circa 1946 freight car images
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There was a recently concluded eBay listing that had a number of images that might be of interest to the group including one of those not often photographed poultry cars:
Eight (8) b&w negatives of Vintage Freight Cars (PFE & Western Union inc...
Find many great new & used options and get the best deals for Eight (8) b&w negatives of Vintage Freight Cars (P...
On Saturday, April 4, 2020, 2:06:52 p.m. EDT, Tim O'Connor <timboconnor@...> wrote:
Thanks Drew for the clarification. I'd love to see this done. It
seems to be an
almost forgotten art at least for HO models.
On 4/4/2020 11:35 AM, Drew wrote:
I worked in a prototype model during my
high school years. We used lost wax a few times. First a
master is made and a mold made off that master, the mold was
usually RTV rubber. Wax was poured in to that mold to make a
second master which did shrink a bit. That wax master was then
placed in foundry sand and hot metal poured in to the sand
mold. The wax melted/vaporized and metal took its place, hence
the name lost wax. It's been 20 years since I last did that
but I do recall there was a bit of shrinkage in each step.
Drew Marshall in Philly, PA
On Apr 4, 2020, at 09:15, Tim
As I recall, all Cal-Scale detail components were
OVERSIZE because they were used
for lost wax casting! In that process the plastic
parts are for the molds and are
destroyed in the casting process, and the
shrinkage produces parts that are closer
Or am I wrong? :-)
On 4/4/2020 9:00 AM, Lester Breuer wrote:
A comparison of several
manufacturers’ model brake component measurements to
Westinghouse prototype brake component measurements
prepared by George Toman was sent to me for my use. I
asked George to share his measurements comparison on
my blog. If you are interested in the comparison
measurements, they are now available on my blog I have
to share photos and writeup of projects on my
Minneapolis & Northland Railroad Company. If would
like to take a look please do at the following link:
-- Tim O'ConnorSterling, Massachusetts
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