True Open source tension meter for GT2 belts

So Prusa decided to release their "open source" design of Tension Meter for the GT2 belts of i3 MK3S+ or Prusa MINI+ in g-code format because "the print settings cannot be changed to keep the meter working properly."

• This design is made based on their gcode file with eyeball measuring. Use at your own risk.
• STL, STEP , FreeCAD format are availabe for download.
• The lite version with small indicator but will act the same as the normal version.

• No print setting from Prusa yet, but as I can see in the gcode-file and gcode render; 

  external perimeters extrusion width = 0.45mm; perimeters extrusion width = 0.45mm; infill extrusion width = 0.45mm; solid infill extrusion width = 0.45mm; top infill extrusion width = 0.40mm; first layer extrusion width = 0.45mm; and 100% infill (or the model too small so there are only walls/perimeters)

Print the part with PETG, if possible use Prusament PETG because they made the model using their filament. Not all filament are the same, other brand(or even same brand but difference corlor) have difference characteristics.