Team 254 Presents: Dropshot Technical Binder 2016

[Cory]

Originally Posted by asid61

I felt myself shying away from that wheel...
Out of curiosity, does it explode if you run it without the wire, and if so how did you find out?

For us it was less about keeping the wheel from exploding and more about the fact that since we retrofitted the wheel into the shooter, the expansion would cause it to rub dramatically on the turret plate, without being safety wired.

In 2014 when testing with the same wheels we wanted to determine how much they expanded and make sure they were safe to use at those speeds. We mounted them to a shaft held in a collet chuck in our cnc mill, spun them up to ~5000-5500 rpm with no safety wire and measured the difference in size at speed vs static and saw no issues with exploding. That's substantially slower surface speed than at ~8k rpm like Devin's test though.