Currently I am using a number of $10/hour (per printer) for a charge out rate for in the PromoScience application. Do you guys think this is reasonable based on the above? That is just for power consumption/upkeep and does not cover any materials consumed.

I think fair market for laser cutting starts around $1.25/min currently (if anyone has gotten a quoted rate that differs significantly please let me know). This extends to $75/hr. How do you think $10/hr for 3d printing compares based on what it actually costs to run/maintain?