|BUILDING A PLYWOOD GP35 - Page 4
APRIL 8, 2014
On Monday it was raining so it was a good time to make the "Calvert Central" diamond logos. On the computer I
started an Excel table and found an appropriate font called "California," used the largest size (72), and printed it in
white letters and black background. I measured and cut the diamond shape and drew the borders with a black
pen. I made copies at 87% reduction for the 6-inch front logos and 154% enlargement for the side logos. Then I
had them printed at Staples on adhesive paper and cut the diamonds carefully with scissors. Here's the results:
Tracing and cutting pieces of 3/4 plywood at 6 1/8 inch diameter.
I had acquired a piece of 1/16 inch aluminum (from dumpster diving) that
happened to be just long enough to wrap around the disk. I cut a 1 3/4 inch
strip and bent it. We will finish the exhaust fans in the next few days.
PAINTING CONTINUED - On Sunday it was a nice day but a little too windy and the ground too wet to do
much yard work. Time to work on the railroad! So I measured, masked, and painted the intake grill areas for the
radiators, dynamic brakes, and traction motor blowers. Then on Tuesday I finished and applied the diamond
logos. So far I have not been able to find a true yellow highlighter; all of them I found have a greenish tint.
I scoured the house to find an object to use to trace a 4.6-inch diameter for
the smaller fan. Yes, it's a cat feeding bowl. Hey, what can I say - it works!
The centers of the fans were cut from 1/2 inch plywood for the larger fans and
2 layers of 4 mm plywood for the center fan, plus lots of sanding around the
Charlotte found a couple varieties of plastic mesh that could be used for fans
and intake grills. The round comes in white only but the rectangular is available
For the exhaust stack I started with a solid block of fir, but making the opening
would be a problem. So I made it with 1/2 inch plywood with 10 degree edges.
The cap is made from 4 mm luan plywood. I used the band saw, so there is
a spot on the other side where the blade went through to cout out the center
Here is a view with all 4 fans and the stack. Notice the plastic mesh in the fans,
spray painted black. The only major roof detail missing is the horn assembly.