Been making the Ultimaker 2 Aluminum Extrusion 3D printer at http://www.thingiverse.com/thing:811271 and lacked the Heated bed cable clip, which the original builder had purchased I believe. I used the files from the project to convert the cable clip to an STL we can print.Make sure it is aligned flat. There are 2 versions. The larger (in bytes) are direct conversion from IPT to STL and you need to make sure it is level. The smaller version is imported to Tinkercad, reoriented and saved as STL. I have printed both, and they look pretty much the same. I used 100% infill as I do not like my pieces breaking apart.