Its taken 5 attempts to make up the flycranks for this loco. The etched ones are, to my eyes, too flimsy looking being laminated fom two layers and I wasn't convinced that the throw matches my wheels. So I made up some more from .065" brass. The second pair I wasn't happy with, too narrow, the third pair I got the crank throw wrong, the fourth pair I snapped a tap in. Today I finally finished the fifth pair, not perfect but I can't be bothered making another set! Here's a pic of the second(?) pair marked out and drilled;

Note that I sweated two cranks together (nice job for the RSU) but kept them on the strip for ease of working.

The crankpin hole is drilled 1.4mm ready to be tapped 10BA for a Romford crankpin and the axle hole is drilled 2.9mm and reamed 1/8", all done on a bench drill press.

To ream the hole accurately I clamped the job to the table and, as my drill hasn't got a low enough speed for reaming, turned the chuck by opening the belt cover and moving the belt manually (power off!) with one hand whilst using my other hand to excert pressure on the spindle lever. A pic might explain better;

The drill is set up on the dining table, it lives hidden away under the stairs.

To get the crank throw accurate on the fifth pair I drilled and reamed the axle hole first then threaded a wheel and axle on the crank and spotted through the crankpin hole. After drilling the crankpin I double checked the hole by threading the axle onto the crank again and passing a drill through both the wheel and crank;

The cranks were mostly cut and filed to shape whilst still attached to the strip. Here they are detached from the strip but not seperated from each other, still some cleaning up to be done;

And here's the chassis with one set of rods in place, the second crank with one of the etched originals in front;

Next job is to paint the chassis before assembly.