ESP32-WROOM-32U Casing Remix for Screen
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Remixed case to add a screen stand to a very good case I found on here.
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- Creative Commons — Attribution — Noncommercial — Share Alike
I found a case I really liked on here (by @loiseaucreatif). It's a great design but I wanted somewhere to put the 2.25" screen (DIYUSER TFT LCD ST7789 76*284)I bought to go with my ESP32-WROOM-32U.
I've never used CAD software before, so this is my first attempt at a remix and my first time using FreeCAD. I've muddled through and only got it all twisted a few (hundred) times before coming up with something semi-presentable.
I added a screen stand with a mounting hole, to hold it to the base, and an enclosure for the screen at the top.
I also added some space, for routing the 8 wires this screen uses, inside the case, and a hole for them to be fed through to the outside of the case to reach up to the back of the screen.
I tweaked the usb hole as my cable was a little too thick for the existing hole so it kept popping out.
I've copied over the licence options loiseaucreatif chose to make sure this remix complies with their wishes for the original model.
If you share or remix this, please do attribute the original creator of the model I based it on.
I've posted some pictures of the project so far, but I haven't finished wiring up the screen yet so that bit is missing. I'm still deciding if I want to add a socket to the back of the screen and a plug to the wires so I can remove the screen at will, or maybe I'll just solder it all in place and hope for the best.
I printed this using PLA, 0.4mm nozzle.
For the stand piece, I set the infill to 50%. I tried at 20%, but the screen arm came out a little brittle.
Given the small proportions of some of the features I found it best to print the stand with the top face of the frame on the bed (so upside down with the arm pointing upwards) with tree supports (3mm branches, 20mm trunk, 7 degree diameter angle).
The screen cap is quite thin so I used a brim for plate adhesion so it doesn't warp during the print.
I'm using a textured plate so the surface finish is in part from that.