[teyc]

I read a story about Dreame. The founder worked in aerospace, but wanted to make a mass-produced motor with aerospace standards. So he modelled air flow using aerospace tools, built the motor to tight tolerances. Conventional vacuum motors run at 30k rpm, his runs at 100k rpm. Then he standardises on a single motor, for all his devices, robovacs, stick vacs etc, so he gets scale.

[4gotunameagain]

Yeah that's marketing. There's no such thing as aerospace only CFD, and all tolerances are subject to cost/benefit trade offs.

They might be great designers and talented engineers, sure.

[IshKebab]

Dyson's stick vac motors have been above 100k RPM for almost two decades.

[NetOpWibby]

Well now I’m sold

[nrhrjrjrjtntbt]

Dont be. Source: tried roborock and dream. They are both useless because you spend so much time troubleshooting it dealing with stuck issues you may as well get the cheap vac out.