FluiddPi Klipper config for Monoprice Select Mini v2
This is just an initial disorganized jotting down some of the details of how I modded a Monoprice Select Mini v2 to run klipper, with a pi zero 2w built inside the base. It's not a thourough recipe, sorry. But it is the key details between some config files and some pics.
PI Zero 2 W running FluiddPI for the OS, Klipper, Fluidd, etc.
Hardware Mods
https://amazon.com/dp/B09D9DJV5V extruder
https://thingiverse.com/thing:3731400 part cooling duct - printed in SLS by Jawstec via CraftCloud
https://amazon.com/dp/B08T189FX2 50x15 part-cooling blower
https://amazon.com/dp/B07PYWVPMY 40x20 heat-break fan
Chassis fan wired directly to power supply instead of controller board
Both fan headers on controller board are now used for the separate heat-break and part-cooling fans.
Both heat-break and part-cooling fans are controllable, and the chassis fan runs all the time power is on.
https://amazon.com/dp/B018RE4CJK meanwell 150W psu
mounted on spacers to leave 6-8mm gap between psu and bottom plate, to let air in through the bottom grill
https://www.pishop.us/product/raspberry-pi-zero-2-w-starter-kit/ (just to get the pi zero 2w)
https://amazon.com/dp/B09BJCVYSN ethernet & usb adapter for pi zero - not a hat, connects by pogo pins to usb contact pads, and leaves gpio header free
https://amazon.com/dp/B09PVDVQRJ pi zero heat sink
https://amazon.com/dp/B07BDF7ZP9 step-down buck converter - 12v to 5v to power pi zero
https://amazon.com/dp/B08YN7Z9Y3 lighted blue rocker power switch for front panel
https://amazon.com/dp/B0895T9NXF power inlet port with fuse and switch for rear panel
https://www.th3dstudio.com/product/tough-tube-high-temp-high-tolerance-ptfe-tubing/ better bowden tube
lcd & knob removed and replaced by blank plate since klipper can not use the stock lcd, also makes more room for the psu
PSU, buck converter, pi zero2w, ethernet/usb board, all mounted inside base with stock controller board
Controller connected to pi by uart from the LCD header on the controller to the GPIO UART0 pins on the pi
just tx,rx,gnd, the 3.3v pin not connected (connector type JST-PH)
serial console login disabled in pi config
klippy firmware built to use USART1 (the LCD header)
see comments in printer.cfg
