rewinding old cd-rom motors for indoor- & park-flyers
First of all my apologies for writing in English, I cannot read or write Russian.
Broken or old cd-rom/dvd/tapestreamer motors can be rewound (brushless) to start a new life in powering indoor- and park-flyers as well as small helicopters (e.g. Ikarus Piccolo). They make for light, durable and powerful motors. I compiled cd-rom conversion discussions/homepages/magnet sources/tricks in this two page thread. The messages there are in English, not Danish:
www.rc-unionen.dk/nytforum/topic.asp?TOPIC_ID=368&…
www.rc-unionen.dk/nytforum/topic.asp?TOPIC_ID=368&…
Some pictures from http://homepages.enterprise.net/jayjay/cdrom_motors.htm
Met vriendelijke groet 😉 Ron van Sommeren
homebuilding brushless e-motors discussiongroup
int. E fly-in & e-motor builders meeting June 27th, Nijmegen, the Netherlands
The two discussions provided in the post above, are probably, together with the three cd-rom homepages (Wolfgang Korosec, John Jackson, Satoru Sasaki) , the two best cd-rom conversion threads/links, highly informative and not that long (see the MOAT, mother of all threads 😉, that one cleared basic questions/problems and did the groundwork for the ‘one hour conversion’ threads, worthwile reading it, when you have the time). They are already part of the compilation I gave in my first post, highlighting them is a good idea.
Slaughtering a cd-rom player 😉
www.rcgroups.com/forums/showthread.php?s=&threadid…
Step-by-step cd-rom motor conversion:
www.rcgroups.com/forums/showthread.php?s=&threadid…
List of dissicted players and their suitability for conversion:
www.rcgroups.com/forums/showthread.php?s=&postid=1…
video: cd-rom motor in depron ‘Bat’
www.rcgroups.com/forums/showthread.php?s=&threadid…
www.aircraft-world.com now stocks magnets and cd-rom motors:
“Sanyo CD-ROM Motor - 9-Pole Stator measures 20.25mm dia, 8-plates for total thickness of 3.1mm”
Search the site for ‘magnet’ respectively ‘stator’.
I created a thread for publishing/comparing the results from the aircraft-world Sanyo cd-rom motor. Who’s first?:
www.rcgroups.com/forums/showthread.php?s=&threadid…
You are likely to be an expert in motors. Maybe you have got a good (tested) scheme of controller and hex-codes, for a motor based on CD-rom, so that it would be possible to make the controller using that scheme? If it is posible, could you please send me such a scheme? That would be enormously helpful and I would be extremely thankful to you. It would be excellent if the scheme is based on microchip.
Ali-baba.
completely join to Ali-Baba at all the points
Not an expert, I only pass on and compile information on the subject of diy motors and controllers. For do-it-yourself controllers see:
rcopen.com/forum/f20/topic8738
The Speedy BL is very popular.
This discussion is ongoing now:
www.rcgroups.com/forums/showthread.php?s=&threadid…
N50 magnets (the strongest possible), 5*5*1.2mm, available from www.supermagnete.ch -> link ‘quader’
A cd-rom conversion tutorial:
www.gobrushless.com/Tutorial_Stock_Single.doc
HEX коды тоже есть для всех трех PIC-ов
А коды сбросить можешь ❓
А можно подробнее? Какие параметры, кто разработал…
Есть и датчики Холла, и BEMF…
Что-ли переключать можно?
That circuit diagram is good food for the Ezone do-it-yourself electronics subforum 😃 See:
www.rcgroups.com/forums/forumdisplay.php?f=199