4040 Raspberry Pi Case with 40mm Fan

thingiverse

I needed a fresh case for my new Raspberry Pi3B+, which also supported a 40mm fan. I wanted the case to fit snugly between the Geeetech A10's display and the Y extrusion, mounting securely to the side 4040 extrusion. So, I discovered giacomo30196 design. **I really liked the design, but it had a few issues for me:** 1. You cannot fit the fan inside the case if your Pi has heat sinks (or at least the taller ones I have, <a href="https://amzn.to/2GLaKiT" target="_blank">these</a>), so I raised the model by 14mm. 2. The fan grill didn't match the rest of my grills on my machine. I am using mightynozzle's Aperture grills for all my fans. 3. I don't need access to my GPIO pins. 4. I needed a hole in the back, to allow for a power wire for the 4010 24 volt fan I am using. I am powering the fan from the PSU of the printer, so that it only runs when the printer is on. 3. The 4040 extrusion mount needed to be moved lower, to accommodate the taller design. So, I came up with this design. **There are 2 lower pieces to choose from:** - Lower-no_cam: This does not have an extra slit for the Pi cam ribbon - Lower-with_cam: This has a slit to pass the Pi cam ribbon cable from the front, instead of having it come out the top (see other option in upper pieces) **There are 4 upper pieces to choose from** (all have the 40mm fan mounting): - Upper-no_gpio-no_cam: No slits for camera or the gpio - Upper-no_gpio-with_cam: No slit for gpio, but a slit for the Pi cam (choose whether you want the Pi cam wire to come from the top or from the front of the lower piece) - Upper-with_gpio-no_cam: Slit for gpio, but not for cam - Upper-with_gpio-with_cam: Slit for both the gpio and the cam The Pi fits in VERY SNUG and will take some maneuvering to get it in. But, once it's in, it's a great fit. Even though I am using this on a Geeetech A10 (v3), it should fit an Ender 3, or any printer that has 4040 extrusion it can attach to. **Please note:** Your printer must have some sort of feet, or something to raise it off the table it sits on. Otherwise, the bottom vents are pretty much useless. **Parts needed:** - Four flat cap M3 hex screws x 12mm (for pull) or 16mm (for push) - Four M3 hex nuts (for fan) - A 4010 fan (I used this 24 volt fan, which runs from my printer's PSU. I used <a href="https://amzn.to/2VgPm90" target="_blank">this one</a>) - Four flat cap M3 hex screws x 8mm (for Pi) **Bill of Materials:** - <a href="https://amzn.to/2U5jUdZ" target="_blank">iExcell 250 Pcs M3 x 6mm/8mm/10mm/12mm/16mm Stainless Steel 304 Internal Hex Drives Flat Head Cap Screws Kit</a> - SoundOriginal 40mm fan, pick your voltage (ensure to get dual ball bearing type): -- <a href="https://amzn.to/2VgPm90" target="_blank">24v</a> -- <a href="https://amzn.to/2E8kUqM" target="_blank">12v</a> -- <a href="https://amzn.to/2H11yaa" target="_blank">5v (you may need to chop the USB plug)</a> Happy to report that my Pi now runs at 32 c, while printing :) **Please note:** Links in BOM are for my Amazon affiliate account. I would highly appreciate it if you could use these links, if buying from Amazon. No pressure, but it would surely help me buy me a cup of coffee. Or, if you prefer to drop me a cup of coffee via <a href="https://paypal.me/nordicblue" target="_blank">Paypal</a> :)