In a recent blog, Tim has shown his developing model of an LMS Caprotti Class 5, and very good it looks too.

Here are some photos of the gear I made for the similar BR Standard version. Also a sketch of how I represented the universal joints in the shafts. THe shafts and joints were made for various diameters of brass tube and rod and the return crank gear boxes were from the DJH cast brass gear I was replacing. For ease of assembly, painting, etc., I made the gear as a set of sub-assemblies held together by small 14 BA) screws. The photos were taken by Barry Norman, so I hope he doesn't mind me putting them on here. The original prints are much sharper but have lost something in the scanning!

The assembled gear looks like this:

The various sub-assemblies are:

1) Cylinders with slide bars and connecting rods,

2) Main drive shafts,

3) Reversing shafts,

These make up the overall assembly,

The universal joints consist of a pair of interlocking "ears" filed onto the end of a length of 1.5 mm tube, mounted on a length of about 0.8 mm wire.

Cheers,

Dave.