I see that the PicoCalc components 3D models are available to download now.
Has anyone tried printing them, and if so, why? 
Theres been the odd mention of some modules having large ethernet sockets on the end hence needing a new case back.
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One of the modules (MilkV Duo, I think?) has an optional camera module, and that might be interesting if it could be built into a custom printed case. And with a lot of these, there might be reasons to attach a second ESP32 or Pico device inside for some kind of shenanigans. Doing that for wifi/bt has been mentioned, but there are probably other things people will come up with in time. 
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I think you can probably fit a Raspberry Pi Zero in there, you’ll just need some jumper wires and a few 3D-printed parts.
Have someone thought of a cartridge implementation where the SBC is in the cartridge and the edge connector is connected to the internal socket? You can flash and prepare several cartridge and changed them on the fly. Would be neat.
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I was thrilled to see that the PicoCalc components 3D models were made public.
That’s because I wanted to modify the bottom part of PicoCalc.
Specifically, I wanted to add a convenient function to replace Raspberry Pi PICO with other boards.
So I tried modifying the bottom part.
- It has a window for replacing Raspberry Pi PICO with other boards, and a sliding plate that fits into the window.
- The bottom is 2mm deeper so that the space between the bottom parts and those boards does not become narrow.
- Tools for replacing boards are provided.
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Similar her, I am doing a Testprint.
Rectangular Port on the top is for USB, but i think you may design all kind of external suff. For example a antenna holder, a extra switch, .. Hole is 20x10 mm.
Holes for reset is neat. I have forgot them.
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Thank you for letting us see your design.
It’s a great design that takes scalability into consideration.
I’m looking forward to seeing how it turns out.
Great result, thanks for showing it.
If you leave a little bit more space at the bottom we can use the Lyra Plus.
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Maybe, also then I have to redesign the cover. Don’t have the Lyra Plus currently.
I don’t own a Lyra Plus either, but I imagined a design based on the dimensions listed as “outline dimensions” on the manufacturer’s website.
If I were to make a back case for the Lyra Plus, it would look like this.
It seems that the gap between the battery box and the LAN port will be narrow, so a LAN cable with a compact connector like this will be needed.
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That actually lools very good
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I would make a cover over the ribbon cable to protect it. Maybe a recessed part of the cover.
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It’s true that there are spikes on the back of the Lyra Plus’s LAN connector that could damage the LCD’s flexible cable.
The flexible cable must be protected from those spikes.
Furthermore, the LAN cable’s release latch fits underneath the LAN connector, making it difficult to pull out the LAN cable.
So I came up with a way to protect the flexible cable and assist in removing the LAN cable.
It is an item like this, which fits underneath the lyra plus’s LAN connector.
It keeps the flexible cable away from the spikes and helps to pull up the LAN cable’s release latch.
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Hey I loaded this into bambu studio and I’m getting the non-manifold edges issue for the back case. The cover is fine thankfully. Can you please correct?
It is hard to modify STL files in freecad. I get no error with Orcaslicer, Is it not printing?
It looks like it’s going to try. For some reason I always thought it wouldn’t print. It looks like the slicer is complaining about the thin section at the top of 2nd porthole you made. I hope that helps a bit.
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