XYZDesignPro posted about this design on the forum but didn't know how to upload STL files so he asked me to do it here. This is a modification (remix) from this part here by selmo: http://www.thingiverse.com/thing:767741 The hinge pivots needed to be modified to suit the narrower front bezel of the UM3 vs the UM2 for which it was originally designed More information on this topic on UM forum: https://ultimaker.com/en/community/39764-um3-door