Quote:
Originally Posted by Chris is me
I think expecting teams to build structures to do basic tests with in their pit is a bit much, really. Making this "no wheels on ground" rule isn't worth putting that burden on teams when any number of much easier solutions will definitely prevent this problem (code, breakers, etc).
Getting the relative height of the 2x4s vs the platform correct is also tricky (2x4s must be taller than wheel ground clearance, platform has to be difference between two)
The PDB is supposed to be at least clearly visible anyway (R29) and should be somewhat accessible. If it isn't, then you can disable the drive in code, use the e-stop etc. In our case, we run through a pre-match systems check before queueing, which provides an opportunity to show this problem.
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"no wheels on ground" is an easy solution to the previously stated problem and is how we handle it, not a rule suggestion. I think driving on the floor in the pit is wrong. There is not enough space.
The idea of relying on code is fine but it doesn't remove the human error from the problem. The issue of a runaway robot would probably a software problem anyway. It also doesn't account for an electrical failure causing the problem.
The breaker is the next best in my opinion but it's to easy to pull out or replace the wrong one and is sill subject to a more catastrophic problem, albeit less likely.
Also if a team can't think up a simple plywood and 2x4 platform how did you build a robot with a pickup system?