• 5 Posts
  • 977 Comments
Joined 2 years ago
cake
Cake day: October 25th, 2024

help-circle






  • As an old toolmaker, Welcome to the world of understanding your process! And knowing the limits of that process.

    I wonder what he actually expects for a tolerance day to day. A +/-.1mm IS doable if you’re careful. But there is enough randomness in the FDM process, even outside the slicer, that I wouldn’t bet the farm on any 1 random piece hitting that tolerance. Let alone repeating that level of tolerance every time over say, 100 parts.


  • Yes, I know that. I have even taken fresh cooked rice, spread it thinly on a sheet pan and stuck in the freezer for 20 minutes or so. This will make a passable fried rice as the rice cools quickly and dries a little bit. Still, it’s not quite the same as sitting in the refrigerator overnight.


  • BluewingtoScience Memes@mander.xyzAerosol
    link
    fedilink
    English
    arrow-up
    5
    ·
    5 days ago

    For a good while now I just felt old. But not today. Today I feel fucking old.

    Two weeks ago I had an MRI to see if I need knee surgery. Tomorrow I get to talk to Ortho about my impending knee surgery-- A lateral tear of the meniscus in the cleft with some degeneration of the joint. I’m sick of walking with a cane and wearing a knee brace.

    Saturday I drove 360 some miles to get an MRI to see if I have prostate cancer. No results yet, but I have my suspicions based on my PSAs. The question is: Is it the slow cancer or the fast cancer?

    Thursday I need to drive another 100 miles to talk to another doctor about what is now a very minor issue.

    So yeah, I’m mother fucking old today…

    ***Oh, and yes I remember Bardot vividly from my youth. And a host of others you may or not remember. From Marilyn Monroe to Jane Russel to Maureen O’Hara.



  • As I know from reading various outside sources and have heard, there have been NO actual fires reported and verified caused by the NTC failure in question. Just some scorch marks and a bit of localized melting.

    This does not mean that a fire is impossible, but that you would need to have an exceptionally bad day for the fire resistant plastic of the housing and board to catch fire.



  • What you are thinking of is the NTC thermistor that was failing. That part was meant to limit the inrush current when the nozzle was rapidly heating. Its failure will just stop the nozzle from working at all. Which is precisely what should happen at failure. It is suspected they either got a bad batch of NTC thermistors or they were pushing the inrush current too close to the max rating. Bambu replaced a fair number of control boards and took the hit for not addressing these failures by not recalling the affected batch and replacing the offending board.

    The plastic housing of the printer is a fire-retardant, high-temp polymer. And as far as I have read and know from my following of the issue, there have been no reported and verified fires caused by this particular problem. Just some scorched plastic and a bit of localized melting with the blown NTC.

    But there does remain a non-zero chance of a real fire because of bad NTC. But it needs to be ignited by dust or little bits of filament that invades every nook and cranny on every printer in existence. If it bothers you and you are worried, clean your A1’s insides every year. Make it a routine maintenance thing.

    Disclaimer: I do own an A1 mini (which is not affected by this issue). While my mini does exactly what I originally bought it for (before the ongoing attempt of Bambu to crash the plane), I’m under no illusion that Bambu is not a company I wish to support.


  • Here is the thing: you want to refrigerate your rice overnight to make the best egg fried rice. Uncle Roger is correct; there is an art to making the best fried rice, and that requires refrigeration overnight. Besides, rice holds its heat for a long time anyway. At least longer than you would like to eat rice with the meal you served it with.


  • BluewingtoDull Men's ClubChop chop
    link
    fedilink
    arrow-up
    2
    ·
    6 days ago

    That lightweight splitting maul ain’t doing your exercise routine much good. Get a heavier maul and get an even better workout. Take it from someone who grew up splitting wood to keep warm for real.

    And if you want the very best workout, find some American elm. It’s near impossble to split even with a 15-ton hydraulic splitter. Thanks to the corkscrew grain. Though at -20F/-28C it will explode into splinters when hit with the maul.

    Keep on keeping your dream alive!



  • I still have the Kodak Brownie box camera that took the very earliest photos of me. I think there are still one or two surviving black and white photos yet. My father had a lower-end Pentax 35mm that I still have as well. And there were a goodly number of Christmas gift cameras I received growing up.

    The problem with film cameras was remembering to take them in to get developed. So much undeveloped film… And if you did develop them, well, there was only one photo that you really wanted anyway, and that one was blurry because you were shaking too much.

    Paul Simon said it best.