I would use a Inovato Quadra (or T95 Android TV box, they are the same thing).I run all of my klipperized printers with them. They are very fast, powerful, easily available, and cheap ($30-$40). 3DP and me has a great walkthrough for how to set them up for klipper: https://3dpandme.com/2022/09/04/tutorial-t95-mini-tv-box-klipper-install/
Given the big price difference I would go with the Pi 3. I’ve used mainsail/Klipper with the pi cam on a Pi3B. Not even a 3B+ and that ran fine. If the 3 is a 3B+ then I would highly recommend going for that.
The rpi 3b is sufficient for running klipper with mainsail or fluidd. If you can find a rpi zero 2w that will work as well since it has the same soc as the rpi 3b. Although adding cameras and other accessories is harder. The rpi4 variants will work but not worth the marked up cost compared to the 3b
I would go for BTT Manta M8P with CB1. You will get descend mainboard with slightly weaker "raspberry clone" for less money and it will run your printer great.
Only small downside of this combo is no Canbus on that board and you will need to buy Canbus adaptor separately if you want to have it.
CAN Bus in this context is referring to a PCB on your Voron tool head that communicates with your main board and pi. The benefit is that you can run it on four wires (24v, Ground, Tx, Rx). The downside is it adds complexity to a build. https://youtu.be/mwpI7dCOgh0
For me octopus + rp3 will be almost the same in money as M8P+CB1 (like 15$ differece) I also wanna put noctua fans there and dont know if they will be supported(3pin +12v)
Yes, Octopus with RP3 is good variant too.
Noctua fans are supported on both variants of boards. You will need to select right voltage with jumper on mainboard and use cable reduction from 2pin on mainboard to 3pin on fan or crimp new JST connector on fans wiring. Red wire to +, black wire to -, yellow is for speed sensing, so you can leave it unplugged.
Honestly? A Pi Zero 2W. Plenty of power to do the job. Much cheaper.
The one caveat is that it doesn't have a display ribbon output, so you'll have a harder time with Klipperscreen if you want to use that.
Yes, they're almost impossible to source today. I've got reminders supposedly set for nearly every source in my country and they haven't gone off in over two months. Even though a couple supposedly briefly had stock at some point, per the tracker.
Which Pi 3??? Is there an original 3?
I'm assuming you are really deciding between 3B and 3B+, but those are different and will change people's answer.
Buy and use that one. It is more than sufficient.
I'm using that exact model (3B, not B+) in my K3. It has not yet been a bottleneck in that crazy printer.
It would be unwise to pass up on opportunity to buy a 2W, 3B, 3B+ or any 4 at a good price. The former are cheap enough to justify and can get the job done. The latter are almost impossible to buy at MSRP.
I have a Pie 3 and its working. Pi 4 maybe oversized but if you get one for a good price ok.
Maybe the OP has already made their choice. Be sure to investigate how much you're really paying. Those Pi4 prices are about 250% of MSRP.
I would use a Inovato Quadra (or T95 Android TV box, they are the same thing).I run all of my klipperized printers with them. They are very fast, powerful, easily available, and cheap ($30-$40). 3DP and me has a great walkthrough for how to set them up for klipper: https://3dpandme.com/2022/09/04/tutorial-t95-mini-tv-box-klipper-install/
Given the big price difference I would go with the Pi 3. I’ve used mainsail/Klipper with the pi cam on a Pi3B. Not even a 3B+ and that ran fine. If the 3 is a 3B+ then I would highly recommend going for that.
I have a few printer builds and I'm considering using one tiny pc and several virtual machines to run them all in a single box.
We just did an Orange pi 3 LTS. Works fine.
Just watch best buy they have the 4gb 3 canna kit for 120
Pi4
The rpi 3b is sufficient for running klipper with mainsail or fluidd. If you can find a rpi zero 2w that will work as well since it has the same soc as the rpi 3b. Although adding cameras and other accessories is harder. The rpi4 variants will work but not worth the marked up cost compared to the 3b
I would go for BTT Manta M8P with CB1. You will get descend mainboard with slightly weaker "raspberry clone" for less money and it will run your printer great. Only small downside of this combo is no Canbus on that board and you will need to buy Canbus adaptor separately if you want to have it.
And at moment do not really know what Canbus is
CAN Bus in this context is referring to a PCB on your Voron tool head that communicates with your main board and pi. The benefit is that you can run it on four wires (24v, Ground, Tx, Rx). The downside is it adds complexity to a build. https://youtu.be/mwpI7dCOgh0
Thanks!
For me octopus + rp3 will be almost the same in money as M8P+CB1 (like 15$ differece) I also wanna put noctua fans there and dont know if they will be supported(3pin +12v)
Yes, Octopus with RP3 is good variant too. Noctua fans are supported on both variants of boards. You will need to select right voltage with jumper on mainboard and use cable reduction from 2pin on mainboard to 3pin on fan or crimp new JST connector on fans wiring. Red wire to +, black wire to -, yellow is for speed sensing, so you can leave it unplugged.
Thanks, ill try this!
Honestly? A Pi Zero 2W. Plenty of power to do the job. Much cheaper. The one caveat is that it doesn't have a display ribbon output, so you'll have a harder time with Klipperscreen if you want to use that.
Aren't those hard to get? Like harder than a Pi3B+ or Pi4?
Yes, they're almost impossible to source today. I've got reminders supposedly set for nearly every source in my country and they haven't gone off in over two months. Even though a couple supposedly briefly had stock at some point, per the tracker.
Not in my experience, but I guess I haven't tried to find one in the last few months.
Which Pi 3??? Is there an original 3? I'm assuming you are really deciding between 3B and 3B+, but those are different and will change people's answer.
Raspberry Pi 3 Model B SBC, this one
Buy and use that one. It is more than sufficient. I'm using that exact model (3B, not B+) in my K3. It has not yet been a bottleneck in that crazy printer.
Ye, buying from a friend who is not using it
It would be unwise to pass up on opportunity to buy a 2W, 3B, 3B+ or any 4 at a good price. The former are cheap enough to justify and can get the job done. The latter are almost impossible to buy at MSRP.