Niles Project ~ Corner Windows ~ Transparency Film

After some more trial and error, I do believe I have finally found a suitable "glass" material that will curve around the corner window frame.

But first, a common suggestion was to use vacu-formed packaging such as found in battery packaging and soda bottles. So I gave that a try...

...and it actually worked well. But a common characteristic of vacu-formed packaging is that it has a texture to it as can be seen in the photo above (above the smudge of glue in the lower 1/3 of the window). The clarity of the plastic isn't the best either. So on to the next suggestions.

Ken Blackburn, a member of the HO Traction Modeling Yahoo Group, suggested Acetate. And Ken Somers, a member of the Interurban Yahoo Group suggested Mylar. I was really struck with how simple and elegant these ideas were. It fits perfectly with the KISS principle. So I set out to find some transparency film. Not so simple. Because of the proliferation of computers, overhead projectors are all but obsolete. Drafting supply shops seem to have disappeared as well. On line I can find transparency film for well over $20 a box!

I ended up stopping by Kinko/FedEx and asked if they can print transparencies. She said a dollar something for color and 75 cents for B&W. "What would you like to print"? I told her I was actually only interested in the transparency sheet itself. She sold a sheet to me for 75 cents. I don't know what the material is other than it came from a box of 3M Transparency Film. But it is slightly more flexible than styrene. So I cut a piece to size and...

Hey! Not bad! Not bad at all. It curved real nicely. And the clarity is quite... well... clear! This time I used CAA (Super Glue) to glue on the window. I've been trying to stay away from CAA since it shatters in freezing temperatures. But I needed the fast drying qualities while I pressed the window to the frame. I'm very happy with the result. I'm going to use this transparency film material for the rest of the windows.

I wish to thank all of you who gave your 2 cents, your help is greatly appreciated. Yes sir! Greatly appreciated!

Dandy

Niles Project ~ Corner Windows ~ Micro Kristal Klear

Well you folks really came through for me, thank you! A lot of ideas were presented, a few of which I'm going to give a try.

To recap, I'm trying to find a suitable solution for creating the "glass" for the rounded corner windows:

Australian traction modeler Bill Bolton comes through once again with the suggestion of trying Micro Kristal Klear. I've been using this stuff for gluing on clear styrene windows because it won't craze the plastic and it dries clear. But it also claims it can be used to make small windows itself. So since my bottle of Micro Kristal Klear is right here, why not give it a try?

Micro Kristal Klear is very similar to white glue, with some characteristics of rubber cement. I took a blob onto a toothpick and stretched it across the window opening. That was easier to do than I anticipated. Then I took a small screwdriver and scraped up the over slop. As you can see in the photo above, the "glass" is within the window frame. Not behind it as clear styrene would. Also, the "glass" the took on the almost 90 degree curve! But unfortunately that wouldn't last. Apparently it shrunk a bit as it dried and kind of straightened out:

And here is the result. Its not exactly "crystal clear" (which is probably why its named "Kristal Klear"), it is a bit cloudy, but not that much more than clear styrene. Also, since it is a liquid, the thickness is not consistent. So there is a bit of a "ripple glass" effect to the window. So Micro Kristal Klear is still a strong contender for use in the final model. But before I make a final decision, I'm going to try some of your other suggestions. Yes sir! Lets try some of those other suggestions!

Thanks Bill!

Dandy

Niles Project ~ How The Hecka?

I'm unable to get the clear styrene to conform to the curve of the corner windows in a satisfactory manner.

These Niles cars have these stylish curved corner windows. Curving almost a full 90 degrees. Quite a handsome feature if you ask me. If I can only get the glass (clear styrene) to curve that way too!

So I scoured the internets looking at all the nifty theories on bending styrene. I tried a bunch of them, finally building the above jig. How it works is, the styrene fits between the two pieces and then the whole shebang is put into the oven (I forget the temp). It kinda worked:

... but while that method might work fine for regular styrene, it caused the clear styrene to frost over. That might be fine for some folks, but you know me, everything has gotta to be overly realistic. I want to try for crystal clear.

So I'm asking for YOUR help, my dear readers. Below this post you'll find the "comment" button. If you have any ideas on how to fabricate and install curved window material, I sure would like to know. Please, click on that comment button and make you voice hoid! Yes sir! Make your voice heard!

Dandy