All of the dimensions for the Arduino Nano (Electronics Parts/Boards/Arduino/Nano-Rev3_0.step) are pretty wrong. Expectation:  +milimeters  Reality:  Other expectation:  Other reality:  Comparison (Grey one is correctly dimension-ed CPd):  
All of the dimensions for the Arduino Nano (Electronics Parts/Boards/Arduino/Nano-Rev3_0.step) are pretty wrong.
Expectation:


+milimeters
Reality:
Other expectation:

Other reality:

Comparison (Grey one is correctly dimension-ed CPd):

