• Welcome to the Speedsolving.com, home of the web's largest puzzle community!
    You are currently viewing our forum as a guest which gives you limited access to join discussions and access our other features.

    Registration is fast, simple and absolutely free so please, join our community of 40,000+ people from around the world today!

    If you are already a member, simply login to hide this message and begin participating in the community!

self solving cube

xyzzy

Member
Joined
Dec 24, 2015
Messages
2,881
There's also a reconstruction, btw. It's kinda hard to see what's going on in the video because the cube keeps moving all over the place.

/* Scramble */
x y2 F U' L' D B' R2 U2 L2 D2 U2

/* Solve */
(F' y) (F2 y') u U' (F2 y') B' (R2 y') // cross
L (F2 y2') (R' y) (R2 y') (R y') (L' y) (R' y) // first slot
(R y') u (R2 y') u' (L y') L' (F' y) B // second slot
U (L2 y2') U' (R' y) U (F y') U' // third slot
R2' B (l' y) u' (R y') u // last slot
(R' y) u2' (R y') u (R' y) u (F2' y) // OLL
D z u' L U' (L y') U F' u (F2 y') (B y') U' (L' y) // PLL

// View at alg.cubing.net
 
  • Like
Reactions: pjk

SenorJuan

Member
Joined
Sep 26, 2014
Messages
515
Location
U.K
It looks to have radio-control model servo's, repurposed. And not the tiniest servo's, either. There's some pretty small light servo's out there, sub-5 grams, using motors that are typically found in cellphone vibration units. But they're perhaps not strong enough for this application, so he's had to wedge in some beefier ones, judging by the motors that are visible.
Most of the small green PCB's are simply 'break-out boards' that adapt the tiny 10-pin chip to large solder-pads that make wiring them up easier.
My hunch is the cube is 'dumb', and receives it's instructions from outside, via Radio or Infrared link.

It's a neat piece of engineering, though. I'm curious as to what feedback method is used to control the position of the centre-pieces. I suspect it's a simple rotary shaft encoder on the output shaft, something like the Bourns ones:
https://uk.rs-online.com/web/p/rotary-encoders/6928610/
The small boards with the 10-pin IC on will be the motor controller, driving the motor, and reading the encoders outputs for feedback.
 
Last edited:
  • Like
Reactions: pjk
Top