HiFi-Pi

thingiverse

The ultimate solution for your Headless Raspberry Pi with Display/Volumio-Pi/MPD-driven mediaplayer quest! Behold, the HiFi-Pi! **What is the HiFi-Pi Case?** A smartly designed case that snaps together seamlessly, perfect for wall-mounting. With all essential I/O ports neatly arranged at the bottom and just the necessary connectors on the outside - power and audio, you'll love how sleek it looks. **Required Tools and Materials:** 1. A Raspberry Pi (Model B is recommended; B+ might also work, but untested) 2. A USB DAC (This one from Amazon works great, I used the following model: [http://www.amazon.com/gp/product/B00BBCXVG6/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1](http://www.amazon.com/gp/product/B00BBCXVG6/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1)) 3. A display (STLs are compatible with the hd44780-20x4; but you can use a 20x2 or 16x2 by modifying the corresponding part in the scad file) 4. A small USB Wi-Fi adapter (cheap Edimax ones work fine) 5. A DC-hollow-jack (2.1mm, for powering your Pi) 6. An audio distribution for your Pi, such as Volumio (or self-configured, whatever suits you best) 7. M3x6 screws and washers, nuts 8. Old short USB cables or their parts for routing **The Power of Flexibility:** Modify the case to suit your needs through the scad file; it's not fully parametric, but I included it for smaller adjustments like changing the display size. **Innovative Features:** * I created a little tray as an extra part to avoid hours of reprinting if your soundcard or power jack doesn't fit. It's easily redesigned to accommodate different hardware. * Remix and let me know if you successfully build one of these cases, and I'll add the top-part with buttons soon. **Step-by-Step Instructions:** Be cautious when snapping together the two parts; breakage can occur depending on your layer-lamination quality. 1. Attach the Power jack securely for optimal connection. 2. Zip-tie (or better yet, hot-glue) the soundcard to the tray. 3. Add a ~150ohm resistor (dependent on display requirements) between P15 and VCC for adequate contrast (for hd44780 displays). **Cable Routing Simplifications:** * Remove unnecessary cables for better fitment within the closed case. * Solder the power-in-usb-jack directly to a DC-jack; also, re-route the USB-DAC using an USB cable. **Print with Precision:** * Print in black PLA with moderate speed (~50mm/s) and 20% infill. * Use a 0.35mm nozzle and 0.25mm layers for best results.