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Thank you all for your input on the mesh! The screen on TWP is
really quite impressive and close to prototypical dimension. I did
have a chance to look around there a bit yesterday evening.
I'd have to get a sample and see what it looked like in person to
know if it works for the poultry, however I'll most likely give it a
try. So far, all the other sample materials I have are not quite
For those who haven't seen the presentation, here are the complete
measurements I was given for the car in St. Louis:
A)The screen wire is a 1/8"
diameter solid wire woven
B) The pattern is in a 1 1/2" x 1
1/2"Diamond Pattern vertically
C) The "C" channel frame holding
the wire screen is a 1" tall, with 1/2" legs
D) The length of the screens,
(along the car) is 14'-6"
E) The screens are 11" tall
F) The gap between the screens is
G) That is tongue and groove wood
sticking out between the screens.
The videos that Doug mentions are really
fantastic. Unfortunately PDF does not have live video capability
On 10/26/2018 11:38 PM, Douglas Harding
thing missing from Kristen’s presentation handout were the
brief videos. They are not part of her pdf. I posted links
to the videos she used, to this list back in August.
said - “In
her presentation, Kristen said the mesh on the car at
St Louis measured: 1/8” woven wire, 1.5”x1.5” vertical
patterns are typically described by their axis
dimensions, so doing the math the mesh would be
1.06066” square and rotated 45 degrees. Eighth inch
wire would be 0.001435” diameter, and the mesh would
be 0.01248” x 0.01248”. That would be, I think, about
82 mesh of 0.0014 wire. As it turns out, there is
actually a stainless steel mesh that comes reasonably
close! It is T316 stainless “high transparency”
0.0012” wire 80 mesh, but it’s more than a bit pricey
starting at $19.50/sq. ft. for 1-24 sq. ft. with a
minimum order of $100.00. A full 4’ x 100’ roll goes
for $1,950.00, which drops the price per sq. ft. to
looks like pretty amazing stuff, but given the very
small quantities most of might need, I think suspect
we.d need a fair sized group to make a purchase
worthwhile. A 3” x 3” sample or “swatch” is also
available for $10.00 ($40.00/sq. ft.).
PRRT&HS No. 3966
NMRA No. L2532
Dave Parker via Groups.Io
Friday, October 26, 2018 11:26 PM
Re: [RealSTMFC] Poultry Cars
To get 1.5 x 1.5" openings in HO scale, one could
consider ~40 mesh screen with ~0.017" openings.
The problem with metal screens for Kristin's
application is the wire size -- 1/8" wire in HO scale
would be 0.0014", which is much finer than the wire in
any of the commercial metal screens, brass or
stainless. "Traditional" chicken wire would be even
more problematic given how fine the wire is there.