Search found 34 matches

by amazingdiyprojects
Apr 22 2019 3:25am
Forum: Electric Aircraft
Topic: Manned multirotor
Replies: 15
Views: 1747

Re: Manned multirotor

Haha, OMG! Seriously, read up, learn, think, reflect, THEN judge/comment. You are 90% clueless. Its a penta system, all of them running simultaneously. Obviously not safe by any conventional means, but the safest DIY manned multi currently out there as far as I am aware of. I have turned off 16 moto...
by amazingdiyprojects
Apr 21 2019 3:07am
Forum: Electric Aircraft
Topic: Manned multirotor
Replies: 15
Views: 1747

Re: Manned multirotor

A speed test has been on my list for a long time, and now is finally the time. The structure is optimized for light weight and hovering flight, which becomes apparent in this speed test where the back side of this design becomes apparent, namely high drag. Sitting in the chAIR it fees pretty speedy ...
by amazingdiyprojects
Mar 29 2019 6:53am
Forum: Large EV General Discussion
Topic: 2m diameter wheel inflatable car-ish build!
Replies: 6
Views: 1496

Re: 2m diameter wheel inflatable car-ish build!

Surprising test result when measuring the maximum traction force on water!

by amazingdiyprojects
Mar 17 2019 2:53am
Forum: Motor Technology
Topic: Power tool mod. -series wound to PM DC motor
Replies: 0
Views: 174

Power tool mod. -series wound to PM DC motor

Making a simple AC power tool hack to learn something about these
wonderful every-day-marvel machines!

by amazingdiyprojects
Feb 27 2019 2:57pm
Forum: Large EV General Discussion
Topic: Large EV? - I have one of those!
Replies: 7
Views: 987

Large EV? - I have one of those!

-Hello!
I Just want to share my latest creation with all EV enthusiast here!
There is allot of background in episode 1 for any one intrigued, this is episode 7 :D






Episode 1:
by amazingdiyprojects
Feb 16 2019 2:17am
Forum: Large EV General Discussion
Topic: 2m diameter wheel inflatable car-ish build!
Replies: 6
Views: 1496

Re: 2m diameter wheel inflatable car-ish build!

First successful test. Im very conservative on the throttle for obvious reasons, but it looks promising so far.

by amazingdiyprojects
Dec 03 2018 5:14am
Forum: Motor Technology
Topic: 4XElectric drill utillity vehicle build
Replies: 0
Views: 458

4XElectric drill utillity vehicle build

Love these affordable series wound electric motors :D
by amazingdiyprojects
Oct 04 2018 2:10am
Forum: Large EV General Discussion
Topic: 2m diameter wheel inflatable car-ish build!
Replies: 6
Views: 1496

2m diameter wheel inflatable car-ish build!

Im building an all terrain vehicle based on 4 concrete mixer motors, each one connected to huge inflatable wheels. Feel free to subscribe on youtube and join me in the exciting creative learning process! First episode: https://youtu.be/24uW2Rwwi6k https://endless-sphere.com/forums/download/file.php?...
by amazingdiyprojects
Mar 22 2018 12:44am
Forum: Electric Aircraft
Topic: Manned multirotor
Replies: 15
Views: 1747

Manned multirotor

Looking forward to a new flying season!




Two other clip in the build/flight log youtube series that might be of extra interest: :)





Youtube channel: amazingdiyprojects
by amazingdiyprojects
Sep 28 2014 9:02am
Forum: Electric Aircraft
Topic: Efficient diy propellers + scratch built quadcopter
Replies: 3
Views: 1422

Efficient diy propellers + scratch built quadcopter

Just playing around with tech stuff (as ALWAYS!) I discovered that you can build surprisingly efficient propellers from cylindrical objects, or laminated on top of one. Flight of scratch built 1:4 scale :mrgreen: quad at the end of the movie. JQmFwtc0HOw Youtube channel: http://www.youtube.com/user/...
by amazingdiyprojects
Jul 15 2010 12:20am
Forum: Motor Technology
Topic: 7 RC sensorless controllers running 1 very neat DIY motor.
Replies: 165
Views: 22747

Re: 7 RC sensorless controllers running 1 very neat DIY moto

Ha,ha, I think you will worry about other things than smoke if it start to burn… :wink:

Maximum power test run with 11x90Ah thunder sky cells :

http://www.youtube.com/watch?v=8rY2VDB4Gw4

Enjoy!
by amazingdiyprojects
Jul 14 2010 4:35pm
Forum: Motor Technology
Topic: DIY electric motors
Replies: 44
Views: 11545

