Make: 2015 3D Printer Shoot Out Test Models

Make Magazine's third annual 3D Printing Shootout was conducted using these files, created by [Andreas Bastian](http://www.andreasbastian.com/) to benchmark performance of desktop 3D printers. You can read all 26 machine reviews in [Make:'s Annual Guide to 3D Printing 2015](http://www.makershed.com/products/make-magazine-volume-42) (Volume 42).
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These test geometries are designed to evaluate specific performance characteristics and motion systems in common low-cost FDM/FFF machines. Traditionally, layer height has been used as a proxy for resolution or quality, but it is a bit of an oversimplification of what is often termed "print quality".
##Prints:
1. Dimensional Accuracy
2. Bridging Performance
3. Overhang Performance
4. Negative Space Tolerance
5. Fine Positive Features Performance
6. XY Resonance
7. Z Resonance