Quote Originally Posted by 1113562 View Post
Am I correct in thinking that the 4 bit BCD type readers do change the transmitted values when switching between metric and imperial? If that is the case it would be a lot easier to get the reader to do the conversion rather than the top end.
Cant say, I have never seen a BCD one, all 5 of mine are the 24bit type. My DRO processor/display will always display in mm as I dont use imperial for metalworking - but if i did it wouldn't be hard to add a in/mm button. Anyway how difficult is adding:

Code:
 
double reading_in_mm[3];
for(int I=0;i<2;i++)
  reading_in_mm[i]=reading_in_inch[i]*25.4;
display(readin_in_mm[]);
Quote Originally Posted by 1113562 View Post
Do you know if the comb fingers are isolated from each other or linked together, its hard to see on the photo. It looks like the Ts are isolated from each other.
Not looked closely, but I'd say they were...