Lexan port hole rain cover. Lexan was cut on the cnc router, then bending this in the oven was a pain and it still doesn't fit perfectly. But then it probably will never get used, so it's fine. I made a jig of MDF and 040 aluminum to the trailer shape. I set the lexan on the jig and baked the whole thing for a long time (2+ hours), slowly increasing the temp every 10-20 minutes. At about 280 degrees F the lexan finally turned to a rubber like material and started to bend. I would pull it out and overbend it, then set it back on the form, but it would always tend to lift off the form and return to its original shape. I eventually hand bent it a little past the form and pulled it out and let it cool holding it with oven mitts. After only a minute it couldn't be adjusted and I decided enough was enough.