Instructions | MPSM V2 Direct Drive for 2.85/3.00mm Filament

1

Replace the stock mainboard with the RAMPS/Mega boards

https://www.instructables.com/Replace-Monoprice-Select-Mini-Controller-With-Ardu/

Ensure that the LCD display cables come out of the bottom of the housing, at the front of the case.
2

Set up the RAMPS board for UART with the TMC2208 stepper drivers

https://www.instructables.com/UART-This-Serial-Control-of-Stepper-Motors-With-th/

See the yellow and blue wires and the 1k resistors below
3

Replace the hotend

Use the same mounting hardware as the 1.75mm hotend
4

Attach the Orbiter Extruder

Use 2x M3x20 screws (button or socket head). Washers are recommended, but not required.
5

Make an extension cable for the orbiter extruder motor

Ensure that the male end is accessible from the top of the printer, to allow the extruder motor to be swapped out easily
6

Remove the front of the Z-axis tower to route the printhead and extruder cables.

Zip tie the cables (not pictured) to prevent interference with the Z-axis movement
7

Re-attach the Z-axis tower front cover
8

Print an offset spacer for the X-carriage

Secure using 1x M3x10mm screw (button or socket head). This will ensure that the extruder will not contact the Z-axis tower before the X-axis endstop is triggered. See the blue part pictured below.
9

Print the LCD panel mount
10

Secure the LCD panel to the mount

Use 4x M3x10 screws threaded directly into the plastic. Button head or socket head are suitable

MPSM V2 Direct Drive for 2.85/3.00mm Filament