FlashForge Finder Side Wall Clip

Here is my clumsy attempt. I wanted to have some easy and cheap side walls for the FlashForge Finder I bought for testing. So while learning FreeCad, I tried to put together some small easy and effective way to hold polycarbonate sheet. I looked around for some information regarding flammability of acrylic vs polycarbonate and seems while acrylic is nice clear etc... polycarbonate seems to be recommended, so I used 3mm. However I had to cut to size myself and it was my first attempt. My side walls are 281mm wide by 247mm tall. However this is my clumsy measuring and cutting (myfirst attempt), so perhaps if you are going to use the clips, perhaps use some strips of cardboard to get the size right before you go cutting polycarbonate sheets.