They've had to really invest in the cooling systems on the people-making-fun-of-you counting system to prevent the frequent overheating, which could ignite the main batteries.

They sure do love to scream about rap, but pretty sure none them know that 1A RAPPS

Other plastics are recommended that will cause fires, and notably absent is acrylic AKA plexiglass, which is the primary plastic used in laser cutting.

I ran into this in a scary way yesterday. I couldn't remember if polypropylene was usable in a laser cutter, so I searched and this was one of the first results: ready-tools.com/laser-cuttin...

Laser cutting polyvinyl *chloride* ➡️ chlorine gas that kills people and destroys machinery. Not the same.