More tests on coils

First box prototype

Zennedine finds a way to use our coils, so I tried to make a first box to check if it will not collapse. I made this and I checked if the marble flip or not, and it works.

Coils no more available

When we begin our project, we ship some coils, the 74458303 but in a short time, we cannot ship enough coils for the project. So I tried with the same configuration to use the 74458304 coils, and it works, even if there were more edge effect (the nearest coils flip sometimes). With these coils, we need only 0.59A… Read more

Working on a pre-alpha v0.01 backbone

After finding a configuration that could do the job as discussed on the previous post, we needed to validate it.

To do so and as such, to decrease randomness and have the best repeatability possible, I started working on some kind of mount. After a little while I had a first version of this and did some measurement with the Hall sensor. I noticed that the positioning of the Hall sensor was unpractical as it was free to move.

That’s why I did some laser cutting and cut a hole to fit the breadboard in it in a wooden plank, just under the coils.… Read more