[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Re: TV aerial rotator question - reply



Phil,

Try www.smallparts.com for gears.

73,

Steve WI2W

Phil wrote:
> 
> First, thank you for the huge number of replies. I wondered how the
> controller's pointer moved and I never thought of a second motor. Anyway, my
> worst fears have been confirmed, so it's back to the drawing board.
> 
> I had already considered Bob Bruninga's idea where he has mapped time and
> rotation speed to get the desired aerial heading. Bob states that the
> accuracy is adequate, and I'm sure that it is, but I had a more
> engineered solution in mind. I'll think about this a bit more, the idea is
> simple and it may be the only way that I can stay within my strict budget.
> 
> Another alternative is to add a multi-turn feed-back pot to my own somewhat
> bulky home-built rotator as a few people have done with their TV aerial
> rotators. Actually locating a pair of suitable gears has been a real problem.
> The local appliance repairers don't have anything that is suitable. Maybe the
> the people who have modified there TV aerial rotators have taken a gear from
> the controller. Of course, a pot that turns through 360 degrees would be an
> instant fix.
> 
> --
> Regards,
> Phil
> phil@spiderweb.com.au
> ----
> Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org

----
Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org



AMSAT Top AMSAT Home