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.

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Joined 1 year ago
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Cake day: July 20th, 2023

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  • Well, that’s encouraging. I happen to own a Reverb G2 so maybe I should check it out and report back.

    Anyway, the 3DoF is three degrees of freedom, i.e. you can rotate your viewpoint on a fixed point in terms of pitch (up and down), yaw (side to side), and roll (tilt your and look at things sideways and upside down). 6DoF adds the other three axes, i.e. in addition to all of the above you can also walk around and have a non-fixed viewpoint – which in terms of actual VR gameplay is almost certainly what you want. Enabling this via Basalt (there are two other SLAM options as well, apparently) is something I have no experience with.

    The WMR controllers are connected to your machine via Bluetooth and at least in the case of the Reverb G2, there is a built in Bluetooth receiver in the headset itself which in normal operation, i.e. in Windows, means the entire ensemble can act as a single all in one solution without having to use any additional outboard hardware. Unless there is some kind of technical reason not to I can’t see why you wouldn’t use it that way versus using a secondary Bluetooth dongle, but I haven’t tired recently either.

    Last time I looked the WMR support was in beta or something and it supported only the headsets, not the controllers. So at least this is progress.



  • It’s a transparent attempt to lock you in to buying their filament. If you want to know how the community at large feels about this, just go to your favorite objects repository and see how many solutions people have developed for ripping the RFID tags out of the Bambu spools and integrating them into spools from other brands just to make the damn machine happy with it.

    It really doesn’t add any “godsending.” It’s not difficult to, when you stick a new spool of filament in the machine, tell your slicer what that spool was. It’s not like you’re changing spools every 30 seconds, especially if your machine has some manner of multi-spool box like the AMS or various other brands’ versions of the same.












  • Here’s the story about those damn cut-the-string machines I repeat every time I see one of these.

    There used to be one on my local dying mall. Noticing this, and being the clever dick that I am, I came by one day with a powerful laser and cheesed it by slicing the string in half right through the glass.

    I subsequently found out that the iPad box that was dangling from the string was, in fact, empty. No “call this number and use this coupon to redeem your prize.” Just, empty. Too bad about your fifty cents, kid. Get fucked.

    Do you know, I don’t feel bad in the slightest about cheating that damn machine.


  • The answer to your question is going to be in calculating how much is not much.

    Depending how many tokens you need, each of those little loops of filament might not be sufficient. Those appear to be 5 meters of each color which works out to just about 40 grams of material. What you’re looking at is designed for use in those 3D extrusion pens, not a printer, so depending on your printer you’ll probably also have to transfer these little scraps of filament… one at a time… to empty spools in order to get it to feed. And I know for a fact on my printer the entire filament path from the spool holder to the print head is the better part of a meter to begin with (it’s about 29 inches, all told) which would also be a pain in the butt.

    Stick one of your objects in your slicer and slice it, and part of the output down there in the bottom right corner should be the estimated amount of material, in grams, you will need for each one. Or if you want to think of it that way, PLA is 1.24 grams per cubic centimeter.

    If you are using a low infill percentage and either don’t need many tokens, or you’re okay with them all being a hodgepodge of colors, you may still be able to get away with this. But you should definitely verify that first.

    You can buy filament multipacks that are four quarter kilo spools rather than one full kilo spool pretty easily, which might be a better bet. Something like this, although a lot of brands do something similar.

    Edit: Fuck it, I did the math.

    Using the files provided in your link, and I adjusted the infill to 100% because the author’s recommended setting of 96% makes no sense – it’s near enough to 100% to make very little difference, and such a high ratio would print like trash with most infill patterns anyway.

    • Berry: 1.84g per unit, 21 units possible per 40 grams (I was a little conservative to account for purge lines, etc.)
    • Fish: 1.56g per unit, 24 units possible per 40g
    • Grub: 1.21g per unit, 32 units possible per 40g
    • Mouse: 1.52g per unit, 25 units possible per 40g
    • Wheat: 1.62g per unit, 24 units possible per 40g

    I will leave other infill ratios as an exercise for the reader. Also, this does not account for any attempts at multi-color printing which will inherently produce some waste material.

    So, how many of these do you need? Is this like, a 100 each kind of thing? Or just 10 or 15?


  • For anyone worried about the UV blocking factor, or rather the lack thereof: Just print your lenses in polycarbonate. Polycarb blocks UV real good, even without special fancy coatings or anything else. Of course, you will then want to make at least one layer of the lens not full of holes, which would rather defeat the purpose.

    How you would get your printed polycarb to be acceptably optically clear is left as an exercise for the reader. The solution may involve toothpaste.


  • Well, I think there are multiple potential candidates depending on how you define greatness. I think these few are certainly the most influential:

    • Super Mario Bros. Possibly the system it ran on was more important, but this game was a system seller for the system that single-handedly saved not only the entire video game industry, but probably the very concept of video games at a time when it was looking like it’d just be another fad that faded away right along with bellbottoms and pet rocks, with what was left of it remaining caged in Japan. Mario 1 was most people’s first platformer, I also have to think that the first damn goomba in 1-1 probably holds the crown for the highest kill count of any entity in the universe.
    • Tetris. Infinitely playable and probably infinitely played, and you can get it to run on damn near everything. Everyone knows Tetris, even people who haven’t played it or any other video game.
    • Doom. Just, Doom. Yes, Quake was more advanced. Yes, Quake was technically the actual technological forefather to the polygonal 3D games we play today, and many game engines still include tiny bits of Quake’s original code. But there would be no Quake without Doom. It certainly wasn’t the first FPS, but it’s the game that cemented the FPS formula for good and firmly established the x86 PC as not only a viable gaming platform, but the king of gaming platforms from that moment until this very day. Ever since Doom, outside of specialized arcade hardware the PC has been the powerhouse platform for the biggest, most technologically demanding games. After Doom game out everyone wanted their own “Doom clone” on their platform just to show that they weren’t just another me-too, also-ran.
    • Street Fighter 2. The genre defining 1 on 1 fighting game template. Enough said.
    • Chrono Trigger. This game showed everyone not what a console RPG was up until that point, but what a console RPG could be if you put actual effort and creativity into it and didn’t just crank out another grindy and soulless, swords-and-sorcery-go-kill-the-dragon yawn fest just to keep your franchise going. Its contemporary Final Fantasy games almost got there (especially 6), but Chrono went the full mile. The feats Chrono Trigger pulled off on the humble SNES as well as many of the innovations it brought forward were far ahead of its time and it took literal decades for the genre to catch up to it – including quite a few entries from its own studio.
    • Final Fantasy 7. This game is objectively crap even compared to many of its peers. But there is no doubt that it was the next stepping stone from Chrono Trigger that finally firmly launched the console RPG into mainstream territory, made the genre as a whole truly successful, and was an awful lot of people’s first RPG. It probably made a significant and permanent contribution to the formation of weaboo culture, as well.
    • Half Life 2. No, not the first Half Life. Not Opposing Force and not Blue Shift, either. There was never before any hype and anticipation for a video game like there was for Half Life 2. In the months leading up to its launch it was all anyone talked about. Not Doom 3, not the new Warcraft. Half Life 2. And of course with Half Life 2 came Steam, and we all know how that turned out. Sure, Steam itself started life as a patch delivery and server browsing platform for Counterstrike, but up until Half Life 2 appeared in it, nobody cared. The impact Half Life 2 had on everything is absolutely undeniable, and that doesn’t just include the horde of games that came after it attempting to imitate its unbroken linear first person narrative and setpiece based game design as a cash grab, not to mention that phase in first person shooters where seemingly everything suddenly had to have physics puzzles in it…