#robotics Logs

Aug 14 2020

05:20 AM Phrkd is now known as Phreaked
06:03 AM Phrkd is now known as Phreaked
10:41 AM mrdata_ is now known as mrdata
02:07 PM mun: anyone know why hardly any commercial/industrial rovers/carts use hoverboard motors? they're quite powerful and simple to assemble. it's motor + wheel, two in one!
02:08 PM veverak: something something vibrations/hard kicks to wheels not good for the motor?
02:09 PM veverak: afaik in CNC machines you should not attach motor directly to any axis
02:09 PM veverak: always use belt
02:09 PM veverak: because belts act as dumpeners and when the axis is hit, the motors does not suffer so much
02:09 PM mun: but hoverboards are sort of durable. or are they?
02:09 PM veverak: so I imagine motor inside a wheel ...
02:10 PM veverak: well
02:10 PM veverak: one thing is hoverboard with live expentancy 2 years and 2 days
02:10 PM veverak: second is commercial rover/cart that is A. expected to live longer
02:10 PM veverak: B. taking much bigger loads
02:10 PM veverak: the use cases are not comparable
02:12 PM mun: are vibrations bad for the motor because of potential damages to the brushes?
02:12 PM veverak: vibrations are one thing
02:12 PM veverak: forces on the axis are different
02:12 PM veverak: especially hard kicks
02:13 PM mun: yeah i guess
02:13 PM mun: makes sense
02:14 PM veverak: I mean, if you kick the motor axis with a leg you essentially create small 'space' in bearings
02:14 PM veverak: (forgot what is the correct english term...)
02:14 PM veverak: (backlash?)
02:14 PM veverak: that is probelmatic for something spinning at high rotations