Could you use something to detect when a turn gets slowed by a magnet? Probably dumb but, who knows?Important new update (2020/5/23)
Just finished my mid-term exam, and I have some good news and bad news for you guys:
Let's start off with good news:
The. Thing. Actually. Worked.
Yes, I build the first prototype and tested it. Although the whole setup was kind of crappy, it WORKED.
It turned out to be an impractical idea for speedcubing.
I finished 3D-printing all the parts around April, then got all the electronics ready recently. It worked just as expected.
But I instantly found out this idea is not good, and here is why:
With this failure, I will say that all smart cube ideas regarding to an external frame is probably a bust(in my limited knowledge, of course). But I can't deny it's a success anyway, and I will NOT stop developing next generation smartcubes until it becomes a reality.
- The biggest problem is HOW ACCURATE YOU WILL HAVE TO TURN THE CUBE. Because my setup(I have tried every sensor/magnet setup I could think of) is already at the limit of the detection range of the Hall sensor, you have to turn the cube PERFECTLY ALIGNED WITH THE SENSOR plus no corner cutting at all. By now, if you are a speedcuber, you know it's a bust.
- The cheap Hall sensors' data fluctuate easily, adding to the fact that it is already at detection limit, makes the whole thing very unstable and inconsistent.
Frame of the(already disassembled) prototype:
A hall sensor stuck on it and broke off when I tried to remove it, so I just leave it there. I recovered all the electronics BTW.
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