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whitequark's profile
whitequark
whitequark
whitequark
@whitequark

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whitequark

@whitequark

http://whitequark.org  · http://llvm.moe  · http://powerlinesinanime.tumblr.com  · working on quantum computers for a living · DMs open · she

Joined July 2010

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    whitequark‏ @whitequark Sep 18

    i was explaining to someone here how the drivers on this 3d printer are pieces of junk designed in blatant violation of most vendor guidelines and only 30 minutes later one of them dies mid-print thanks for validation but im not looking forward to redoing this board properly

    1:13 PM - 18 Sep 2018
    • 2 Retweets
    • 30 Likes
    • Ted Mielczarek ato̧̕m̀͡i̴̷̛c̨͝t͝҉͡h̷҉u̵̶m͜͞b͏͝s̀́ 🎃🏳️‍🌈🎃SPOOQ (they/she)🎃🏳️‍🌈🎃 ABANDONCULTURE sww1235 mjolk.part1.rar Alexander Kramer 𒀯 𒄷 𒄈𒀭𒁇 An Unwise Man
    3 replies 2 retweets 30 likes
      1. New conversation
      2. whitequark‏ @whitequark Sep 18

        it was only slightly hot, not overloaded, not abused. it just... decided to not work anymore. rip

        2 replies 0 retweets 3 likes
        Show this thread
      3. whitequark‏ @whitequark Sep 18

        does anyone in arduino land read past the pinout page of the datasheet

        4 replies 8 retweets 24 likes
        Show this thread
      4. whitequark‏ @whitequark Sep 18

        a 2 A max stepper driver over a 3 A per isolated pin connector specced for 1.7 A steppers, with a current trimpot that has a quadratic range of 0-4 A so you get only 1/4 turn of adjustment, with QFN sink pad not soldered to a plane, instead a tiny heatsink glued on top of it…

        2 replies 2 retweets 11 likes
        Show this thread
      5. whitequark‏ @whitequark Sep 18

        plugged into a backplane where only a singe connector out of a dozen has a key and the rest are all just kinda placed randomly without shrouds or, mostly, spacing between them with microscopic pin 1 markings that don't match the mating board and point in arbitrary direction…

        1 reply 2 retweets 3 likes
        Show this thread
      6. whitequark‏ @whitequark Sep 18

        honestly this is already too horrifying to continue, how does any of this work, ever, for anyone

        3 replies 0 retweets 8 likes
        Show this thread
      7. End of conversation
      1. sww1235‏ @sww1235 Sep 18
        Replying to @whitequark

        No

        0 replies 0 retweets 1 like
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      1. New conversation
      2. *mut "invisible chaotic self-modifying biomachine"‏ @edefic Sep 18
        Replying to @whitequark

        if you want a decent board, either https://reprap.org/wiki/4pi  or the smoothieboard will do the trick

        1 reply 0 retweets 0 likes
      3. *mut "invisible chaotic self-modifying biomachine"‏ @edefic Sep 18
        Replying to @edefic @whitequark

        the 4pi is my personal favourite, but i'm not sure there are very many of them in existence, and i have a smoothieboard v1 that i'm yet to start using both have proper stepper drivers (and, disclaimer: were designed by friends i worked with closely in my RepRap days)

        0 replies 0 retweets 0 likes
      4. End of conversation

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