Prusa MK3S Einsy Rambo Raspberry PI 4 with 2,5" SSD

Prusa MK3S electronic box for:

• Original Einsy Rambo Board
• Raspberry Pi 4
• 2,5 inch HDD
• 2x DC/DC convertor (24V to 5V and 24V to 12V)
• 9x Optoisolated MOSFET switch for vent controll, LED strip, Print head light

(second dc/dc and 6x MOSFET module placed on first holder, 3x MOSFET module on second holder)

• Housings for dupont connectors for external connections

On raspbery PI 4 the SD card is used for boot partition only, all other is on SSD, connected via USB/SATA converter

8 pins used for Waveshare touch display (+5V, +3,3V, GND, TP_SI, TP_SO, TP_CS, TP_IRQ, TP_SCK)

1x hdmi output dtto

9 GPIO pins used for output to MOSFETs (GPIO 18 for Gcode SuperLaserController plugin for octopi, GPIO 5 for vent - controlled by PID, temperature reads from processor, GPIO 6,12,13,19 - Led strip R,G,B,W, GPIO 16,26 - Print head light ring (digital led, the white only I don't found), GPIO 20 - enclosure vent

GPIO 21 - input from Humidity and temperature sensor (enclosure)

Pins for Einsy Rambo comm. (header J19) GPIO 14,15 (J19/6,8) - rxi, txi, GPIO 22 (J19/13) reset printer, GPIO 23(J19/14) - power loss signal

CSI - camera

USB - second camera for print head

USB - Sata converter

Custom support for box and cover included, import to slicer as support.

BOM:

USB to SATA - http://s.click.aliexpress.com/e/doQTUxhq type.04

FAN - http://s.click.aliexpress.com/e/s5JVuVVI

DC/DC converter - http://s.click.aliexpress.com/e/tsSxhIWy

MOSFET module - http://s.click.aliexpress.com/e/dpUb9Vuc

Nylon screws and nuts - http://s.click.aliexpress.com/e/OcDgXSxI

Additional fuse - http://s.click.aliexpress.com/e/KSbx5EBA medium size

Wire connectors (or Wago 221 from local shop) - http://s.click.aliexpress.com/e/m9R2rLqY

Led strip for enclosure light - http://s.click.aliexpress.com/e/B5N7EI3Q

LED ring for print head light - http://s.click.aliexpress.com/e/DPBPl6XA

Print Settings

Printer Brand:

Prusa

Printer:

I3 MK3S

Rafts:

Doesn't Matter

Supports:

Yes

Filament: PM (Plasty Mladeč) PETG Post-Printing =============

If want use DC/DC converter located on Raspberry holder then assembly it with NON metal only M2,5 screws.