Heyhey, Also having problems with ugly warping abs models becaus of cooler airflow/ heat loss in your printer? This lid should help you a lot to prevent this from happening. There are 3 positions, Closed (duh), open 90° and removed from printer. (Well if you are creative, limitless) I was originally planning to do this with a piece of plexi, but I needed some test cases for large chopped pieces, so I also provided a prinable lid. Same goes for the screws, needed to test thread printing, so you'll also find some printable screws. This is a work in progress, so there could be some changes. You're free to add some change requests in the comment section, I'll be glad to incorporate them . source files are included (pro/e wf3). Please reupload if you improve them! WORK IN PROGRESS.... action shots will follow. UPDATE1; The upper parts didn't fit nicely, fixed (17/11/2014)