Originally Posted by
ger21
You can always use a SuperPID with a router motor to get 5000rpm, up to the routers maximum.
As others have mentioned, using the right tools makes cutting plastics much easier, even at higher rpm's. Small tools will always be problematic, as the chips tend to pack into the cut more, and this is a big source of melting.
Commercial machine can mean many things. Smaller routers ma not be rigid enough to make that same cut, but should be able to make 4 passes at 100ipm or more, which would be 2.5x faster.
Larger commercial machines might be able to make that 1/8" cut at 200-300ipm, maybe even 500ipm. But these machines might cost $50,000-$100,000 or more.