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Oct 23, 2006, 06:40 PM
homo ludens modellisticus
Ron van Sommeren's Avatar
Thread OP
Discussion

direct drive main motors


SCHWEIZER 300C RC SCALE MODEL HELICOPTER WITH DIRECT DRIVE / Treffpunkt Modellbau Paaren 2016 (5 min 53 sec)



Several homebuilt do-it-yourself main rotor direct drive motors.
  1. Working on it
    Making my own brushless for direct drive helicopter
  2. Direct drive motor 450 pro cp/fp
    www.helifreak.com/showthread.php?t=366956
  3. Made from a floppy disk drive motor
    www.rcgroups.com/forums/showthread.php?s=&threadid=197862
  4. Do-it-yourself motor homepages, manuals/tutorials, checks and tests in the first message of this motor builders tips and tricks thread. The checks and tests may save you from frying your controller or motor. Thread is active, bookmark it for future reference and subscribe to it:
    www.rcgroups.com/forums/showthread.php?t=240993
  5. Large diameter washing machine motors
    www.topbandmotor.com/product_d.asp?big_id=17
  6. main and tail rotor DD
    www.rcgroups.com/forums/showthread.php?t=492675&page=23&pp=15
  7. A Dutch development
    www.rcgroups.com/forums/showthread.php?p=5530768#post5530768
    More links and ideas by user 'Sietse' in this Dutch thread:
    direct-drive-cp-heli-t-rex
    zelfbouw-brushless-floppymotoren-voor-dd-heli-shocky
    media.putfile.com/DDFP-picolo-12N16P
  8. A second direct drive motor, from two 5.25" floppy disk drives. Polish and German text:
    alexrc.com/voytek_pl.html
  9. Christian Lucas' (the 'L' in 'LRK') direct drive helicopter, powered by a hydrogen fuel cell:
    www.rcgroups.com/forums/showthread.php?postid=1030688#post1030688
  10. More do-it-yourself direct drive helicoptermotors
    www.powercroco.de (in German & Englisch).
  11. Dieter Melber
    www.powercroco.de/24N32P7210.html
    www.torquemax.de/AndereMelber.htm
  12. 60pole stator development
    www.rcgroups.com/forums/showthread.php?t=612543
    hem.passagen.se/swhbpocl/
  13. Direct drive T-Rex
    www.rcgroups.com/forums/showthread.php?t=492675
    videos:
    uk.video.yahoo.com/video/play?vid=232581
    www.rcgroups.com/forums/showatt.php?attachmentid=1027368
Vriendelijke groeten Ron
diy motor building tips & tricks
diy brushless motor discussion group
Drive Calculator download & discussion group
int. E fly-in & diy outrunner meet, Aug.26 2007, Nijmegen, the Netherlands
Last edited by Ron van Sommeren; Jul 24, 2017 at 01:32 PM.
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Oct 23, 2006, 08:18 PM
That tree again!!!!
thanhTran's Avatar
I'd love to see one of these direct drive on a Trex size heli. Does it have enough power to drive a Trex? says max 300W?

Thanh
Oct 23, 2006, 08:28 PM
Coaxially Fixated
copperclad's Avatar
hi Ron
thanks for posting this thread , we are privileged to see some truely great work , these motors are really works of art , thanks again , dana
Apr 16, 2007, 11:43 AM
homo ludens modellisticus
Ron van Sommeren's Avatar
Thread OP
Added, 60 pole stator:
https://www.rcgroups.com/forums/showthread.php?t=612543

Direct drive T-Rex
https://www.rcgroups.com/forums/showthread.php?t=492675
videos:
http://uk.video.yahoo.com/video/play?vid=232581
https://www.rcgroups.com/forums/show...mentid=1027368
Last edited by Ron van Sommeren; Apr 16, 2007 at 11:51 AM.
Apr 01, 2009, 10:43 AM
homo ludens modellisticus
Ron van Sommeren's Avatar
Thread OP
Added:
http://hem.passagen.se/swhbpocl/

