RE: What are the pros and cons of adding a RPi Zero W to the Original Prusa i3 MK3S Kit?
[...] Don't forget the converter - lets you run the Pi off the 24 V supply. No extra wires or wall warts.
Hmm. I've read plenty indicating that the Mk3 power supply is barely sufficient to keep up with a printer running at hot nozzle and bed temps. There's also the problem of making the device you're monitoring dependent on the device being monitored. I'm more inclined to run a (relatively) power-hungry RPi 3B off external power (along with all the 12V lighting). I'm eventually going to get around to working up a UBC to consolidate my RPi and lighting power, but keeping it separate from the Mk3.
RE: What are the pros and cons of adding a RPi Zero W to the Original Prusa i3 MK3S Kit?
[...] Don't forget the converter - lets you run the Pi off the 24 V supply. No extra wires or wall warts.
Hmm. I've read plenty indicating that the Mk3 power supply is barely sufficient to keep up with a printer running at hot nozzle and bed temps. There's also the problem of making the device you're monitoring dependent on the device being monitored. I'm more inclined to run a (relatively) power-hungry RPi 3B off external power (along with all the 12V lighting). I'm eventually going to get around to working up a UBC to consolidate my RPi and lighting power, but keeping it separate from the Mk3.
Well I did pick up a Mean Well LRS 350 PS - just in case... It was only $30. Less than the PI.
RE: What are the pros and cons of adding a RPi Zero W to the Original Prusa i3 MK3S Kit?
I definitely want my Pi running off a separate supply. I turn my mk3 off when I'm done, and I don't want to "sudo shutdown" the pi everytime. 99.99% of the time it would be ok just dropping the power on the pi, but that 0.01% of the time can lead to file corruption if it is writing to SD mid-yank.
I leave the pi running 24/7 and can upload files to it from wherever, then print when I get home and turn it on.
RE: What are the pros and cons of adding a RPi Zero W to the Original Prusa i3 MK3S Kit?
One side note, if you swap power supplies, not sure the Power Panic Board inside the OEM supply is compatible ... so at the least plan you'll lose Power Panic restarts.
RE: What are the pros and cons of adding a RPi Zero W to the Original Prusa i3 MK3S Kit?
One side note, if you swap power supplies, not sure the Power Panic Board inside the OEM supply is compatible ... so at the least plan you'll lose Power Panic restarts.
True, maybe.
On my original Mk3 and (I think) older Mk3s’s, they had the silver power supply with the black printed base. This had some reliability issues early in Mk3 days (I lost two in a month before I switched to a meanwell). With that version you could disassemble the bottom of the PSU and switch the power panic board to a new printed base for the meanwell (I put one on thingiverse, there were better remixes).
However, on my new mk3s it’s got an integrated black PSU, no printed bottom. You’d have to open the PSU and I’m not clear the power panic board is easily extractable.
RE: What are the pros and cons of adding a RPi Zero W to the Original Prusa i3 MK3S Kit?
@guy-k2
What pi version are you using
0 3 or 4?
RE: What are the pros and cons of adding a RPi Zero W to the Original Prusa i3 MK3S Kit?
@guy-k2
What pi version are you using
0 3 or 4?
RE: What are the pros and cons of adding a RPi Zero W to the Original Prusa i3 MK3S Kit?
@paul-m27
Hi I'm new here
Did a couple of prints
But want to add pi
From these post I'm convinced to use the pi 3 or 4
But can someone helpme in how to add its designated power and how to hook it up please ty
RE: What are the pros and cons of adding a RPi Zero W to the Original Prusa i3 MK3S Kit?
@recovery
The simplest approach is just to use a separate power supply for the Pi. For my Pi 3 I found that the USB-to-micro usb cables can be pretty sensitive, and I did see a bunch of under volt/throttling in the Octoprint UI. While my generic phone charger worked well, I’d reco stick with an ‘official’ pi power supply for stability, at least with the 3’s. I very recently upgraded to a Pi 4 (2Gb) and it’s been much more stable for me, using an Apple USB-C iPad charger. But again, that’s just my experience. I think 3b, 3b+, and 4 are all winners, even if you add a camera.
I’m not sure about the “how to hook it up portion” of your question... but the Pi gets powered by a USB port on the longer edge. Micro USB for the 3’s and USB-C for the 4’s. I wouldn’t recommend powering it from the Prusa’s power supply. So you basically plug it in like your phone. A usb cable hooks the pi to the printer. The one that came with it for flashing firmware will do, but a right-angle on the printer’s end is a lot cleaner looking.
If you want to attach the pi to the printer, there are hundreds of printable designs out there. I’m partial to my own, obviously. https://www.prusaprinters.org/prints/36102-pi-4-case-for-prusa-mk3mk3s
https://www.prusaprinters.org/prints/1668-pi-3b-case-for-prusa-mk3
When someone asks you if you're a god, you say, "YES!"
RE: What are the pros and cons of adding a RPi Zero W to the Original Prusa i3 MK3S Kit?
Pi 3B+ boards on my Prusas. I started with a zero, but very quickly switched to 3B+ boards to allow more CPU headroom with continual webcam usage. Also added cooling fans to my Pi's.
RE: What are the pros and cons of adding a RPi Zero W to the Original Prusa i3 MK3S Kit?
Just like @paul-m27 I keep the pi's on 24/7 on their own power supplies.
RE: What are the pros and cons of adding a RPi Zero W to the Original Prusa i3 MK3S Kit?
@joe-m14
Great Joe
Thanks a lot
RE: What are the pros and cons of adding a RPi Zero W to the Original Prusa i3 MK3S Kit?
Leave the EINSY box alone. You won't access that for a Pi 3B+
That will attach via USB.
The Pi will go into a separate enclosure box that you will mount to the printer frame above the EINSY. It does not replace the EINSY.
What "buck adapter" are you talking about? I'm looking at everything I'll need to get OctoPrint on a Pi4 with camera, but not sure what adapter you mean.
RE: What are the pros and cons of adding a RPi Zero W to the Original Prusa i3 MK3S Kit?
A buck converter converts the 24 volts from the Prusa PSU to 5 volts for the Pi. With a buck converter connected to the Prusa to run the Pi, the Pi will turn on and off with the Prusa.
I like to use the Pi separate from the Prusa and just use a normal power supply for the Pi. That way you can shut down the Prusa without having to shut down the Pi first.