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Unlike bake pads, these brushes are conductive. So their dust should react to magnetic fields, which are everywhere in these motors. I would expect the dust t
by sandworm101 4y ago
Unlike bake pads, these brushes are conductive. So their dust should react to magnetic fields, which are everywhere in these motors. I would expect the dust to settle or cake onto any number of other metal surfaces rather than drift through the air like brake pad dust.
- mkj 4y agoOr add magnetic plugs to capture the dust. https://www.lislecorp.com/oem-products-division/magnetic-plugs/ https://www.lislecorp.com/oem-products-division/magnetic-plu...
- cpuguy83 4y agoEven the title says "No magnets"
- sandworm101 4y agoNo magnets doesn't mean no magnetic fields. I believe they were referring to permanent magnets. An electric motor without any magnetic fields would be a very odd device.
- sbaiddn 4y agoAnd a motor with a static magnetic field is just as weird.
- sandworm101 4y agoIon drive thrusters. Not sure how one would translate them into a car, although there have been some on model aircraft, but they are a type of motor with a static magnetic field.
- cpuguy83 4y agoThanks for the clarification!
- entropicgravity 4y agoConductive metals does not necessarily also mean magnetic. Aluminium is just one example, conductive but not magnetic.
- slackdog 4y agoThe brushes are almost certainly graphite, which actually isn't a metal. Also graphite is diamagnetic, so strong magnets actually push it away.
- GeorgeTirebiter 4y agoSince we're speculating, the brushes could also be some harder material, with Carbon Nanotubes impregnated, or graphene infused and coated, etc. Also, although I don't have the numbers for your issue about strong magnets pushing it away, I've found you need REALLY strong B Fields to do this. In other words, are we sure this is an effect that is at play here? (I'm asking)