Gato's system is even better (although a little heavier) in terms of its ability to be built at home,
Actually the most simple setup would be how several A-cat (home)builders do it.
They make the receiver for the cone but the cone itself is nothing more then a threaded end. Basically they use a long piece of threaded rod with a tube (=pin) slid over it. They use 4 knots Two under the mainbeam; one to adjust the tension of the strap, the second to secure it. The two nuts above the mainbeam to secure the pin there. The mast foot itself it made from Stainless steel and there are several ways to make the cone receiver but drilling out the head of a large bolt like Gato has done seems to be the easiest. Both holes on top and bottom of mainbeam are now nothing more then 10 - 15 mm dependng on the threaded rod that is used.
Wouter
