Guest Editorial

Real versus Simulated Laboratory Equipment

Over the last decade virtual hardware has been implemented effectively into many engineering technology laboratories.  An area with which I am familiar is CNC machine tool simulation.  I believe it is possible to replace completely real machine tools and teach students entirely on the computer-simulated hardware.

 Virtual laboratories have many advantages over hardware-based laboratories.  First and foremost is safety.  I never worry about accidents when my students cut a toolpath on a computer simulation.  Second the cost associated with a software laboratory is a small percentage of the cost of a real machine.  My students can now program and simulate 5-axis mills that would cost over a quarter of a million dollars each if purchased.

 On the other hand, I tell myself that students still need experience on real hardware.  I have not declared the CNC mills and lathes in our laboratories as salvage.  My students still break tools and drill holes with end mills.  I continually tell myself that the virtual equipment is only a supplement to the real hardware.

Engineering Technology faculty in all fields face a similar decision to the one just described.  Realistic computer simulations are available in almost every area of study.  Many of them claim to be complete laboratories.  Can a student complete a technical program and only use computer simulations? Should a student complete a technical program and only use computer simulations?  What is the balance between real and simulated laboratory equipment?  How should faculty make this decision?  

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