Compact fast all-in-one calibration cube

measures

Ability to perform overhangs (numbered in 10 degree bits) Retraction (spires) Bridging Dimensional accuracy (cube 30x30x30) Various other things

0.2 at 50mm/s is approx 55 mins

pictured printed on our perennial trouble maker cr10 smart which needs calibrating on a monthly basis while everything else gets on with the job!