dual_sport_dork 🐧🗡️

Progenitor of the Weird Knife Wednesday feature column. Is “column” the right word? Anyway, apparently I also coined the Very Specific Object nomenclature now sporadically used in the 3D printing community. Yeah, that was me. This must be how Cory Doctorow feels all the time these days.

  • 6 Posts
  • 354 Comments
Joined 2 years ago
cake
Cake day: July 20th, 2023

help-circle
  • Ammonium nitrate does a pretty credible job of preventing itself from being used as an explosive to begin with. It’s damn difficult to initiate, and anyone with the capability to do so would be able to trivially defeat pelletizing by, e.g., just grinding the stuff up first.

    It’s not a matter of just sticking a fuse in it like Wile E. Coyote. You already have to have your hands on some pretty serious blasting caps or have the capability to manufacture your own, and at that rate you’re already pretty well versed in making things go boom.

    McVeigh had to resort to using dynamite as a booster to initiate his truck full of ANFO and even then IIRC not all of it went off. But if you already have dynamite… you already have dynamite.

    What pisses me off is that whole debacle made potassium nitrate hard to get your hands on in bulk because too many idiots in suits flunked high school chemistry. KNO3 is significantly more useful for purposes other than stripping the facades off of government buildings.

    Oh, and after the affair some dimwit from the ATF came to my hardware store and tried to grill me about chemical fertilizers in a circumspect and very strange way that was attempting to simultaneously serve as a threat while also not letting slip the knowledge of what ammonium nitrate could possibly be used for, in case the mere act of asking gave anyone any ideas. I lost count of how many ways I had to phrase “we only sell consumer grade blended products” at him until he finally went away. Demonstrating that I knew more about it than he did probably would not have been a great idea regardless of how satisfying it might be.



  • I await with interest the first serious accusation that I’m a bot. A very well armed bot, perhaps. I certainly type some strange things, but you guys have probably seen my hands too many times.

    Unless my hands are also AI generated. Hmm.

    I’ve already garnered the achievement of having several people on one of the Discord servers I hang around on of treating me as if I’m literally a penguin. Nobody’s yet come up with a credible explanation of how I’d be able to type. (Including, surprisingly, the obvious hunt and peck gag that presents itself.)


  • I have offers turned off on eBay for this reason. The only thing you ever get is low ball offers. Yes, I know you can set a lowerbound limit.

    Since I have offers disabled (or if someone wants to try to underbid your setpoint out of optimism and/or stupidity) that prompts the lowballers message instead. Usually with an insulting poorly spelled paragraph attached, or some sob story. Or both. But since they messaged you, that means you now have their user handle and can block them. So, goodbye.

    Edit: In fact, speak of the devil. I had to punk exactly such a rando right now. They came at me with a 50% offer on an item I already have listed at roughly 50% below its selling price with their excuse being, “Well, I’m taking a risk trusting you that it works.” Broheim, if it doesn’t work eBay will force me to take it back, no matter what… The beauty of this, by the way, is that this precludes such idiots from interacting with your listings anymore and, I think, even being able to view them. So you’ll never even see them again, unless they go out of their way to create another account. And they lose out on their chance to buy whatever your thing was at any price through their sheer greed and ineptitude.

    I’m given to understand a sizable fraction of these dweebs try to make their living lowballing whoever they assume are desperate sellers of crap on eBay, and then turn around and list the same item right back for full price.


  • I’m assuming glass printer beds are supposed to be tempered, and just an FYI for you or anyone else attempting the hardware store or score-it-yourself method, the glass you wind up with will not be tempered and will also have exceedingly sharp edges and corners. If you have access to a belt sander with a suitably fine belt you can at least round off the sharp bits.

    Untempered glass probably won’t deal with thermal loading very well, either. It might work, and it’ll be cheap, but prepare for disappointment.



  • My attorney has advised me to make no statements whatsoever regarding the applicability of the Lumintop Thor Mini I just bought the other week, which outputs a mere 250 lumens but does so in a narrow cone that’s got, to my reckoning, a divergence of only about four or five degrees.

    I’ll have to do some measuring later, but at rear-windshield-to-asshole distance it’ll only throw a spot that’s probably about a foot wide, delivering maximum fuck you with a minimum of collateral damage.


  • Easy. I did it the just other day because I forgot that my new CRF250L is a Honda, and the position of the turn signal switch and the horn are reversed from every other bike I own, and probably not coincidentally every also other motorcycle brand on the planet. Some guy in the lane next to me got super butthurt because he thought I honked “at” him as I was completing my turn, which was quite hilarious to watch. (He was in the far left lane, I was doing a right on red from the right lane. There is no conceivable reality in which anything I was doing would be related to him, if not for the fact that he had Main Character Disorder.)



  • That works. Also, back when I delivered pizza I kept a rather large LED flashlight in my cupholder all the time, ostensibly for spotting mailboxes and house numbers. (This was back in the day when having a powerful LED flashlight was a big deal, not like nowadays when you can get 3 for $10 on Amazon or whatever.) Pointing it out the back window usually got the point across when asshats felt the need to sit three feet off my back bumper and shine their high beams at me.






  • melt ceramic

    If you’re melting crockery in your microwave, I assure you whatever it is you’re using is not ceramic. Even the earthenware stuff that cheap coffee mugs are made out of has to be heated to upwards of 1000° C just as part of its hardening process, never mind melting.

    You can absolutely get silica gel beads hot enough in a microwave to melt and deform plastic containers, though, including those faux stoneware textured ones. Beware if what you have is not actually Pyrex or ceramic.

    I cook the shit out of my silica gel beads in the microwave in an old ceramic pie dish I have no other use for. There isn’t a mark on it. Although I will say, you probably want to microwave your beads gently anyway because at high power levels the moisture flash boils out of them fast enough to cause them to split and shatter, or occasionally leap out of the dish like popcorn.


  • I have a Dell Axim X50v in a box somewhere. I imagine the battery is toast and I’ll probably have to keep it in its cradle to remain powered. It was a hell of a machine for it’s day.

    I went through a succession Windows CE/PocketPC machines back in the day, starting with a Casio Cassiopeia E-115, then an Audiovox Maestro which was a rebadged Toshiba, then an HP iPAQ 2215, and finally the Axim.

    The displays on the Maestro and the Axim were really something, and I wish someone would bring these back for a modern smartphone. They were rotten at color accuracy, but both had transflective displays that were fully readable even in direct sunlight. The Axim X50v also had a full 480x640 screen resolution which blew the first few iPhones out of the water on pixel density and even gave the iPhone 4 a run for its money. “Retina” display, my ass.

    I had a Microdrive bunged into the CompactFlash slot on my Axim which was… several gigabytes, I don’t remember how many. I kept it packed with MP3’s, and I had a custom wallpaper with a white-on-chartreuse silhouette of a pacifier on it with the legend, “All 10,000 Songs On Your iPod Suck.”

    But then the entire PDA market got swallowed in one gulp by smartphones.