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Alexandre Mainardi (Nuvem UAV)
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Moderator
Alexandre Mainardi (Nuvem UAV) left a comment for Guilherme Morelli
"Seja bem-vindo Guilherme"
May 30

Developer
John Arne Birkeland commented on Alexandre Mainardi (Nuvem UAV)'s blog post 3D Printed Halbach array Motor. 600W, over 80% efficiency!
"Yeah, I was thinking the same. Integrating parts of the motor into the gimbal structure would be interesting."
May 29
Andrew Rabbitt commented on Alexandre Mainardi (Nuvem UAV)'s blog post 3D Printed Halbach array Motor. 600W, over 80% efficiency!
"Takes a fair bit to crack the 90% efficiency mark for a BLDC motor.  Most are peaking shy of 85% and some a long way. Impressive job though.  I suspect that 3D printed halbach array motors might have more use in gimbals - potentially as…"
May 28
Tom Jacobs commented on Alexandre Mainardi (Nuvem UAV)'s blog post 3D Printed Halbach array Motor. 600W, over 80% efficiency!
"This is amazing! It shows how far 3D printing and home electronics parts building has come."
May 26
Gary McCray commented on Alexandre Mainardi (Nuvem UAV)'s blog post 3D Printed Halbach array Motor. 600W, over 80% efficiency!
"Hi Rob, What props / diameter / RPM / thrust are 75% efficient? At any single speed, that is extremely high efficiency for a prop - in hover? I am not doubting you, just want to know. Best, Gary"
May 24
Charles Blouin commented on Alexandre Mainardi (Nuvem UAV)'s blog post 3D Printed Halbach array Motor. 600W, over 80% efficiency!
"You are right, I meant that the motor itself can be 90%+ efficient when the prop generates a torque and speed in the most efficient torque-speed region of an efficient motor."
May 24
Rob_Lefebvre commented on Alexandre Mainardi (Nuvem UAV)'s blog post 3D Printed Halbach array Motor. 600W, over 80% efficiency!
"Prop efficiency should not be included in the motor efficiency figures.  Also, it would be nearly impossible to see prop efficiencies near 90%. Highest I've seen is 75%."
May 24
Charles Blouin commented on Alexandre Mainardi (Nuvem UAV)'s blog post 3D Printed Halbach array Motor. 600W, over 80% efficiency!
"Motor vendors are often optimistic ;) But you can get over 90% mechanical efficiency with the right motor prop combination."
May 24

MR60
Hugues commented on Alexandre Mainardi (Nuvem UAV)'s blog post 3D Printed Halbach array Motor. 600W, over 80% efficiency!
"Impressive work! What's the motor weight and how does it compare to standard BLDC motors of same wattage ?"
May 24
Rob_Lefebvre commented on Alexandre Mainardi (Nuvem UAV)'s blog post 3D Printed Halbach array Motor. 600W, over 80% efficiency!
"Yes, incredible work.  And I love to see real practical applications of high-performance 3D Printing. But I'm curious about the efficiency numbers. 80% seems to be pretty low compared to typically claimed BLDC efficiency of 92%.  Is…"
May 24
Marcus Wright commented on Alexandre Mainardi (Nuvem UAV)'s blog post 3D Printed Halbach array Motor. 600W, over 80% efficiency!
"If this heats up much I suspect there will be issues."
May 23
Charles Blouin commented on Alexandre Mainardi (Nuvem UAV)'s blog post 3D Printed Halbach array Motor. 600W, over 80% efficiency!
"3D printing looks like an awesome way to prototype!"
May 23
Gary McCray commented on Alexandre Mainardi (Nuvem UAV)'s blog post 3D Printed Halbach array Motor. 600W, over 80% efficiency!
"Very impressive build Alexandre.Could you let us know how the operational efficiency compares to a normal brushless motor?"
May 23

Moderator
Alexandre Mainardi (Nuvem UAV) posted a blog post

3D Printed Halbach array Motor. 600W, over 80% efficiency!

Not satisfied with the specs of off-the-shelf brushless DC motors? Looking to up the difficulty level on your next quadcopter build? Or perhaps you just define “DIY” as rigorously as possible? If any of those are true, you might want to check out …See More
May 23

Moderator
Alexandre Mainardi (Nuvem UAV) left a comment for Rafael Peres
"Seja bem-vindo Rafael"
May 3

Moderator
Alexandre Mainardi (Nuvem UAV) replied to Philipp's discussion Looking for NDVI sample data from plantations for research project in the group Agricultural UAVs
"Hi Philipp, please send me an personal message, i will provide some true NDVI samples for you"
Apr 28

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About Me:
Nuvem.in / Batmap Developer
Please tell us a bit about your UAV interest
GIS
Hometown:
São Paulo

Alexandre Mainardi (Nuvem UAV)'s Blog

3D Printed Halbach array Motor. 600W, over 80% efficiency!

Posted on May 23, 2017 at 6:39am 12 Comments

Not satisfied with the specs of off-the-shelf brushless DC motors? Looking to up the difficulty…

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Drone Market Strategies – Partnerships and acquisitions of the dominant players

Posted on December 16, 2016 at 10:18am 3 Comments

"The drone market today can be described as a melting pot of different technologies, where combinations of hard- and software components and service features are provided to the end user. In order to create sustainable success in this extremely fast moving market it is…

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Track air quality in London with Plume’s Pigeon Air Patrol!

Posted on March 21, 2016 at 8:35pm 7 Comments

Thanks to 12 air quality monitoring stations in Central London, the Plume Air Report lets Londoners track average pollution levels in their city. But do you know what you breathe in your borough?…

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PID Gains explained like never before!

Posted on July 27, 2015 at 6:30pm 11 Comments

[IEEE CSS Video Clip Contest 2015 Submission]

This is a video introduction to controlling self-driving cars, specifically using PID-control. Special emphasis is placed on how the proportional, integral, and derivative gains affect the performance of the vehicle.



Music:…



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