A trumpet is a lot weaker in that direction than you're assuming, and a plywood arcade cabinet is a lot stronger than you're giving it credit for. I'd be very

A trumpet is a lot weaker in that direction than you're assuming, and a plywood arcade cabinet is a lot stronger than you're giving it credit for. I'd be very surprised if a bunch of thin brass tubes transmitted enough for force to cause any deformation in an arcade cabinet when being crushed in that direction.