Need help im afraid :-/

Use Goggle search electric linear actuator

Hope this helps

-- Jonathan

Barnes's theorem; for every foolproof device there is a fool greater than the proof.

To reply remove AT

Paul wrote ..........

Paul,

I am a bit concerned about anything as heavy as 20kg being moved by a sudden and uncontrolled cough or sneeze. Have you counted your fingers lately - it might be a good idea to start a graph showing their number on a daily basis. :)

Mike.

you could do this with a machine screw.. driven by a regular motor and gearbox. add two linear bearings/bushes & limit switches and you're in business. if you dont precise control.. and only stopping at two positions, you probably dont need the servo.

with a fine machine (acme) screw.. maybe 3 or 4 mm pitch, you could get your motor requirements down to around 1/8hp, depending on your gearbox reduction.

-tony

Cheers all, certainly a bit to think about, ps, if i went with a sound activated switch i will make sure that its a slow action motor so i dont lose a finger if i sneeze Mike :-)

Paul

In article , Donegal Paul writes

Good god, we're getting some right riff-raff in here these days...

'Ello DP... ;^)

That scooter weighs more than 20 Kg surely?

Can't help with the electrickery, but can help with any machining, email me if you need it.

"Nigel Eaton" replied to Donegal Paul

Heh! It aint for the scooter :-)

Paul.

Our garage has a hydraulic jack that has the right movements - pump up quickly, knock off switch at the end of the travel then leak back slowly.Any interest? G.H.Ireland.