On 9/7/11 6:48 AM, Jim W7RY wrote:
> Simply use a windshield wiper motor and gear box. that is what AlphaSpid
> uses.
>
> 73
> Jim W7RY
>
prop pitch, windshield wipers, electric window, jail door latches, and
antenna rotors all share some interesting properties:
very low duty cycle operation
low rotational speed
durability requirements
not a lot of concern about mechanical efficiency
The combination of high speed DC motor (low torque, but high HP) and
huge gear ratios are typical in all of these.
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|