Mini:

Improved print quality by tightening the Y-axis (bed) belt and also found the glass bed was loose in the rubber holders.  I added some paper spacers to get that snug.

Mini #2: 

Printing a large print fine

Prusa:   

Printed a large print fine

Taz 3:   

Printed a large print fine.

Taz 5:   

Printed a large print fine.