Hi there,   In order to gain a better understanding of how our users use their Ultimaker 3D printers, we would like to ask you a few questions. In particular about what materials and reels you use. It would be greatly appreciated if you had a few minutes to spare and could answer these questions. We will use this information to improve future products.   For some extra motivation and to make it worth your while, one (randomly selected) respondent will get a free reel of