I was searching for a control box to fit my MKS GEN L, Raspberry Pi 3B. Plus, I wanted to be able to still easily connect a usb cable to both the MKS GEN L and the Raspberry Pi.
I did not find such a box, so I decided to create it on my own as my very first fusion360 project. While I was at it, I decided to incorporate a cable chain connection for the heated bed. It replaces the cableChain_40MountSide from the cable chain at https://www.thingiverse.com/thing:2920060. You can now connect the cable chain directly to the control box.
The left control box also holds an opening in the bottom to feed through a cable to the PiCam. The result is here: https://www.thingiverse.com/thing:3502425
I am now upgrading to TMC2130 stepper drivers in SPI mode. For this purpose, the box is too low for the spi cables and a fan from above. Even without the spi cables you probably need more space for the heat sink. I therefore created an XL version.
Please note 1:
- You will need to use feet under the frame in order to lift the frame up 20mm. As most people have damper feet anyway, this should not be an issue.
Please note 2:
- There are two versions for the left cover depending on whether or not you use the y-axis limit switch (possible to do sensorless homing with TMC2130's)
All shoud fit snugly as the dimensions are the same as my previous upload.
Some Ender-3's have the connection for the stepper motor cable on the bottom, in that case you will have to unscrew the stepper motor and turn it so the connection is at the back and doesn't get in the way of the cover.
If you are switching to the new SKR V1.3 32-bit board, check out my modification for that board: https://www.thingiverse.com/thing:3558321
Fusion360 file included.
- Remove supports
- Temporarily remove y-axis endstop and y-axis stepper motor bracket
- Slide box in rail
- MKS Gen L can be fitted with original board screws from the Melzi board
- Raspberry Pi 3B slides over the mounting points
- Slide in a 40x40x10 fan
- Covers are put in place with 2x M3 and at the back with a M3 with M3 t-nut (if you don't have them, you can print them: https://www.thingiverse.com/thing:3050607)