Hello Ulmenblatt,
There are several simple machines you can buy or make yourself.
Which is the best depent on how big a rope you want to make, how much money you have to spend and how much technical knowledge you have.
The easiest for tiny ropes (up to 1 cm?) is the kind of haid braiding machines that have 3 or 4 hooks rotating one way and a head that can rotate the other way round. (If you are luckey you can find it second hand for nearly nothing, otherwise expect to pay up to 10 dollar or Euro or 7 pound.
Photo can be found at:
http://pg.photos.yahoo.com/ph/willeke_igkt/detail?.dir=3a58&.dnm=f939.jpg&.src=phThere is a device for sale made along the same principles, much sturdier, to put on a drill, (hand driven or electric,)
For sale on websites, I have never seen it for less than 100 euro/dollar, 70 pound.
Homemade, easy to make is explained in this website:
http://www.motherearthnews.com/Homesteading_and_Self_Reliance/1976_November_December/The_Incredible_Rope_Making_Machine Two pieces of board, a way to fix one to a table or stand on the ground.
Through both pieces of board go metal rods. The rods end in a hook on the side of the fixed board.
Between the boards the rods make a 90 degree angle, go straight for a little while and make a second angle of 90 degree, continuing the same direction as they started of with.
The rods come out of the second board and should be held there, either by bolting them down, or by bending them over again. This second board will be moved in circles, making the rods to turn round.
This gives you a one on one ropemaker.
I have made one like this myself.
The next posibility is to have some cog wheels fixed in a frame, one big one in the middle, 3 or 4 small ones round it.
The smal ones have a hook each, the big one have a handle to drive it. (Or sometimes there is one more cogwheel involved to get an even better gear ratio.
A photo of this kind of ropemaker is to be found on this website:
http://www.mkdrafting.com/Rope_maker.htm Some more can be found in this book on the web:
http://www.wctatel.net/web/equityrealty/Hawk.htmlAlso you can use bicycle cogwheels and a chain. You need to make a closed case for a machine like that.
I hope I have given you some info you can start with, I think I can find on all of these machines more info, I will add some in a second reply, but if you find one machine interesting, ask and I will try to get you all info asap.
Willeke