Saturday 21 January 2023

Scratch Built Car models part 2

This is a  models of a  CN Boom Aux. car to go with my crane. 

This picture looks in from one side of the car. That is a bunk bed, pail with real coal and the stove.

This look in from the other side showing cables and chain on the walls. Tools in the corner, a desk with paper work and a pinup poster above the desk. There are safety signs on both doors. The floor of the whole car is done with a wood plank texture scaled and printed on paper. The hardest part of this is finding the right texture and getting scaled to size. All the details on the deck are scratch built. The tool box hides the crew for the coupler. The cable is just coloured thread

This shows the stove and coal pail. The stove has a lever on the door and a lever on the dampener. I made the stove on my lathe and added legs to it. The sides fit into the stake pockets so they can move a bit and may look crooked but they can also be removed.

You can see the caboose truck under the bunk end 

This shows the underside and all the bracking and piping. There is lead between the 2 center siles for weight. The floor on this side is scribed styrene.

This shows the inside of the roof with a plywood texture added to it.

CN Boom Car

1. Construction

The car was built from my own scale CAD drawings and some parts were cut out on a laser. The entire car was scratch built except for the purchased parts. The walls for the cabin, end sill, and bolster were cut on the laser. This car also has an interior. It follows the pictures of prototype cars but not exactly as I took certain features that I liked from different cars.

2. Detail

I used semi scale couplers and wheel sets. air hoses, brake system, fish belly under frame. The interior has tools, bunk bed, desk, stove, pin up girl on the wall, safety warnings signs, notes and instructions on the wall and chains. I have added blocking, spreader bars, cable, tool box, pieces of rail to the deck. The under frame has braking and all the bracing. There is a kick plate on the bottom of the door front door.

3. Conformity

The building of this car closely follow but not exactly the CN type car that was built from a converted flatcar from CN. I did not have diagrams of the under frame or the interior. The car has a fish belly under frame. The sides of the cabin have 3.5 in vertically spaced boards on the walls and ends. The floor is 5in boards on the inside and out. The brake system is AB with a rising stem brake wheel. The exterior colours and lettering are correct for CN car pre 1959. The roof and the top of the end walls are plywood. It has a wood roof walk. The trucks are Bentendorf on one end and caboose truck under the cabinThere are no boards going up to the roof walkway in the pictures I had.


The top of the floor, and interior of the roof are finished with scaled and printed wood textures on paper. The inside of the roof is plywood texture. The floor is 6" boards. These textures are scaled then cut out and glued to the styrene roof and floor. The interior of the car is then weathered. The exterior and underside of the floor is scribed styrene. The car was air brushed a CN red #11 and weather with chalks. The lettering is a custom decal set I had made.

5.Scratch Building

The car is scratch built from my own CAD drawings with the exception of brake parts, trucks, wheels, coupler and box. The walls, roof, frame, bolsters were built from plain or scribed styrene. There is lead added between the fish belly sills to give weight. The spreader bars, deck boxes, stove, doors are also scratch built. The low sides are built using board by board.

Commercial Parts

-Tichy AB brake parts, grab irons and stake pockets

-Tichy grab irons

-Kadee air hoses, semi scale couplers, coupler pockets and 088 wheel sets

-Accurail Andrews trucks

-Trueline CN #11 red paint

-Custom made decals

-scale chain

-weathering chalks

Building Materials

-.04 scribed and plain styrene sheet

-.06 plain styrene sheet

-.005 clear sheet

-styrene 1x2, 1x4, 1x6, 2x2, 2x4,2x6, 2x8, 4x4, 4x6

-styrene round rod

-lead sheet .02

-cut wood for blocking

1 comment: