I am quite happy with the new CNC I have made.

But the main issue with the dremel is that it works great around 30’000RPM but has no torque at low RPM, and Low RPM are great for milling plastic otherwise it melts around the bit…

So I am building a PID controller based on a triac and an IR sensor to control any 220V AC spindle, this way the spindle will have the maximum torque at all speeds!

To be continued…