Assuming I have the right idea of what a linear actuator actually is
surely a rack and pinion would do the trick

On Feb 10, 6:11 pm, Frank Pittelli <[email protected]> wrote:
> Thomas Lum wrote:
> > I want to build an M270 so I will need something to lift the entire  
> > missile box, hence a 100 lb actuator.
>
> You'll probably be firing the tubes with only a slight elevation, so a
> simple motor, cam and spring setup might do the trick.  In that case,
> you don't need limit switches either, because mechanical stops can be used.
>
>         Frank P.
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