• finitebanjo@lemmy.world
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    2 months ago

    Okay but like a shim or just a broken discarded piece of 2x4?

    Or I guess the chaotic evil version of this is a twig with leaves on it.

    • Captain Aggravated@sh.itjust.works
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      2 months ago

      Lego instructions > IKEA instructions. While I think both are excellent at language free building instructions, Lego are the true masters. IKEA targets adults with their instructions and are seen by a lot of people as tedious and confusing, Lego targets children and they make universally beloved building toys.

  • GOTFrog@lemmy.dbzer0.com
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    2 months ago

    Jokes on you I had to go buy a kitchen sink faucet and replace it 1st thing in the morning before going to bed for my night shift cause ours broke yesterday evening 9pm. I’m a IT guy with 0 plumbing skill.

  • weeeeum@lemmy.world
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    2 months ago

    As a woodworker, I’d do the same. Granted it would be a piece of wood with matching dimensions to the foot, but still just a piece of wood.

  • daniskarma@lemmy.dbzer0.com
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    2 months ago

    Do you know for a four legs table no matter the floor it sits on. There is always a rotational position where all it’s legs touch ground at the same level.

    For circular tables that are uneven you can just rotate the table until it sits right.

    For square tables you may check the 90° angles to see if you are lucky.

    Edit: This theory works with even legs + uneven (bumpy) floors. For your own safety do not test this the other way around.

    • hydrospanner@lemmy.world
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      2 months ago

      That’s just so wildly not true that I can’t believe you didn’t work it out for yourself in the time it took you to type that up.

      To test your theory, envision a floor that is a perfectly level pane of glass. Then picture a 4 legged table where one leg is just an eighth inch shorter than the other 3.

      You can spin that table all day and there’s never going to be a position where it doesn’t wobble.

      • Captain Aggravated@sh.itjust.works
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        2 months ago

        @[email protected] is citing a mathematical proof that basically states if you have a table whose feet form 4 points on a flat rectangle, that table can find a stable resting spot anywhere on an uneven surface only by rotating the table, you do not have to translate the table, only rotate it.

        Your example, while practical, breaks that model because it only works if the continuous surface is uneven and the four independent points are coplaner. If you make the reverse true, with a table that has 4 even legs and put it on a floor that can be described as two triangles (what you would get if you connected 3 even length legs and one shorter) you could rotate the table to find somewhere all four legs touch.

        This is why it is very important for us woodworkers to make table and chair legs the same length, or failing that, add adjustable feet, becasue us carpenters don’t know what the fuck we’re doing.

        • hydrospanner@lemmy.world
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          2 months ago

          Interesting that it works the other way…I assume that in that scenario, there’s also no guarantee that the table would be anywhere close to level in whatever position eliminates wobble?

  • rockerface 🇺🇦@lemm.ee
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    2 months ago

    A cool thing is, you can achieve the same effect by rotating the table in a circle (if possible) until you find a stable angle, since for 4 points on a circle there has to exist at least one rotation angle where they are on the same elevation.

    • Webster@lemmy.world
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      2 months ago

      There’s no guarantee you can draw a circle through the bottom of the four legs of a table (opposite legs can be off in the same direction). Also, most floors are not perfectly flat, therefore you can’t assume the floor is at one elevation.

    • TJA!@sh.itjust.works
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      2 months ago

      Problem is, that you might have to move the table legs through the floor to archive the desired result

    • NerdyPopRocks@lemmy.world
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      2 months ago

      This requires the legs to be all the same height and the floor to cause the wobble. That doesn’t happen often irl, but I’ve done it a few times and it always makes me happy when it works

    • Whelks_chance@lemmy.world
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      2 months ago

      Is there mathematical proof for this? It sounds like it could be true, but also sounds like you could actively create a floor which it wasn’t true for

        • mipadaitu@lemmy.world
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          2 months ago

          It does work in the real world, as long as the floor is the problem, and the table is perfect.

          Most of the time at a restaurant, it’s the table that’s been beaten up and is no longer even.