More measurements

As discussed last time, I needed to get some more solid data for the alignment.  Here it is:

 

Trailing edge, two fences
Left Right Skew
36.54 37.2 0.66
36.42 37.08 0.66
36.86 37.46 0.6
36.58 37.1 0.52
36.74 37.34 0.6
36.7 37.26 0.56
36.68 37.26 0.58
36.6    
36.6 37.24 0.64
36.6 37.22 0.62
36.88 37.52 0.64
0.14 0.14 0.05

The missing result is due to my getting distracted and wiping off the toner before taking the second measurement. The results clearly show that the second fence works well at keeping the board aligned. There is around 0.14mm of variation in vertical alignment. As planned, I will replace the trailing edge sensor with a mechanical one with some good debouncing. The measurements are all smaller than they were last time because I was using a shorter piece of board.

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