April 2009


Nicks Layout

Finishing up!

Nick uses plaster-cloth to cover the hillside above the tunnel.

Nick Building the Hill

We painted and ballasted the track, added a retaining wall and added an initial layer of dirt-glue-celluclay ground cover.

Retaining Wall

Nick's Train Approaches Tunnel

Ready for trim: we cut some pieces to cover all four sides.

Cutting masonite on the band saw

Fitting masonite trim boards

Gluing the trim.

Nick Glues

Now for some grass and trees.

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A tree grows

Nick's railroad

Pretty much finished.

Nick's railroad

Our one structure is an outhouse.

When you gotta go ...

Nick's railroad

Nicks Layout

Continuing with construction of the bridge.

Bridge Abutment

Using a “storey pole” marked with the locations of the bents, we shaped each bent pretty closely to the contour of the ground where they would be planted.

Nick Measures for the Bridge

Then we glued the bents to the span — laid out upside down on the bench.

Upside Down Bridge

Once the glue dried a bit we set the bridge up and started gluing on teh cross braces. This really strengthens the bridge.

Building the Bridge

Dan and Nick Glueing

Finally we test fit the bridge in place.

Nick's Bridge

Once the bridge was planted we soldered up the approach tracks and it’s time to test that track again!

Nick testing the trestle

Next we made some guard rails by shaping rails as if they were going to be frog rails and soldering them together.

Nick soldering guard rails

All for now!

We started building out the bridge abutments by cutting away the Styrofoam and making a retaining wall out of scribed siding a stolen from an old Campbell tunnel portal kit.

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Note that we pre-stained the wood with a simple ink-alcohol mix. Here’s the other side of the bridge.

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The temptation to play with a train is just too much to resist!

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We made little bents to go against the retaining boards glued earlier — the white glue is wet and still visible here.

Going Toward Tunnel

We’re following the basic construction techniques of the Northwestern Pacific Railroad as seen in their Corte Madera Creek bridges since we can walk up and inspect them today.

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Using six scale beams glued in two groups of three I made the main span and glued some Micro Engineering code 83 bridge track onto it.

Nick Needs a Bridge

In parallel while glue is drying we’re making more tunnel lining castings and painting the tunnel portal.

Tunnel Walls Drying

Using our jig we made the five trestle bents with profiles roughly matching the ground under them.

Trestle bents