I managed to get the shoulder bridges off the chest plate with minimal struggle. The chest plate got a little scratched up when I went in there, but hoping to take some Novus to it to clean it up.
I will use the aforementioned method of making my bridges super strong!
Because my shoulder bridges had somewhat undesirable curves to begin with, mainly because the tabs on the chest plate don’t very well line up with the ones on the back plate, I decided instead to form the support the “right” way, then glue the bridges to it instead of the other way around.
I still had the ⅛” thick ABS sheet from the TK kit that I used for cover strips. I figured I could use it as a strong base for each shoulder bridge. The trick was to get the ABS cut and then shaped into curves so the bridges could be glued to them without trying to first glue and then bend, which won’t work.
Overall, this would mean that the bridge assembly is on the thicker side, but I don’t see anything in the CRL about it needing to be any particular thickness.
I had an old 6” curve mold from a previous project, which I again used to shape the ABS. 6” happens to be just about right, give or take.
I first tried the water bath method, allowing some water in a glass bread baking dish to get to full boil in the microwave, then immersing the strip in it for several minutes, and quickly pushing it into the mold. This really didn’t work. The strip sprang back quite a bit to maybe a 12” diameter curvature.
The glass transition point (Tg) of ABS is 221 degrees Fahrenheit, so that’s just above what boiling water can provide. So, I lined the cookie sheet of my toaster oven with foil, set it to about 225 degrees F, and watched and timed it all very closely.
What was good about this is that I started with the partially bent strip from the water bath, which allowed me to figure out the time that it flattened back out, which was around four minutes. As toaster oven thermostats are not known to be accurate, your mileage may vary. I advise you to watch this very carefully.
When it flattened out, I waited another 30 seconds or so, then quickly and carefully pulled the strip out and stuck it into the mold. Results were good!
I needed to add two feet to the bottom, though
I then tested the curvature on my armor to ensure that it was good.
Next came the glue. I did find the Plastruct Plastic Weld at a local art store. Upon inspection, there were still several wide gaps, so I glued those down with CA glue first.
I then applied the Plastic Weld, and sanded down the edges.
The seam was still apparent, so I painted over them with some gloss white Testors.