I made this from the original source files for the P6*6 120 Film Pinhole Camera. It is scaled at 25% of actual size and I'll be handing them out as give-away swag at the 2014 Seattle Mini Maker Faire, March 23 & 23, 2014. If you look closely at the prints, you can discern the tiny knurling at the sides and on the shutter extension! Some concessions have been made to print this so small: I added the Knurled Surface Library V2 by aubenc as a source. Pardon the oversight. ATTENTION This work is licensed under the Creative Commons - Attribution - Non-Commercial license. This license applies only to the files and documents available for download from the Thing Files section of this Thing. All other related content (photographs, videos, and verbiage such as contained in "Description" or "Instructions" ) are excluded from this license. with all rights reserved, unless specifically available for download This notice constitutes a clarification, not a change, to licensing for this design. I printed this at 0.25mm with 2 layers top and bottom, 2 perimeters, and 20% infill. During slicing, I got a seemingly-trivial non-manifold error, and Slic3r 0.9.10b seemed to fix it without difficulty. It prints quickly, and some clever cooling tricks might improve your results - I had some warping issues until I delayed the fan from turning on at 6 layers. If you print multiple mini P6*6's at the same time, the cooling issues disappear as there is time for the separate objects to solidify a bit before the next layer is extruded.