UM3: Please make manual levelling less painful

[kfsone 5]

Unleveled bed leads to two extremes: nothing leaves the nozzle, or nothing sticks to the plate.

After levelling, how do you know which way you've gone? Well, you print something.

 

So give about 1 minute for the leveling process, the time an autolevel takes plus the time it takes to print something simple, and you end up wasting a lot of time.

 

So cut it short:

 

Incorporate a simple option to print a test square with diagonals from the tail end of manual levelling. Thus flow becomes:

Manual Levelling > OK > Back position > Front Right > Front Left > Z-Offset > Auto-Level? > Test Print? > Repeat?

It'd be really helpful to have the print try and print a couple lines, at least, after levelling. I'd personally be inclined to ask the user questions that would help me adjust the offsets.