[chbot] Cheap Rack and pinion servos?

[Brahm Boelee]

I really want an extension of 40cm. 

On 21/04/2015, at 7:33 pm, Mark Beckett <m.beckett at amuri.net> wrote:
> 
> Brahm might have been after one of these.
> https://www.google.co.nz/search?q=central+locking+actuator&tbm=isch&tbo=u&source=univ&sa=X&ei=Jf01VcbDH8jFmQXj7IHAAQ&ved=0CBwQsAQ&biw=1680&bih=913
> 
> 
> Andrew Errington wrote:
>> Does such a thing even exist?  You might have to make your own.  Maybe using a multi-turn servo such as a sail winder with a pinion on the driveshaft.
>> 
>> Presumably you are looking for linear motion.  Have you considered a threaded rod?
>> 
>> Best wishes,
>> 
>> Andrew
>> 
>> On 21 April 2015 at 16:17, Brahm Boelee <brahmboelee84 at hotmail.co.uk <mailto:brahmboelee84 at hotmail.co.uk>> wrote:
>> 
>>    Hi.
>>    Does anyone know where to get cheap rack and pinion servos?
>>    Preferably with a longer rack.
>>    Thanks for your help
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