Powerful Hand Made Brushless Motor

This is a motor designed to run a weapon on a combat robot. It's a brushless design and will swing a 2 or 3 pound disk with carbide inserts at about 5,000 rpm. I'm using this prototype as an airplane motor. Note: YES the test is dangerous, but I decided to make a video that wouldn't be boring. As a result I decided to edit and keep conversations to the design of the motor.
John

Category:

Science & Technology

Tags:

• Brushless Motor
• Airplane Motor
• DIY Motor
• DC Motor

[arthuracosta]

john

i'm wondering how long the battery will it last?

and with that awesome power it's nice to be installed in rc copter.

[DadHav]

@arthuracosta

This setup would probable provide about 10 minutes of aggressive flight. Some have made big diameter flat motors for the helicopters. These can drive the blades without gearing.

J

[aquito04]

Wow so unsafe

[DadHav]

@aquito04

You really have to be kidding me! You race your car while you holding a cell phone to take pictures of the tachometer and speedometer and you say this is unsafe! Let me ask you a question. How many people do you know who got hurt woth a model airplane motor? Did you ever hear of anyone getting hurt in their car when they were showing off foolishly?

J

[MrROTD]

That would power a really large plane I imagine. I have an ultra micro brushless set-up, it's just a 2500kv motor by e-flite and it puts out an amazing amount of power for it's size. This thing must be outrageous and I can understand the comments about safety, that thing could chop your fingers off if anything goes wrong, but hey it's your fingers just sayin.

[DadHav]

@MrROTD

Again, I don't consider it dangerous. You have small planes but did you ever watch a guy start a motor on a 70 pound airplane by flipping the prop by hand? Another thing is when a guy has to tune a large gas or nitro engine by adjusting the needle valve which is only a few inches behind the prop. Lastly this would be only another boring video if I would have stuck the fixture in 40 pound vise. But hey. I appreciate your concern. Thanks for watching.

John

[VapoxTutorials]

imagine that on a rc plane!

[Reddogbn]

Hi ,sure thats not off a blender....Nice demo

[TinManPower]

Hi DadHav-you are a true craftsman-very very neat.

[kdc43]

That's some "electric shaver" you have there! Seriously, I can't believe the amount of power that little thing has......it kinda scares me. 300 watts? I can do that pedaling my bike.....for about a minute.

[RcLento]

you can take off with second one :-)