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Cake day: June 12th, 2023

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  • Live Paper is not E-Ink, so it shouldn’t have the same inherent issues with ghosting or refreshing.

    E-ink is a very specific display technology with ink particles floating in oil controlled by magnetic fields. They don’t explicitly state what this Live Paper exactly is, but they do state it’s something that solves the downsides of typical reflective LCDs, so, probably one of those but better.
    Actual e-inks have the benefit of looking like ink blobs on paper and not square pixels, and the image staying even when power is completely removed, and the massive downside that because they are being physically moved, it actually takes a bit of time so they have terrible refresh rates.






  • Libraries buy either physical books, or licenses to ebooks, and can only lend out as many of them as they own at a time. IA skirted the line by lending out self-digitized versions based on how many physical books they had, which was a grey area, but technically maybe not illegal.
    They then disabled that lending limitation.

    There’s really nobody who would argue that taking a CD, ripping it to MP3s, and providing those for unlimited download is anything except piracy, and the people suing IA are claiming same goes for books. And it is rather hard to find a compelling legal reason why it isn’t.





  • Extrusion variance and bad tolerance filament will also exhibit the exact same looking issues, not just poor Z alignment.

    Just to be sure, you have z-hop disabled? That can cause all kinds of issues if the gantry isn’t absolutely perfect.
    Another thing would be making sure all variable line width printing options are disabled, I.e ones that try to fill gaps with thicker lines or print thinner lines faster to stretch the filament.
    And finally, melt temperature oscillations, making sure every feature - outer/inner walls and infill - are printed at the exact same, slower, speed.

    As for actual z issues, if the bed/gantry isn’t freely moving and has even a slight bind on the screws/axis, it can miss microsteps. One rather harsh troubleshooting tip is to reduce z-microstepping to a lower value, as that gives it more torque per step and usually you do not need the z to move anywhere near as gradually as some microstepping setups theoretically might allow.