Re: Mini K-27 link support assembly

The frame is about 40" from pilot beam to the rear beam. The width over the cylinders is around 11 1/2 inches. I was thinking about taking a picture of it on a tailgate to provide some perspective.

I have been soldering/brazing the parts together with safety-silv 56 although the designer recommends an older more toxic blend that flows better for the boiler. I picked up a Sievert propane torch with various sized tips depending upon the amount of heat required for the part. The hose attaches to a common barbeque propane tank.

All of the drivers are flanged and have an equal amount of lateral motion. As I recall it was designed to operate on a curve with a radius of about 25' but I could be wrong. The trailing truck has more swing than the prototype to allow operation on a 20' radius curve or even sharper (2mm or about 1/16" of lateral for the drivers).

The boiler design calls for copper and a max working pressure of 0.5 MPa or 71 PSI.

Bore and stroke is 1.34" x 2.05".

Scale: 1/10.27 (1' = 1.17")

Dave



Edited 2 time(s). Last edit at 09/21/2020 07:28PM by ROW Explorer.