Page 19 - NMRA Roundhouse January-February 2020

O Scale Stamp Mill Adding Details
Part 2
Lex Parker MMR
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 - photos by Lex Parker MMR
MODELLING ARTICLE
Icontinue the second part of how decks were made up of 2”x8” planks required. The mine track entering from
I built my O scale Stamp Mill by showing all of the components that were each individually made and
fitted into the overall structure. It is rare to find structures on home layouts that have detailed interiors and yet it is the detail that brings everything to life.
Walls Assembled
Only some of the side walls were assem- bled and braced in order to work on the interior.
Decking
An 8” beam was glued to the top of the stone wall to support the deck front edge with appropriate internal 8” supports for the upper deck. The
pre-weathered and stained.
Bins
The interior structure of levels and bins had to be prefabricated working from the back forward as they terraced down. Unfortunately, some of it could not be seen afterwards but were necessary
for the visible structure. As these bins were built, the appropriate machinery was installed, and connections made as
the rock face above would have the small mine cars deliver the ore-bearing rocks into grates above the bins. What wouldn’t drop through the grates was broken up by the “grizzly” rock crush- er at the top. Each bin has a chute
that delivers the crushed rock into the hoppers below which fed the back of the stamp battery. I had to keep in mind
ROUNDHOUSE - January/February 2020
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