Useful 3d Printer Test Patterns

[swbluto]

Got any useful 3d print tests?

This tiny cup is a way to quickly test different coast values to find the one that gives a nearly perfect seam / z-scar appearance.

http://www.thingiverse.com/thing:934062

This 3mm x 20mm x 20mm test square is useful for quickly previewing the bottom layer and the top layer for a given combination of settings.

http://www.thingiverse.com/thing:1053367

Here's a quick and easy to print cross hairs to test the edges/sides/center of the bed to see how flat it is, and to see how well the infilling goes at various points on the bed. I use a gauge for calibrating now, but I've used this test before to tweak my bed.

http://www.thingiverse.com/thing:1053372

[insta]

moving this to "how-to", as I bet we can make it quite a slick thread.