REFLECTOR: Bilge/heater fan

[Joe Ewen]

John,

Thanks for the info.  The info you supplied is for positioning servo motors as would be found in radio controlled or robotic applications.  I was looking for info on variable speed controllers for continuous DC motors.

If you are using any positioning servos (RC) you may want to consider another product http://store.qkits.com/moreinfo.cfm/QK102  The QK102 can control 4 servo motors from one board and only costs $20.  The kit includes all board components except for the potentiometers.  The input for the controller can be via potentiometer or as in my case driven by an analog output from the computer system.

Thanks,
Joe


  ----- Original Message ----- 
  From: John Tvedte 
  To: Velocity Aircraft Owners and Builders list 
  Sent: Tuesday, March 18, 2008 11:23 PM
  Subject: Re: REFLECTOR: Bilge/heater fan


  Here is one way....

  Use an OPTO brushed Radio Control ESC (speed controller) - i.e. Jeti 

  http://www.periheliondesign.com/moreproductsfiles/ServoController.pdf

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  From: reflector-bounces at tvbf.org [reflector-bounces at tvbf.org] On Behalf Of Joe Ewen [Jewen at comporium.net]
  Sent: Tuesday, March 18, 2008 9:15 PM
  To: Velocity Aircraft Owners and Builders list
  Subject: Re: REFLECTOR: Bilge/heater fan


  Hi Kurt,

  Do you have any info on the motor controller, drawings, etc.

  Thanks,
  Joe

    ----- Original Message ----- 
    From: NMFlyer1 at aol.com 
    To: reflector at tvbf.org 
    Sent: Tuesday, March 18, 2008 5:41 PM
    Subject: Re: REFLECTOR: Bilge/heater fan


    Larry. Don't have a specific number. Somewhere I read that a Long-EZ was using a blower motor from a VW rabbit. I found one and sure enough, it is extremely light weight and forces a LOT of air. 

    To avoid using up unnecessary electrons creating heat (resistor type speed controls) I used a solid state motor controller. It has on/off and infinite speed control. 

     Kurt 





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