Customisable Prusa i3 MK2 Rambo / Controller case - BASE by slippyr4

Last crawled date: 3 years ago

You need firmware??
If you're building a MK2 clone with a RAMPS based board, you've got yourself a MK42, then you might want to run a port of the prusa firmware. See https://github.com/slippyr4/Prusa-Firmware
What is this?
This is a customisable, parameterised rework of the Original Prusa i3 MK2 case. Find the original in Prusa's github repository at https://github.com/prusa3d/Original-Prusa-i3/tree/MK2
The original SCAD is designed around the Rambo Mini 1.3 board and I wanted to use a different board. So i've reworked the SCAD file to make the board dimensions into parameters so it can work with a lot of different controller boards.
You need to enter the length and width of the PCB of your controller board, and the offset from the board edge to the mounting holes. There are two more parameters which are optional - top gap - which adds extra spacing between the PCB and the top of the case. That's not needed on the RAMBO mini, but a value of 6 works well for MKS boards. There's also an HBP offset parameter which optionally moves the HBP cable entry assembly up or down. This was needed for the MKS base because the original location of the HBP cable entry fouled the USB socket.
The RAMBO mini has the USB cutout on the top edge, that's deleted from this design. I've not added the facility to put a new cutout for your board in this customiser. You could download the SCAD and do it yourself, or just get handy with a scalpel when you've printed it.
I recommend you print in PETG if you can, but any plastic would do.
If you print this you will also need to print the DOOR (see https://www.thingiverse.com/thing:2370625) and also the hinges (which are unchanged from the prusa original). When customising the DOOR part, use the exact same values for the parameters as here, or it won't line up and fit.
To help you out:-
MKS SBASE

Board Length 146.5
Hole Offset 4
Board Width 95
Top Gap 6
HBP Offset 0

MKS Base

Board Length 110
Hole Offset 5
Board Width 90
Top Gap 0
HBP Offset -6

RAMBO mini

Board Length 103
Hole Offset 4
Board Width 69
Top Gap 0
HBP Offset 0