Calibrate E-steps, flow and hole xy expansion before printing for best fit!

A side project I made while procrastinating a different one :L

It includes legends for the sizes but that unfortunately doesn't show well on transparent filament. Also in v1 the allen key legends are obscured on the wrenches side but that's fixed in v2. V2 also takes a bit less time to print and has its clearances increased (V1 was basically exact sizing).
 

also no v1 stl file bc I forgot to export that before making v2