OK, so, I've got a PRT96 with the standard PC router.
On another thread about breaking bits, I got some advice to run the RPMs of the router slower and the speed of the shopbot faster. So I was running my PRT96 at 4 ips, taking a 1/4" deep cut into plywood, and it seemed to work just fine. Normally, I was running 1.5 to 1.75 ips before, and being able to double the speed of the 'bot is really, really great.
However, from reading other threads, I see that 3.4-4 ips is about the 'top end' for a PRT96 in terms of speed. Yet I see other folks posting that they are running 8, even 10 ips, and jogging at 30 (!). Is this because they are running an Alpha, or have a Spindle, or both? Or could I run my PRT96 at those speeds?
How do you know when you're pushing it too fast?