11-in-1 calibration block (English / SAE)

thingiverse

This calibration block contains 11 tests, including horizontal and vertical hole diameter checks, 3-axis feature minimum width test, scaling accuracy via a 1/2" cube cutout, rounded feature and fillet minimum size measurements, max tower height to diameter ratio assessment, max build hangover angle test (ranging from 30 to 80 degrees), and minimum layer thickness evaluation. The block also requires calipers for measuring min/max feature sizes specific to your printer, with a recommended print fill of 5%. A metric version is available at http://www.thingiverse.com/thing:423263. Note that v1.3 includes additional text and protrusions in the block design as part of a bug fix, with modified dimensions of 3.375" x 1" x 1.25".