I was looking through the firmware for the TAZ

http://devel.lulzbot.com/TAZ/Holly/software/2014Q3_rB/Marlin/Marlin/Configuration.h

and I noticed what I thought could be a mistake. On line 424

```
#define DEFAULT_AXIS_STEPS_PER_UNIT {100.5,100.5,1600,850} // default steps per unit for TAZ {X,Y,Z,E}
```

The steps/unit for the x and y axes are set to 100.5 steps/unit. I think it should be 100 steps/unit and here is why: the formula for finding the steps per unit is (correct me if i’m wrong, please):

steps/mm = (steps / rev) x (belt_teeth / mm) x (rev / motor_pulley_teeth)

I think this is right, because the dimensional analysis checks out. If you plug in the numbers:

steps/mm = (3200) x (.5) x (1/16) = **100**

This is a pretty small difference, but over the length of the travels, this could add up. If it is supposed to be this way for some reason, somebody please fill me in.