Aaron Dahlen's PID N&V article series

[CrushBots]

Is there a discussion of Aaron Dahlen's PID article series on PID Controllers going on anywhere?<p>Also, has anyone ordered the PCB board from the February Part 2 article? I've got a very simple question - I don't have software to open the PCB file I downloaded from N&V so I can't figure out the board dimensions using the "4PCB" website bare bones special - anybody know the dimensions of the board? Or better, does anyone have an extra from 4PCB that they would be willing to sell?<p>Let me know, thanks Bob