Switch Machines (make your own)

I know that I have posted this one before, however, I want to find a good design for a switch machine. has anyone done this?

And if so, could you provide plans.

I have my own designs of an electromagnetic design, but it my not be as good as others. thank you.

Waka324,
Back in the '40s many modelers built their own switch machines. Here is a link to a keyword search at the Index of Magazines:
http://index.mrmag.com/tm.exe?opt=S&cmdtext=build+switch+machine&MAG=ANY&output=3&sort=A
I would suggest that you obtain photocopies of the two most recent of the cited articles. No, I have not built my own switch machines.
Bob
NMRA Life 0543