KickPi K2B Development Board Case w/ 40mm Fan

KickPi K2B Case w/ 40mm Fan

This is a case for the KickPi K2B Development Board: https://www.kickpi.com/product/k2b/ which is available from Amazon here: https://a.co/d/7kwtqUZ (Price fluctuates. I bought mine @ $26.59 USD, FYI)

Technically I created this design from scratch, however, I HEAVILY copied John_Sinclair's homework to the point that I would consider this model to be a remix of his Raspberry Pi 4 Case on Thingiverse: https://www.thingiverse.com/thing:3723481

Note that this case makes no accommodations for the Wi-Fi antenna. That's because I'm only using my K2B as a Pi-Hole, so it's only ever going to be hardwired into my network. I'm not sure the AllWinner H618 chip that's present on this board is powerful enough to serve as anything other than a Pi-Hole, frankly.

If you have a need for the Wi-Fi antenna, let me know and I can make a revision. Either that or make a remix yourself, or figure it out on your own. If you're buying an alternate SBC like the K2B, and you own a 3D printer, then you're probably technical enough to figure that out yourself.

If there are any other modifications or improvements that you think can be made, please let me know! I'm confident in calling this V1.0, but I'm happy to make V1.1 and so on if there is demand. I'm relatively novice at CAD (you might be able to tell by how sloppy this model is) so any and all feedback is much appreciated!

Additional Materials Required

• 4x: M3*8mm screws (https://a.co/d/6KCooCd)
• 4x: M3*4*5mm brass heatset inserts (https://a.co/d/1uIy055)
• 40mm Fan. I bought these: https://a.co/d/alMMDxE since I needed more than one, however they are kind of loud. If noise is a factor, then I'd recommend a Noctua fan: https://a.co/d/gq2Uvkq Just note that if you do get the Noctua, you'll have to figure out how to split the wires apart, since the K2B GPIO pins don't have a 5v pin next to a ground pin. You can see in the photos where I have the fan wires connected.
• OPTIONAL: Single board computer heatsinks (https://a.co/d/iYGrHfc)
• Obviously, you will also need the K2B and an SD card.

Print Settings

Just like John_Sinclair's model, print using these settings:

• Infill: 35% Hexagonal
• Perimeters: 3
• Top layers: 0
• Bottom layers: 0
• Supports: Unnecessary
• Brim/Raft: Unnecessary
• I printed w/ .2mm layer height and a .4mm nozzle but could probably be printed with larger numbers than those.

Assembly

1. Press in the heatset inserts into the top part of the case. Do this carefully, as two of the insert holes have very thin walls on one side.
2. Press in the 40mm fan. Should be a very snug pressure-fit.
3. Remove the standoffs that come pre-installed on the K2B board.
4. Attach fan cables to K2B GPIO pins
5. Place board upside-down in the top part of the case, lining up the holes with the brass inserts.
6. Place bottom part of case on top, aligning screw holes.
7. Screw in screws.

Copied this design heavily to make a case for a KickPi K2B single board computer, instead of a Raspberry Pi 4.