u/zwiebelspaetzle

TL;DR should an unpowered motor with brushed removed spin completely freely?

I'm repairing a DW735 planer. I ordered an aftermarket motor, which arrived damaged in transit--the rotor had been pushed forward and broke the cast aluminum housing cap. So I took the housing from my dead motor and put it on the new motor. When I spin it by hand, with brushes removed, I can feel little bits of resistance. It feels like maybe the armature is slightly contacting the field as it spins. I don't feel this resistance when I hold the rotor by the bearings and spin, so I don't think it's the bearings.

Is this a problem? If so, can I fix it?

Thanks!

https://preview.redd.it/udwyjmojvp0h1.png?width=2816&format=png&auto=webp&s=21a4db529d4e2e35984db5d9e7235e0f7bbda3b4

PSA: if you're trying to connect an X32 to TheatreMix on a Mac, check that TheatreMix is allowed to access the local network in System Settings->Privacy & Security->Local Network. Save yourself the hours I lost :)