Quote:
Originally Posted by brycen66
If they do make it illegal it will not be because of the unsafe nature of spraying canned air but instead because of the possible unprotected surges of current. I think it is much more likely that the use of a fan on the breaker will be made illegal.
That being said if you are going to sense current, you should make your own sensor instead of using the built in sensors in the power distribution panel. This is because from my understanding the power distribution panel only has current sensing on the outputs and not the input. You should put the current sensor on the main pole of the battery, it should also be inductive instead of resistive. I made one last year in twenty minutes with parts that cost 3-4 dollars.
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One team will come up with a clever way to keep the breaker's temperature super cold for the duration of the match, then FIRST will likely ban these sorts of modifications. In my opinion, the freeze spray is totally illegal from two rules. FIRST knows that teams are doing this, and although they haven't said anything about it last season, I wouldn't be too surprised to see an addition disallowing methods to change the temperature of breakers.
The first is G3. Deliberately freezing a safety device so it does not operate as intended seems like it may qualify as an unsafe modification in the eyes of some inspectors. It also seems to violate R64, because it can easily be considered to be tampering, modifying, or adjusting. It's clear that they don't want you changing the "performance and specifications of the device".
Also, could you clarify about the input/output comment for the current sensor? You should be able to sum all the drive/big motors up, and everything else should only end up being a few amps in total.