This is a tall hexagon that you can print on a deltabot to isolate errors in linear motion of your deltabot. Typical errors that you can spot from these are:
idler/pulley runout (manifests as a repeated bump along Z of the affected side, period should be equal to circumference of your idler/pulley).
linear motion wheel runout (manifests a consistent repeated wavy wall on the affected side, period should be equal to circumference of your wheel)
slipping pulleys or missed steps (semi-random wavy walls on the affected side)
bumpy rails (bumpy pattern will be drawn on the affected sides)
hyperair
