Hello, I have seen hacks for disabling the speed controller of the dewalt but since it has feedback control should be a way to reduce the minimum speed without adding any external controller.
Is that feasible?
Get a VFD:
Yes but the Dewalt already is a closed loop system, I don’t want to hack my only unit (and it is not that easy to get in my country, had to order one from UK) but it should be doable 