[TowerTalk] homebrew rotator

[Jim Miller]

McMaster has worm stuff

On Jun 1, 2016, at 4:09 PM, Patrick Greenlee <patrick_g at windstream.net> wrote:

Why a linear actuator since rotary motion is what you want?  I suppose an electric rack and pinion set from a junk yard donor car could do the deed but not my first choice.

Patrick        NJ5G


> On 6/1/2016 2:59 PM, Bert Almemo wrote:
> Hi Danny,
> 
> Rack and pinion is mostly for linear motion. I believe a worm gear with
> direct drive or a chain drive would be a better choice. Using a worm gear
> you have the breaking function built in. Good luck!
> 
>  Bert, VE3NR
> 
>  
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Danny
> Pease
> Sent: Wednesday, June 01, 2016 3:23 PM
> To: TowerTalk at contesting.com
> Subject: [TowerTalk] homebrew rotator
> 
> I have been intrigued with putting together my own antenna mast rotation
> system and wondered if anyone has any info on using a rack and pinion gear
> type system in conjunction with a linear actuator. If the rack and pinion
> turns out to be too expensive, my second choice would be a chain drive with
> the linear actuator.
> 
> Thoughts?
> 
> Danny NG9R
> 
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