This says a lot.
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Are there wires visible going around the bushings to the baseplate? Do wires go through the pivot?
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I think he means this, i want to know too
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No wires. Two ball bearings and a pin in the pivot cup is all. Time will tell how these hold up
Alright this is all y’all get before my review drops otherwise I might as well just write it as a reply here 
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Jaykay Group buy? 
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What? That’s an odd place for those to be there. Was gonna ask if the hangar can fit on other baseplates but if the baseplate is part of the connection then I guess that’s out of the window. Does the baseplate use the new school or old school mounting holes?
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my guess is that it’s for wireless charging since the coil is in the baseplate
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The ESC is in the baseplate too I thought.
that would make sens indeed
Its all in the hanger
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interesting this presentation from 2018 includes a reference to the jaykay truck
https://www.automotive-iq.com/content-auto-download/5c0fd23de3899175100b066a
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I glanced through the actual paper that these guys wrote. Very cool stuff even though I don’t understand it.
@malJohann so far so good. Very few remotes work here but this seems to be one of them so far
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I just read through it too now that you mentioned it, and wow… There is some crazy stuff going on. Iron-less windings that put the copper right up next to the magnets.
Never seen it before but very interesting
@hummieee did you read through the powerpoint in the past?
These are impressive numbers
These motors would be super interesting to see in something like the MIT cheetah or Spot
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i think the claims of such high power is due to liquid cooling.
i dont get the “combined winding” thing and claims of double power and torque sound unreal. i dont believe you can get around a slotted motor’s ability to greatly increase the magnetic field strength by magnetizing the iron. slotted motors like we have, the drawback of increased iron losses arent a problem if youre spinning it slowly, as we are. No cogging is nice though. if its slotless its still relying on the iron except its now behind the winding and in essence its a giant airgap and therefore low torque as a trade for no cogging. if its coreless, no iron, its gunna be super low torque unless its a huge diameter and has to be spinning fast to make any decent power.
if you had a fixed volume to make a motor and gearing wasnt an issue then maybe an ironless motor could produce more power and youd spin it maybe 40 times faster than a motor with iron. eventually the copper windings (or silver!) would produce enough eddy currents and skin effect that greater speed would be detrimental. and bearing and windage losses also increase with speed, assuming the bearings can go that fast. that’s fine but how do you deal with a motor shaft spinning a million rpm? then youre adding a huge gearing and takes space and losses.
but for the volume of the motors we use now…we could get way more power with more speed even with them being slotted. iron losses are so small. worth looking on the bldc tool with full speed no-load to see. if only could gear it down.
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Hm I didn’t pay as much attention to their RPM ratings. Either way, 4.8Nm of torque is significant for that size they depict here
I don’t fully believe in the doubling either without solid evidence to back it up
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i dont believe theyre getting even near the potential torque output of a slotted motor of a given size and electrical resistance. the motor km telling torque to copper losses will surely be really low without iron to develop the torque. if you find anything that shows what they claim please post it. and that “combined winding” thing makes no sense to me. hummm… claims of double the torque of slotless because now it has small slots!
without iron to get the same torque that’s totally possible, but with like 1000 loops of copper where with slots its maybe 10 loops of copper around the tooth. so same torque but 1000 loops of hair thin wire with huge electrical resistance vs a fat ten. the ironless can produce the higher torque very inefficiently and will burn up. if slotless and with iron just behind the windings its the same problem at least to a much lesser degree.
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Asking questions helps you write a more thorough review 
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I read that halbach arrays obviate the need for rotor back iron as there is no leakage flux to contain.
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