3 ms·

They didn't even improve actuation. Instead, they appear to have used a specially-constructed cube (no doubt designed to be suited for their machine) and litera

by saulrh 10y ago

They didn't even improve actuation. Instead, they appear to have used a specially-constructed cube (no doubt designed to be suited for their machine) and literally bolted their actuators to the center caps. I'd like to see them do this with an unmodified vanilla cube like the other cube-solving machines I've seen. If you want impressive actuators, check out modern pick-and-place machines [1]. https://www.youtube.com/watch?v=S8qkaTsr2_o https://www.youtube.com/watch?v=S8qkaTsr2_o

eridius 10y ago
Luc suggests that it looks like an off-the-shelf cube: https://news.ycombinator.com/item?id=12935104 https://news.ycombinator.com/item?id=12935104
- saulrh 10y ago
  Hmm, I guess that that's not a factor, then. Bolting the caps to the actuators was the bigger trick anyway. Compared to cages or grippers, dramatically reduced inertia and much stiffer, so less damping required and it's easier to dump energy back into the actuators. I'm half-tempted to call that "cheating", but I don't know what the actual rules are - I doubt that this robot can "put down" or "pick up" the cube in less than a minute or two. The older version had the cube actually soldered in.
  - rimantas 10y ago
    It is not a new idea and now need to bolt anything, just drill some holes: http://www.ibtimes.co.uk/watch-worlds-fastest-rubiks-cube-robot-solve-puzzle-just-one-second-1539934 http://www.ibtimes.co.uk/watch-worlds-fastest-rubiks-cube-ro...
- mplewis 10y ago
  Confirmed – I have a MoYu Weilong stickerless at home. It looks identical to this cube.
nom 10y ago
Also, for awesome actuators, check out flying probes. Here a video from 2008, I think it's not sped up but I can't confirm: https://www.youtube.com/watch?v=EHsZQ1WiojE https://www.youtube.com/watch?v=EHsZQ1WiojE edit: here a better impressions of flying probes, but not as fast https://www.youtube.com/watch?v=fjmjYVNuLEE https://www.youtube.com/watch?v=fjmjYVNuLEE

by saulrh 10y ago

eridius 10y ago

Luc suggests that it looks like an off-the-shelf cube: https://news.ycombinator.com/item?id=12935104 https://news.ycombinator.com/item?id=12935104

saulrh 10y ago
Hmm, I guess that that's not a factor, then. Bolting the caps to the actuators was the bigger trick anyway. Compared to cages or grippers, dramatically reduced inertia and much stiffer, so less damping required and it's easier to dump energy back into the actuators. I'm half-tempted to call that "cheating", but I don't know what the actual rules are - I doubt that this robot can "put down" or "pick up" the cube in less than a minute or two. The older version had the cube actually soldered in.
- rimantas 10y ago
  It is not a new idea and now need to bolt anything, just drill some holes: http://www.ibtimes.co.uk/watch-worlds-fastest-rubiks-cube-robot-solve-puzzle-just-one-second-1539934 http://www.ibtimes.co.uk/watch-worlds-fastest-rubiks-cube-ro...
mplewis 10y ago
Confirmed – I have a MoYu Weilong stickerless at home. It looks identical to this cube.

nom 10y ago

Also, for awesome actuators, check out flying probes. Here a video from 2008, I think it's not sped up but I can't confirm: https://www.youtube.com/watch?v=EHsZQ1WiojE https://www.youtube.com/watch?v=EHsZQ1WiojE edit: here a better impressions of flying probes, but not as fast https://www.youtube.com/watch?v=fjmjYVNuLEE https://www.youtube.com/watch?v=fjmjYVNuLEE