cloning 'machines'

There are a lot of instructions on youtube how to build cloning machines for plants. I would not bother doing that in summer but could you clone plants during winter? For which plants are they suited?

You're probably feeling a bit like winter right now Angelika! My family in NSW are finding this weather pattern a little cold.

I use a propagating heat tray and household LED lights on a timer to clone. Rather than use any 'machine' I prefer this set up with individual species grown in planter bags or pots of appropriate media, each one inside a plastic bag to maintain humidity. This works better for my purposes than using a single cloning bed, as it allows for fine tuning the media and temperature etc to a large variety of plants at once. It also means any individual disease issue is limited to one plastic bag at a time, rather than losing the entire crop.

Using lights and heat the winter/summer difference becomes irrelevant.  

All the cloning machines I've seen are essentially trays designed to hold the cuttings above misters, essentially creating an aeroponic situation that you could introduce rooting hormone to if you wanted. They seem to be more work than they are worth. I agree with ben, and if you wanted to make a whole bunch of clones of something at once you could always use cloning media like rock wool that are way cheaper and less finicky than a bunch of little sprayers.

Thanks for that! I wondered what it was! No really, I prefer the old sand in pot method. I don't know any reason why you would go hydroponic. I thought it was some miracle thing,but miracles are far and few.