Barrel

Boiler fittings

Testing

Grate

Building a Clayton 2" Scale Steam Wagon

designed by Robin Dyer

built by Tony Simons



Drilling the jig for the tube plates
Drilling the jig for the tube plates
Forming the tube plates
Forming the tube plates
Forming the tube plates
Forming the tube plates
Barrel mounted on rotary table
Barrel mounted on rotary table
Marking out for bushes and mountings
Marking out for bushes and mountings
Mounting brackets and bushes added
Mounting brackets and bushes added
Component parts
Component parts
Clinker hole
Clinker hole
Trial fitting tube plate
Trial fitting tube plate
Trial assembly
Trial assembly
Tube Nest silver soldered
Tube Nest silver soldered
Fire box
Fire box
Smoke box tube plate
Smoke box tube plate
Firebox
Firebox
Foundation ring
Foundation ring
Tube plate silver soldered
Tube plate silver soldered
Foundation ring
Foundation ring
Clinker hole door
Clinker hole door
Pickled
Pickled
Temporary stand
Temporary stand
Blow down
Blow down
Water Gauge and Clack
Water Gauge and Clack
Trial fit in the chassis
Trial fit in the chassis
Regulator blanked ready for testing
Regulator blanked ready for testing
Super heater coil installed
Super heater coil installed
Combined clack and water pump bypass
Combined clack and water pump bypass
Pressure gauge plumbed in
Pressure gauge plumbed in

Boiler

Time to make the boiler! I used the rotary table mounted vertically to mark out the relevant bushes as they were positioned at 30° and 45° from the datum. I turned the former for the tube plates and drilled 1/8" holes to locate the tubes, 35 holes laid out using the DRO. The tube plates were then flanged and drilled. Various bushings were silver soldered into the barrel. The clinker hole tube was made and fitted to the inner firebox. Its used for removing clinker and stirring the fire as its fired from the top as Steam Wagon Practice. The tubes were reduced at one end by 1/64" the firebox tube plate being reamered to suit. This prevents the tubes falling through on assembly, The tubes are cut a different lengths to facilitate assembly. The tubes were silver soldered into the firebox plate and the firebox barrel. Next a piece of 3/8" square cooper was formed to make the foundation ring and the whole thing trial assembled again. Then the big heat to silver solder it!