How to build realistic rock formations with 2″ high density foam house insulation

Barry’s finished his Lionel figure of 8 layout (pictures below). But not only has he sent these pictures in, he’s also kindly written this ‘how to’.

Many thanks, Barry!

Here’s what he sent in:

“1) Purchase a foam cutting “hot knife”. I think I bought mine from Home Depot for less than $20.00.

2) I use mine on the highest setting which is #6 on temp. dial.

3) Just let the hot blade do the cutting with twisting and reciprocating motions and occasionally changing the angle of the blade to achieve an unevenly cut edge that I think looks like real rock formations.

4) You can use 3/4, 1, 1-1/2, and 2″ foam. This shown with 2″ foam and that’s probably the thickest my knife can cut through. (enclosed is a picture of the hot knife That I use)

5) Caulk all the joints with painter’s caulk and let dry. Then paint the entire surface of the layout with a tan acrylic paint. (from Walmart or a crafts store—they are much cheaper than from a model train hobby shop)

6) Then using a darker shade of brown drybrush highlights on the rock formations to create depth and perspective.

7) Then paint the lakebed with an olive green color paint leaving some tan color around the outside edges to simulate sand in the shallow water. Then I use a flat black spray paint with just a few short bursts to give the illusion of deeper areas.

8) On this layout I only used a 2-part epoxy fake water from the crafts Walmart as I wanted the lakes/ponds to look like stagnant water instead of my normal ripples on the water created by the wind.

9) Last before the water is dry(approx. 24 hrs. add schrubs, fallen dead trees in the water and normal trees to the entire layout with white glue as desired.

I’ve enclosed (2) early stage pics showing the pink foam and the white caulk, (1) pic of the hot knife. And the rest of the pics are final results.

I also did not use foam grass on this layout to keep it more user friendly for the young operator.

Hope this help your readers to understand better and want to try it.

Regards,
Barry”

Pretty impressive isn’t it? Barry has done a superb job – again.

Have a look here if, like me, you aren’t as talented as Barry…it’s a great resource. As you know, I’m a fan of it.

Or just head off to ebay through the cheat sheet and dive in!

Best

Al

Take a look at Brian’s railroad

Here’s a video of Brian’s railroad. A work in progress. Love the fun fair!

Click here for the latest ‘ebay cheat sheet’.

Best

Al

PS Michael – the woodwork site / plans are here.

(There are hundreds and hundreds of posts to enjoy and learn from – but the only way you’ll get to see them all is by being on the newsletter).

Lionel Model Railroad taking shape…

Barry’s made progress with his new Lionel layout:

“Alastair,

Here are some interim picture updates just to show you the progress but I’ve still got a couple of days left. Hope you like the looks of it.  I’m planning my next projects already and it will be HO scale and entirely layers of 2″ foam to achieve an extremely light weight layout with several levels of track and tunnels and bridges. 

I’m also going to start my own personal project that will be an HO scale and have a double track 48″ helix at each end and the lower level will stage an additional 6-8 complete trains.

Regards,

Barry”

Seeing Barry’ layout spring to life makes me realize how much I have to learn!

Anyhow, if you’re like me, there’s always here for more step by steps.

Best

Al

PS And don’t forget the ‘ebay cheat sheet‘!