Page 21 - NMRA Roundhouse January-February 2020

added around the layout. These includ- ed everything from river sounds to a honky-tonk piano to machine sounds to coaling tower sounds... and so on. So I’ll install a small speaker into the back of the top bin where it would never be seen and using a short piece of card tubing (toilet paper core tube) for resonance. This will be connected to a switch on the panel like all the others.
Tables (see title photo on page 19)
As the rock was pulverized, the material would spill out onto these tables, washed
down to delivery chutes on the end and then onto the Wilfey tables below.
Belts (see photo below)
The surface of the Wilfey tables is sloped and powered with a small motor that vibrates the table separating the heavy metals leaving them at the top. The remaining talus is washed down and out to be dumped outside later.
Roof
The roof had to be removable in order to view the interior. The roof framing
was fitted to the structure and covered with a sheet of plywood. Dormers
were added next to allow light to enter. Only the main front and upper roof are removable. Aluminum corrugated sheets were cut to size and airbrushed for a rusty finish and applied using contact cement.
After reading this article, I hope you will come away with some tips and tech- niques that you can apply to any size or scale of model. Visit my website at www. drgwrr.com for more ideas and instruc- tion videos on building other models.
Just be careful that your wife doesn’t end up with the mine and you get the shaft!
Lex A. Parker MMR
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