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Zeitpunkt              Nutzer    Delta   Tröts        TNR     Titel                     Version  maxTL
Mi 10.07.2024 00:03:44    28.493       0    2.070.455    72,7 Mastodon                  4.2.10     500
Di 09.07.2024 00:03:52    28.493       0    2.069.598    72,6 Mastodon                  4.2.10     500
Mo 08.07.2024 00:04:00    28.493       0    2.068.843    72,6 Mastodon                  4.2.10     500
So 07.07.2024 00:03:47    28.493       0    2.068.058    72,6 Mastodon                  4.2.10     500
Sa 06.07.2024 00:01:20    28.493       0    2.067.445    72,6 Mastodon                  4.2.10     500
Fr 05.07.2024 00:03:48    28.493       0    2.066.632    72,5 Mastodon                  4.2.10     500
Do 04.07.2024 00:01:26    28.493       0    2.066.734    72,5 Mastodon                  4.2.7      500
Mi 03.07.2024 00:01:55    28.493       0    2.066.054    72,5 Mastodon                  4.2.7      500
Di 02.07.2024 00:03:56    28.493       0    2.065.295    72,5 Mastodon                  4.2.7      500
Mo 01.07.2024 00:04:54    28.493       0    2.064.736    72,5 Mastodon                  4.2.7      500

Mi 10.07.2024 20:22

Physical gaussian surfels - such a cool idea:

Edge robots

It would be interesting to build a reconfigurable robot out of a large number of linear actuators making up the “edges” of a triangulated shell. A simple icosahedron could wiggle around like a more rigid version of NASA’s Super Ball Bot, but with a few hundred edges, you could make a mesh that turns into a low-poly video game character. And walks. With thousands of tiny edges, you get something that starts to look like movie nanotech.

Coordinating hundreds of actuators that are tightly constrained would be challenging, but not intractable. Edges could only grow or shrink by less than a factor of 2, and as a shell, you would have to prevent the surfaces from ever flattening out, where they would be unstable. If you give up on being just a shell and add internal links, the mechanical performance could be greatly improved, and you could freely change convexity.

Analyzing the range of animations you could keyframe with a given topology is an interesting problem even ignoring dynamics; learning to walk would be a fairly aggressive MuJoCo simulation task.

There would be a strong desire to have specialized links of various sizes, but you could do quite a lot with a single universal edge and vertex set. I don’t know if it would actually be good for anything, but I was thinking about Iron Man armor…

Edge robots It would be interesting to build a reconfigurable robot out of a large number of linear actuators making up the “edges” of a triangulated shell. A simple icosahedron could wiggle around like a more rigid version of NASA’s Super Ball Bot, but with a few hundred edges, you could make a mesh that turns into a low-poly video game character. And walks. With thousands of tiny edges, you get something that starts to look like movie nanotech. Coordinating hundreds of actuators that are tightly constrained would be challenging, but not intractable. Edges could only grow or shrink by less than a factor of 2, and as a shell, you would have to prevent the surfaces from ever flattening out, where they would be unstable. If you give up on being just a shell and add internal links, the mechanical performance could be greatly improved, and you could freely change convexity. Analyzing the range of animations you could keyframe with a given topology is an interesting problem even ignoring dynamics; learning to walk would be a fairly aggressive MuJoCo simulation task. There would be a strong desire to have specialized links of various sizes, but you could do quite a lot with a single universal edge and vertex set. I don’t know if it would actually be good for anything, but I was thinking about Iron Man armor…

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