HDMIPi Buttons

thingiverse

This is a remake of DrJekyll's brilliant buttons idea, which offers an alternative clipping technique and increased rigidity in the design. You can discover more information on HDMIPI at http://hdmipi.com. Main photos thanks to Alex Eames at http://raspi.tv. Instructions Print in PLA without supports, and with the buttons facing down on your print bed. To get crisp symbols, you need to nail your bed height exactly. If you prefer not using PLA and opt for something like ABS instead, be prepared to account for shrinkage; otherwise, it won't clip in tightly. The measurements are precise. Personally, I printed with a 0.15mm layer height, tested with both a 0.4mm and a 0.25mm nozzle, and it should work with other options too. To fit the design into your HDMIPi, slide it through the hole horizontally so that the tab behind the external button hooks under the edge. Once fully inserted, push the power button until it's flush. It should click in place smoothly. If you run into issues, I've included the 123D design file (a free package), so you can make any necessary tweaks to fit your needs perfectly.