First look at these monsters coming soon!
My dream of an airbot-hammock might just come true after all...
Here is the request for input on developing a new line of motors "tailored for UAV applications"
You need to be a member of diydrones to add comments!
Comments
Renato,
Good point, although I wouldn't want a rolling shutter or my IMU anywhere near my electric bike motors : )
Those big motors above make a dramatic image for sure, but I assume most of our builds will stick with the smaller sizes. As Robert mentions above, any craft using differential thrust to maneuver -- needs to keep the inertial loads under control.
Of note: Gary McCray is working on a control method that doesn't have this concern.
Back to the electric bikes for a moment-
My latest e-bike build is a cargo hauler with a 2kWh LiFePO4 battery pack @ 50V. This will be used to get my flying gear onto location for mountain bike filming, and power all my ground station needs while shooting. I'm also going to incorporate a small folding PV array into the mix. I'll make a post about it soon.
I think such motors ARE already in the market... the electric bike motors, have pole count in the same ballpark, and direct drive a 26" wheel.
@R.D.
I think its a smart move for the company to not assume it knows what the people want, but I think a few hours on RCGroups could give them all of the infor they needed. Right now there are a quite few active threads on rewinding motors for various uses.
Basically the company is saying they are not going to try to determine the operational characteristics of undesigned aircraft - 'tell us what you want, we will build the motor for it'.
Most end users (media applications) would specify flight time and payload lifting ability. Everything else, to them, is just details.
It is interesting that the design group would cast their net to the community at large. Is this smart management or something else? All the parameters to crunch the numbers are in motor design software. They just want to know how many motors they can make at that size. Is there a real market for them?
-=Doug
I'm definitely curious to see if a multirotor that big will work. There's a theoretical limit where you can't accelerate/decelerate a propeller fast enough to stabilize a quad. Will require variable pitch. Once you go there, what is the point of a multi-rotor?
Yes Gary, that sounds like a good starting point, tacos are nothing.
As these large motors come into the market -- I look forward to seeing the batteries that can feed them.
Considering their 4014 is 330KV and manage about 500 watts practical continuous power and about 6 pounds of thrust I'd guess these may be under 200KV and over a thousand watts and at least 12 pounds of thrust.
Maybe not a hammock, but a 20 pound plus payload with a quad or 30+ with a Hex should be possible.
Probably manage a dozen Pizzas so the first practical (well maybe not) Pizza copter?
Wayne,
I'm not T-motor. I'm about to be a customer though.
Those big motors are probably pretty dang slow, a 29" prop tip will go super-sonic at ~ 8,700 RPM. Figure at least 6s(25.2v) to keep the amps somewhat reasonable, less than 350kv for sure. Probably a good bit lower than that even, it would be good to run power systems of this size at closer to 12s or something like that.
I didn't see any specs on these, but I didn't really look. My immediate needs are much more reasonable : )
wow very awesome going to have to poor through your website. see what else you got. whats the Kv on those bad boys?
So will I.
-
1
-
2
-
3
-
4
of 4 Next