Vriendelijke groeten Ron
www.yahoogroups.com/group/lrk-torquemax
www.yahoogroups.com/group/d-calc
Apr 24, 2009, 09:28 AM
homo ludens modellisticus
Ron van Sommeren's Avatar
Thread OP
Added:
Large diameter washing machine motors
http://www.topbandmotor.com/product_d.asp?big_id=17
Aug 22, 2011, 09:01 PM
Registered User
Quote:
Originally Posted by Ron van Sommeren
Added:
Large diameter washing machine motors
http://www.topbandmotor.com/product_d.asp?big_id=17
Hi Ron,
Thank you for your sharing your thread.
can't believe you have done this direct-drive in 2006, when it was not my hobby at all.
i fell in love with these flying machine in 2008

i just wanna make a slient heli which i can play in the midnight at home without disturbing my family and neigbours . That's why i made this direct-drive 4 channel single blade heli.

I use 8.5 fixed pitch blade on this plane so they make hardly no sound at all. One can only hear the soft sound from the direct-drive tail brushed motor CN12

my direct-drive flying video
http://player.youku.com/player.php/s...NDAxMTU2/v.swf
Aug 23, 2011, 05:18 AM
homo ludens modellisticus
Ron van Sommeren's Avatar
Thread OP
None of those in the links I give are mine, I've never built a motor. More direct drive motors
translate_www.powercroco.de
-> helidirect

A video from that site, Dutch, but not me:
http://www.powercroco.de/24N26P/DDCPheli.wmv

Vriendelijke groeten Ron
diy motor tipsDrive Calculator
diy motor groupCumulus MFC
Nov 02, 2011, 10:52 PM
Registered User
Quote:
Originally Posted by Ron van Sommeren
None of those in the links I give are mine, I've never built a motor. More direct drive motors
translate_www.powercroco.de
-> helidirect

A video from that site, Dutch, but not me:
http://www.powercroco.de/24N26P/DDCPheli.wmv

Vriendelijke groeten Ron
diy motor tipsDrive Calculator
diy motor groupCumulus MFC

Hi Ron,
update this thread with my latest outdoor flight video
http://v.youku.com/v_show/id_XMzE2OTQ3MTA4.html
Nov 06, 2011, 04:50 PM
homo ludens modellisticus
Ron van Sommeren's Avatar
Thread OP
Nice seeing you Vincent. Great sound, the sound of silence.
I compile tech info in my opening post, if you have a site with pictures, numbers, material used, info, by my guest, I will post it there.

Vriendelijke groeten, Ron
Nov 09, 2011, 12:43 AM
Registered User
Quote:
Originally Posted by Ron van Sommeren
Nice seeing you Vincent. Great sound, the sound of silence.
I compile tech info in my opening post, if you have a site with pictures, numbers, material used, info, by my guest, I will post it there.

Vriendelijke groeten, Ron
Hi,Ron,
will update you soon with the motor's parameters
Jul 24, 2017, 01:02 PM
homo ludens modellisticus
Ron van Sommeren's Avatar
Thread OP
Added
www.helifreak.com/showthread.php?t=366956

And video below

Vriendelijke groeten Ron

SCHWEIZER 300C RC SCALE MODEL HELICOPTER WITH DIRECT DRIVE / Treffpunkt Modellbau Paaren 2016 (5 min 53 sec)

11.930
Last edited by Ron van Sommeren; Jul 24, 2017 at 01:11 PM.
Sep 06, 2017, 09:11 AM
Registered User
I am planning to do direct drive on my Blade 200 SRX that has been stretched to 250 blades and boom. Since the 200 SRX is already tail direct drive, making main rotor direct drive will make the heli a multi-rotor copter, just like a mass produced quadcopter.
Sep 08, 2017, 10:02 AM
Registered User
Steve_'s Avatar
Quote:
Originally Posted by Ron van Sommeren
Added
www.helifreak.com/showthread.php?t=366956

And video below

Vriendelijke groeten Ron

https://youtu.be/5DCnNnI4XpU
11.930
The ambient noise masks the sonic bliss.

What a beautiful machine. The scale strobe is a nice touch.

Gear drives ruin it, but belt drives don't seem to drown out the blade noise much, as long as they are running perfectly.
Last edited by Steve_; Sep 08, 2017 at 10:11 AM.


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