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So, should I post this, or should I not ?
Ok I guess I'll post it.
I'd ask you to guess what it is, but it's written on it.

It's awesome work from Logxen, we are making a prototype soon, and it's going to be epic :)

Also, it supports up to 4 extruders/hotends. Now you can stop asking for that. First person to ask for a board with 5 extruders/hotends, gets kicked in the nuts.

Important distinction : this is the Smoothieboard v2 PRO. The Smoothieboard V2 won't have the fpga, the 1/256 stepper drivers, the Edison embedded computer, and many of the other neat features.
The Smoothieboard v2 will pretty much be like the Smothieboard v1, but based on the same Cortex-M4 chip as the Smoothieboard v2 PRO.
Hope I didn't loose you.
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48 commentaires
Dat Chu
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I need to pick up my jaw from the floor. 
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It is like you have access to my credit card info. As soon I I buy a different controller board you announce this... :/
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i see the tmc262 can take up to 60V! can i use my 48V supply with them?
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YES!

:)    6  Extruders would be fun (Protects Nuts)
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+Richard Horne Well you'll have to use external stepper drivers :) Also, BAM
+nick wiegand It's not an announce, more of a sneak peak, it's still very far away :)
+Sirus20x6 The limit for this board will be 24V. It's not just about the stepper driver rating. If it were we'd have 95A mosfet outputs :)
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WOW! Umm, ummm, yes please! I've got a use for that.
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Well hello there future hole in my bank account. I am looking forward to meeting you. 

Seriously though I was talking to a friend about "What if they had a card with this, and that, and that, and this" and you just named most of it. 
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 First person to ask for a board with 5 extruders/hotends, gets kicked in the nuts.
I LoL'd
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Anyone know where I can get the kicad files?
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But also...since it shares the pinout with the papillo wings http://papilio.cc/ in theory you could add one of logxen's wings that has thermistor inputs and fets and a stepper wing and run extra extruders...plus much more if someone was inclined to code it :)
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+Daniel Dumitru Generating steps, generating pwm signals, laser engraving, as a general gpio expander, and even as a logic analyzer for when the M4 is generating steps.
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So you said that M4 will generate steps as well, Will it be a version of
Smoothie just with LPC4337 (no FPGA ?) ?
Isn't LPC4XXX pin compatible with LPC17XX ? MAybe it can be put as drop in
replacement/ugprade!
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+Daniel Dumitru The Smoothieboard v2 is much like the current Smoothieboard, but with the M4 instead of the M3, and with a smaller size.
The Smoothieboard v2 PRO is like the Smoothieboard v2, but with trinamic drivers, the FPGA, the edison port, more ports, a larger size, etc ...
I don't think you can use the LPC43xx as a drop-in replacement.
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FAntastic ! Just tell me when you start to put on git the V2 since I would
like to redraw-it on Kicad and to build myself one !
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+Daniel Dumitru It's already being drawn in kicad, and it will be on github when we do the first prototype ( the routing is not done yet ).
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that's the beauty of Kicad ! when you do the routing , don't forget about
Push'n Spring functionality of Kicad ! Applause to CERN engineers !
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Yeah, I should upgrade to the dev branch before layout. I'm still running Old Stable right now. ><
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Is there a good place to cut the power trace to the tmc262s so I can supply them with 48v and the rest of the board with 24v? 48v is the perfect power factor for my steppers
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It's not quite like that, the tmc262 is just a controller. It drives external mosfets (aon7611) which are are specced at 30V. If I could find 60V mosfets that would fit then you could do 48v ... but there are other things to change out too. Youd want 100v electrolytic caps for example to deal with back-emf
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gotcha I didnt know it used external mosfets but that makes sense with the 4A current rating at the board and the 8A,60v max on the spec sheet online.
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Okay, so 5 extruders isn't allowed.. What about 4.9 extruders??
;)

Actually, I would think the next iteration would factor-out the number of extruders from the board and become agnostic about that... Maybe your board should support 5 extruders and then have an extensible bus to daisy-chain control boards. I use an industrial controller that's built this way. 

Also, please add a pinball machine and a tape cassette player!
^_^

(nice work, btw)
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yeah I don't have a final i/o count yet but there will be multiple "wing" ports from the Papilio project that could be used to add pairs of a4982 at a time. just make to to wear a cup when that cab pulls up outside your house ...
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Logxen - you may found already build binaries for windows at
http://escalalibre.com/edwt/kicad_testingBinaries/
I can barely wait to see it.
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Awesome work! Miles ahead of any controller I've seen... It just needs a nice LCD touch panel to go with it and that's it :)
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It seems like there were no thermal breaks in the ground pads (and maybe Vbb) in V1 of the board (I had a tough time soldering header pins to ground connections).  Please check that there are thermal breaks in this version!  Otherwise, love my V1 and will eventually spring for a V2!
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I'm afraid the lack of thermals is intentional. There are thermals on logic level connectors ... but all the high current power connectors for motors, mosfets, and power input have solid flood connections. This is because the thermal relief will create heat right on the plastic connectors when you multiple amps through them. It can make rework a bit tricky (+Chris Cecil who does our QA and rework suggests using an iron with a large tip) but it also allows the board to run cool when it comes time for it to do its job.
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Nate C
 
Sign me up on this!  Like Raymundo stated a nice touch screen would be great.  Looking forward to getting my hands on one.
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Will this be another kickstarter? I've been waiting for an Arm/FPGA solution, I'm so glad to see Smoothie going down this path!
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Is there a projected release date? My project completion is about two months out and I am wondering if I should wait for a V2.
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AMAZ... sorry, i mean: amazing!
Will USB host be available for Edison to attach webcam?
Any new data about date (year, Q) of release?
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The USB host will be available optionally by using an intermediary PCB.
We don't have a release date or timetable.
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Thank you for info!
What connections Edison port would have?
Only board control port? It is UART or USB?
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Sure you'll be able to upgrade smoothie via the Edison, and to change the settings, and to do everything ...
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+Val Cocora We are not giving any dates ( people got upset when we did not finish v1 in time, so no dates this time ). We are getting ready to assemble the first protos. There is no code ready at all at this point.
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Let me know if you want testers, I love my V1, so I'm sure I'll love the V2
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when is this board going to be available for sale?
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How about a thermocouple controller?  or at least jumpers to bypass the resistors on the thermistor ports making them usable for thermocouple controllers?
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Very nice Arthur. I'm excited about the Smoothieboard 2 Pro!
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nice board!
how about five extruders? :-)
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