Dremel is varying in rotation, even if it should hold constant speed.
Dremel is set to (any) constant speed, but it varies in rotation speed when turned on. (Going faster and slower when speed dial is not touched at all)
If I hold the device tightly in vertical position, the varying speed seems to be fixed.
I’m not sure how trouble shoot this, or which part to replace.
Any help would be appreciated :)
Es esta una buena pregunta?