PI4 Ender 3 Touchscreen Case & Holder for Raspberry Pi 4 (4" HDMI)

thingiverse

Important!! READ ME!! This is a remix for Tronnics Ender 3 Touchscreen Case & Holder for Raspberry Pi. Ive made his sketch compatible for the Raspberry Pi 4 with the 4" HDMI LCD screen. His was for the Raspberry Pi 3 (3.5" screen") and other possible models. The PI4 requires a beefier power supply so I've done much work to the existing power supply enclosure to be able to fit the new power supply under the existing one keeping the nice clean stock look. (looks even better honestly). When using the PI4 (especially with a Touchscreen) you need a power supply capable of producing at LEAST 3.5amps!!!! So using the popular LM2596 to step down the voltage will not work for it only will output 1 amp!! The power supply you need is the ($10) S-25-5 120v-5v 5amp psu. (Amazon Link Below). You also cant use the Type-C power supply to power the Pi for the connector gets in the way of the Z-axis switch coming out of the Pi. Besides why would we want a separate plug-in power line, we are better than that! I had to move the plug to the back of the printer and raise the psu to be able to fit the new power supply under the existing power supply and then very neatly wrapped it all up. I even covered the existing power supply so you don't see the metal finish. Check out the pictures! Ive also included a wiring diagram for you and had included a relay that is able to turn the printer off remotely for emergencies with the raspberry pi. (can also use the relay to turn on/off LED lights but would be wired differently) Ask if you need help. I know it seems like a lot of work but it really wasn't bad and well worth the effort. If you have issues and are using the relay check the hi/low jumpers on the module :) Any other questions feel free to message me. *some of the included stl files are not showing up in the pictures list in thingiverse but are included in the files when downloaded. The Touchscreen: https://www.amazon.com/Miuzei-Raspberry-Full-Angle-Heatsinks-Raspbian/dp/B07XBVF1C9/ref=sr_1_1?dchild=1&keywords=raspberry+pi+4+screen&qid=1606096180&sr=8-1 The PSU: https://www.amazon.com/Pasow-Switching-Supply-Transformer-Converter/dp/B015C5HVOA/ref=sr_1_15?dchild=1&keywords=120v+to+5v&qid=1605568957&sr=8-15 The relay module: (any 5v relay module w/ an optocoupler should be fine) https://www.amazon.com/Channel-Module-Trigger-Optocoupler-Arduino/dp/B079FJSYGY/ref=sr_1_7?dchild=1&keywords=15v+0+amp+relay+board&qid=1605576313&sr=8-7 Banggood.com may also sell these parts for much cheaper but shipping is much longer! Remix editing steps- So I had to stretch the sleeve out a bit to make the 4" screen fit and changed some of the cutouts around and made it a little thicker on the face so the letters ("OctoPi-TouchUI") are cut a little deeper so it looks a little more defined. I also squared off the corners (instead of rounded) to match many of the other bezels for the stock controller screen. I printed about 5 of the sleeves to get the lettering to print just right and included the gcode for you so you can get the best quality settings without trial and error. Included are 2 different back covers. One solid and one cut for a 40mm fan (showed in red setup in my pictures pictures). I also cut out a bit more on the sleeve so you can access the SD card a bit easier. Howchoo wrote a great tutorial to get TouchUI (the program that is kind of like a theme app for octopi so touchscreen is a little more functional on a small screen) working with OctoPi. be sure to checkout his tutorial at: https://www.thingiverse.com/make:707262 Tronnics page: https://www.thingiverse.com/thing:3030160 The camera enclosure was done extremely well by ModMike and not my design nor did I remix the included camera case sketch.