Re: DIY electric motors

Thanks guys,

OK, maximum power test run with 11x90Ah thunder sky cells :

http://www.youtube.com/watch?v=8rY2VDB4Gw4

Enjoy! :D
by amazingdiyprojects
Jul 06 2010 6:28am
Forum: Motor Technology
Topic: 7 RC sensorless controllers running 1 very neat DIY motor.
Replies: 165
Views: 22747

Re: 7 RC sensorless controllers running 1 very neat DIY moto

Hi all,

The building instruction is now finalised and available at: http://www.amazingdiyprojects.com

/Axel
by amazingdiyprojects
Jul 06 2010 6:25am
Forum: Motor Technology
Topic: DIY electric motors
Replies: 44
Views: 11545

Re: DIY electric motors

Hi all,

The building instruction is now finalised and available at: http://www.amazingdiyprojects.com

/Axel
by amazingdiyprojects
Mar 24 2010 3:58am
Forum: Motor Technology
Topic: DIY electric motors
Replies: 44
Views: 11545

Re: DIY electric motors

Hi, Project status: I’m still waiting for Luke, liveforphysics, to get back to me with a corrected building instruction text. However, I seem to have lost contact with him, he does not respond to the e-mails I send him. I have made some progress though. I have now rendered the final “ex...
by amazingdiyprojects
Nov 19 2009 2:13am
Forum: Motor Technology
Topic: 7 RC sensorless controllers running 1 very neat DIY motor.
Replies: 165
Views: 22747

Re: 7 RC sensorless controllers running 1 very neat DIY motor.

Yes, time is a major factor.... And speaking of time; i once dismantled a car alternator with the objective to rewind the stator and build a permanent magnet rotor. After a few test windings around a pair of teeth I realized how hard that would be an how time consuming it was, so I started to build ...
by amazingdiyprojects
Nov 18 2009 6:24pm
Forum: Motor Technology
Topic: 7 RC sensorless controllers running 1 very neat DIY motor.
Replies: 165
Views: 22747

Re: 7 RC sensorless controllers running 1 very neat DIY motor.

Hi all! I believe that it is possible to build very efficient motors with amateur means. :D Water cooled version single ESC motor. I have built motors slightly more efficient than the Turningy motor in picture, also more efficient then some Plettenberg motors. I have compared the power requirements ...
by amazingdiyprojects
Nov 13 2009 4:33pm
Forum: Motor Technology
Topic: 7 RC sensorless controllers running 1 very neat DIY motor.
Replies: 165
Views: 22747

Re: 7 RC sensorless controllers running 1 very neat DIY motor.

Hi, “"Router" is the name of the machine you're asking about.” Thank you! “I intend to flater you with plagerism, as you seem to have the same tast in equipment & you are doing exactly the things I am on the path towards. You will get full credit in my future builds. If I may ask w...
by amazingdiyprojects
Nov 11 2009 5:25pm
Forum: Motor Technology
Topic: 7 RC sensorless controllers running 1 very neat DIY motor.
Replies: 165
Views: 22747

Re: 7 RC sensorless controllers running 1 very neat DIY motor.

Hi, and again, thanks for the positiv spirit. “What did you have in mind to run this motor in, perhaps an ultralight plane?” I have though about building a paramotor back pack. I used to have a paragliding license, but I have decided to put it in a Yamaha 125TZR motorcycle to get more ev...
by amazingdiyprojects
Nov 11 2009 5:26am
Forum: Motor Technology
Topic: 7 RC sensorless controllers running 1 very neat DIY motor.
Replies: 165
Views: 22747

Re: 7 RC sensorless controllers running 1 very neat DIY motor.

Hi all, and thank you for your positive veiw on this project. Altough i have build several electric motors Im not an expert in this area in any way. However I will gladly try to answer questions regarding to this motor if there are any. The 7 controllers are the "super simple 90-100A" that costs 30 ...
by amazingdiyprojects
Feb 18 2009 2:27am
Forum: Motor Technology
Topic: DIY electric motors
Replies: 44
Views: 11545

Re: DIY electric motors

Interesting link, Dean, thanks. Well, I did not manage to cope with the heating of my homebrew ESC at power levels above 500 Watt so i decided to switch to a 3phase motor design. This actually results in a motor even easier to build since you do not have to think about the right position for sensors...