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Joined 2 years ago
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Cake day: June 9th, 2023

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  • When I’m using FreeCAD, I’ll use a spreadsheet for all of my variables, so everything is linked together by formulas. Next, I’ll use datum planes rather than drawing directly on object faces (which completely solves topological naming), although I wouldn’t attach the plane to the surface–just geometrically define the distance and angle in the spreadsheet and reference it directly (e.g. if I want a datum plane halfway up my object, I’ll make its height h/2)








  • TeaEarlGrayHottoTrees@lemmy.worldLooking for a new dry herb
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    11 months ago

    Arizer. Solid Canadian company, they’ve been making vaporizers for two decades, and they have a wide selection of different types.

    My (original) Arizer Air has gotten more use than I’m willing to admit over the past 5 years, and while it’s starting to show its age, but still working without a hitch. If it gave out tomorrow, I’d go order the new Air (2? Max? not certain) with USB-C charging and a digital display, although neither of those features are essential!






  • TeaEarlGrayHottoAsklemmy@lemmy.mlCan we simulate sound?
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    11 months ago

    Yes and no. As my physics professor used to say, all models are wrong, our goal is to make the least wrong model. It’s literally impossible to simulate every event. For example, what if there was an anthill under the area where the rock is dropped? Maybe that will affect the resulting sound? Maybe, but it’s not going to make a difference to the observer.

    We know enough physics to simulate a huge number of simultaneous events, but at some point a model becomes far too complicated (e.g. taking a week to run on a powerful computer), when a more simplified model will do the trick just fine. I personally compare it to FLAC and MP3–FLAC is of course best quality, but will eat up a ton of storage space, and MP3 (with compression) is good enough