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Some more plugin signals.

Dave John

Entry posted by Dave John in General

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So like many I’m stuck inside unable to work, so keeping optimistic I’ll treat it as a rehearsal for retirement. Time to take stock, have a good dig through all the boxes and see what I have available to make things with.

 

Signal parts come on frets or bags of several bits. Of course all the spare bits are put away, so having sorted through them I realised that I had enough bits for a couple more signals. An ideal project, fiddly and time consuming. Takes the mind off other things.

 

So here we are, a home /distant and a simple home. Both are plugin types to much the same design as the ones I made a couple of years back. Just sitting on the test jig for now. LEDS are each protected by a 1k2 resistor in the signal base, will be wired via an external resistance to dim them down a bit.

 

1574030646_plugsiga.JPG.e267cfcb671ae877cd791670538c878b.JPG

 

And under the board.

 

1226192136_plugsigb.JPG.8899aadea6e8ba97ce8c632d4b8c9c88.JPG

 

 

A simple home.

 

 

981863126_plugsigc.JPG.906411b67cf9417dd0ae9944f69b97da.JPG

 

But why? Well, there is a bit of the layout to the right of that viaduct which is yet to be developed. It does need some sort of corner bit to frame the viaduct, so that might happen too. The long crossing is 30” long and flows quite well so I might as well extend scenically into that region. First thing though I need to signal it so that is where those two will end up.

 

 

1972133080_corner1.JPG.4464047a5c635e91cbeb8da20b1e4960.JPG

 

Hope everyone is staying well.

Edited by Dave John

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Compound2632
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White spectacles were evidently more widespread than I had supposed - I'd thought it was only a Midland thing, not have looked further afield than the neighbours - LNW and GW.

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wenlock
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Beautiful work and looking forward to seeing the scenic developments once the signals are planted.

 

The “rehearsal for retirement” is exactly how I’m trying to view this enforced absence from work:)

 

BW

 

Dave

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Fen End Pit
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That mechanism looks very effective. Am I reading the photographs right and you use a magnet on the servo arm to drive the signal mechanism?

David

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Dave John
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Two magnets FEP. the one on the servo arm is 10x5x1 thick and the one in the brass U is a 3mm cube. The cube is superglued to a bit of springy brass which is then soldered to the push rod. 

 

You need to be fast with the soldering, these magnets are very sensitive to heat. A bit too much and they lose all magnetism. 

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woodbine

An ingenious solution. Can I ask how you set the limits of travel up and down for the drive rod? In the single arm you seem to have a peg soldered to the rod, moving between two stops of some sort, but in the two arm it seems to be a collar doing something? Is one fiddlier than the other?

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Dave John
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Hi Woodbine, the early ones were a peg on the rod , but I tried the collar on the twin. I think the collar may be a bit less fiddly. 

 

Perhaps the ultimate would be a threaded rod with adjustable collars, next layout maybe. 

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