Motorised projector mount which rises into the ceiling

[Bert Coules]

I've searched around for information on this but so far without success.

Has anyone attempted a motorised ceiling mount which hoists up into the space above the ceiling (the loft, in my case)? I'm thinking in terms of a plain panel on the base of the mount which finishes up snugly against the ceiling concealing the aperture when the projector is not in use.

Failing a DIY project, is such a device manufactured?

Edited to add:

Sorry to (partly) answer my own question, but just in case anyone else is interested I've just found the company Future Automation who make a whole range of mounts, lifts and similar.

I'd still be interested to hear from any DIYers or users of such things.

Many thanks,

Bert