Alright,
What methods do you have up your sleeve?
Some methods that come to mind:
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Joe Fugate’s Doorbolt with fishing line attached to spring wire.
-
Eric Brooman’s over-centering spring contraption
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Iain Rice’s Spring wire in a kinked tube contraption - micro switch sitting next to the turnout to power the frog.
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Michael Tylick’s very inexpensive slide switch contraption. (it’s possible that a variation of this could be very simple, but as it is, it’s pretty complex).
I’m looking for a method that is:
- Cheap
- Provides electrical switching to power a frog
- Durable, easy to fix, etc.
- Essentially “invivisble” on the top of the layout (ruling out ground-throws)
At the moment, I think I’m leaning towards Joe Fugate’s doorbolt & fishing line contraption, with the addition of a microswitch near the spring wire to route power to the frog.
Here’s what I like about this method:
The travel is easily adjustable by where the fishing line is located on the spring wire. It’s all totally tweakable.
Very few moving parts. Two thumbs up on that!
The doorbolt is very sturdy - you’re not going go rip it off when your shirt snags on it, and nobody will bump into it and break it.
The only thing I don’t like is that you have to buy both a microswitch and the doorbolt. They’re both cheap, but it would be nice to eliminate the doorbolt.
A slide switch, a-la Michael Tylick, will need a way to adjust the throw. That is, the slide switch has a fixed throw distance. But you need an adjustable throw. He does this with some added links created from wire. Eric Brooman’s contraption also requires added links - which look like troube spots to me. I wish I could see them in person.
Any other ideas out there that I’m missing?
For now, I’m leaning towards the doorbol