Bed Level Correction Assistant

#Make bed level correction easier and quicker!
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##Optimized for Original Prusa printers.
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##(Mostly)Parametric Fusion 360 design file included
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###Procedure: (Assuming you cleared EEPROM and have to start over)
- Run XYZ Calibration
- Meanwhile slice all 4 STLs with your general settings
- Run First Layer Calibration to achieve basic adhesion
- Print **Live Z.stl**, observe bottom face and adjust Live Z, repeat until desirable bottom surface finish is achieved
- Repeat with **Front_Back.stl**, please note L shaped indicator points to the *front* of the machine, adjust Bed Level Correction.
- Repeat with **Left_Right.stl**, this time indicator is on the *left* side and is also pointing to the front.
- Finally print **Whole Bed.stl** to confirm and compare all bottom finish of all squares.