Caming around

I like the way steam sound decoders sound when the chuff is controlled by a cam. But the process of installing one is more than trivial and I have avoided it. That is until now.

In the picture below #31 is upside down getting its cam attached to the rear driver.
Next I need to get the cam foil connected electrically to the wheel. There are two ways to do this; solder or conductive epoxy. I am leaning towards the latter even though I don't have any on hand. The other option may be to have this wheel's wiper provide the electrical connection.

I also have the control wire wiper to construct and attach to the bottom of the loco and adjust to rest against the side of this driver/cam.

I suspect this engine will be running during the next session using the auto chuff feature that it was using before it went in the shop.