3d-files icon indicating copy to clipboard operation
3d-files copied to clipboard

No STL files for light edition PCB 1mm

Open MarkJeronimus opened this issue 3 years ago • 1 comments

I bought two light editions from Lilygo via AliExpress, and the PCB they use is 1.0mm, not 0.8 or 1.6mm. I could probably squeeze the module into the case but I don't like unnecessary forces.

I have simulated this in OpenSCAD and I find the thickness for the PCB+DISPLAY is 2.8mm, and I measure with my calipers that my item is 2.86mm (excluding screen protector). I can squeeze my calipers such that the gap between the display and PCB disappears, and I measure 2.78mm, but if I do that all around, the display will probably bulge because of the double-sided tape in between pushing them apart by ~0.2mm. (the piece of tape is small, like 1x2cm)

MarkJeronimus avatar May 17 '21 19:05 MarkJeronimus

I have no influence on which pcb thickness they chose. As I have built & soldered mine based on 0.8mm and 1.6mm PCBs these are the only I have made so far.

The best approach would be a parameterised case based on open scad. See this for a start: https://github.com/Open-Smartwatch/3d-files/tree/master/case-light-round-parametric-printed-straps

uvwxy avatar May 20 '21 16:05 uvwxy