61 lines
2.6 KiB
Plaintext
61 lines
2.6 KiB
Plaintext
Levinson Choc case
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This is a parametric two-part CAD model of a case for the Nyquist PCB rev3 with
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Kailh PG1350 switches and the undesirable bits broken off. Slightly slanted
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forward to accomodate TRRS jack cables.
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image::front.jpg[Front view]
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image::back.jpg[Back view]
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image::mbk.jpg[Without cover, with MBK keycaps]
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It won't be a great hassle to adapt this for rev3.5. It will be able to lay
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flat in that revision, saving print time and material. In general the jack
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connector was a major pain point (though there don't seem to be any USB C cables
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angled on both sides available yet).
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You'll need
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-----------
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- https://keeb.io/products/nyquist-keyboard[Nyquist/Levinson] rev3
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with some Kailh PG1350 switches soldered in
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- an FDM 3D printer (developed on a
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https://shop.prusa3d.com/en/3d-printers/994-original-prusa-mini.html[Prusa Mini+])
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- ideally clear PETG (photos show
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https://shop.prusa3d.com/en/prusament/1216-prusament-petg-clear-1kg.html[Prusament PETG Clear])
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- long enough M2 screws (e.g. from the craptastic and useless keeb.io FR4 case)
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- https://www.aliexpress.com/item/32891555457.html[2.5mm high silicone pads]
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- https://solvespace.com[Solvespace] 3 to generate a triangle mesh for printing
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from the model
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Print settings
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--------------
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- recommended is the default 0.4mm nozzle with 0.2mm layer height,
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quality settings
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- increase extrusion width for solid infills until the print looks clear enough
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(0.55mm produced a good result)
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- the cover looks better with right-angled infills
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- use the Hilbert Curve for the bottom fill pattern to make it look nicer
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- similarly recommended is a textured sheet for the heatbed
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Both halves fit onto the Mini's print area. Increase heatbed temperature
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by approximately 5 degrees Celsius if printing from PLA then, or otherwise make
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sure that corners don't lift off. Increase the temperature mid-print to salvage
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if you see this happening, it should lay back down.
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Issues
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------
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- it may not match exactly, depending on extrusion accuracy
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- the cover parts stand in the way of MBK keycaps, and the right part likes
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to lift off at the far end, preventing full keypresses
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- screw holes in the cover need some fiddling around but generally work
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- Solvespace is slow at computing the cover parts. You can remove them
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entirely, they serve an aesthetic purpose.
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License
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-------
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https://creativecommons.org/publicdomain/zero/1.0/
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To the extent possible under law, Přemysl Eric Janouch has waived all copyright
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and related or neighboring rights to the Levinson Choc case.
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This work is published from the Czech Republic.
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