Our local high school has a 3520B that won't run. My understanding is that the problem began during a demonstration late last school year. The then shop teacher explored the problem and couldn't find any loose connections or obvious explanations. I don't know if he tested the on/off switch or rheostat/potentiometer but doing so is within his skill set. When I heard about the problem from the new shop teacher, I assumed it was one of the 'something's loose in the headstock' problems that Powermatics get, but my exploration didn't find any of the usual suspects. The prior shop teacher thought the VFD was the culprit. The rpm counter on the front lights up, so the unit is getting power.
Our local electrical engineer/Powermatic owner could easily identify the problem, but he unexpectedly passed away during the summer. Help.
We would appreciate you thoughts on causes and how to determine what the answer is.
Dean
Our local electrical engineer/Powermatic owner could easily identify the problem, but he unexpectedly passed away during the summer. Help.
We would appreciate you thoughts on causes and how to determine what the answer is.
Dean