I began working on the full scale tower stand over the holidays. The one issue I did not address with the scale model was the windows, namely the design and how they would open. At first I thought sliding side by side would be a good option but I forever lose half the window. I didn’t want a hinged design that either swung in or out because of the motion and the issues with keeping them open at a time when a deer approaches so I am messing around with a vertical slider with a counter weight balance system which makes the window very easy to open and keeps it in the open position without having to secure the window.
The Plexiglas and wood frame is 15 inches by 42 inches and weighs about 5 pounds The window rides in tracks on each end and slides up but the weight of the window was a bit much for super easy opening so I used the type of counter weight system so many milk house doors had on the farm.
I have not yet removed the protective film on both sides of the window nor have I installed the felt sliders to quiet the window but I got a chance to play around with the design to see if this is the route I want to go. Here is a view from the inside. The handle to open the window is a coat hook I modified and turned upside down.
The sill and sash on the outside are made from treated lumber and painted. I installed the sill at quite an angle to ensure water run-off as I don’t want water to get into the bottom track of the window and then freeze.
In the widow itself I installed a weather shield sort of mini awing made of aluminum. It’s the angle piece used for suspended ceilings.
With the window open, you can see how it protects the bottom track from rain. On each vertical end, I installed a “P” shaped piece of adhesive backed weather stripping also to keep water out.
To further detour rain, I added a wood strip above the entire window and then used a piece of roofing material called a gutter apron only I used it upside down to act as an additional awing to keep rain out.
Here is a picture of the temporary rope I used to tie the window to the counter weight. After opening the window a few times and hearing the hard stop I installed a block of wood and a piece of sticky backed foam above the window to quiet the stop.
Here is a video of the window being opened. It takes very little effort to lift. The “Clunking” sound you hear at the top of the window opening is not the hard stop but rather the crude counter weight at the other end of the rope as it swings and hits the wall. For a better and quieter counter weight I envision a PCV tube with the right amount of weight (perhaps sand) with end caps on the PVC tube. That sand weighted PVC would slide inside a slightly larger piece of PVC tucked into the corner near the floor. This keeps the weight from being bumped or swinging and making noise.http://www.youtube.com/watch?v=QTON8raS ... e=youtu.be
It looks promising so far. I still need to work on making the windows quieter.