people believe that if it ain’t broke, don’t fix it. Engineers believe that if it ain’t broke, it doesn’t have enough features yet.
RE: Schematics for the mini and discussion here
@chocki
Actually I have rich experience with RFID / NFC development. So when I get MINI, I can play with it.
RE: Schematics for the mini and discussion here
@neolker
Did you ever do any rfid testing on the buddy board?
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