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3D printed Ergo kb parts: SLA vs. FDM?
(lemmy.world)
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this post was submitted on 07 Sep 2023
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ErgoMechKeyboards
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Ergonomic, split and other weird keyboards
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Keep it ergo
Posts must be of/about keyboards that have a clear delineation between the left and right halves of the keyboard, column stagger, or both. This includes one-handed (one half doesn't exist, what clearer delineation is that!?)
i.e. no regular non-split¹ row-stagger and no non-split¹ ortholinear²
¹ split meaning a separation of the halves, whether fixed in place or entirely separate, both are fine.
² ortholinear meaning keys layed out in a grid
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- Compare keycap profiles Looking for another set of keycaps - check this site to compare the different keycap profiles https://www.keycaps.info/
- Keymap database A database with all kinds of keymap layouts - some of them fits ergo keyboards - get inspired https://keymapdb.com/
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I've been printing sculpted palm rest prototypes in ninjaflex, because i had some on hand, but if i were you I'd buy ninjatek's Chinchilla. 75A and tested for skin compatibility.
i think its a reasonable idea, the TPU seals in air so its like a pool inflatable. TPU likes lower layer heights and you can get away with 5% infill but any less and the top surface will have holes in it and lose that pillowy feel. might need to go higher for a smoother surface. I recommend a non-crossing infill (otherwise you get blobs on the nozzle that will ruin your surface feel) and one that alternates directions, rather than stacking lines, so that the infill has more give. i tried gyroid at first, but 3D honeycomb was noticably softer because it alternates.