Home
Search
Home Site Map
Laser Basics
Speed is NOT Equal to Productivity !
IPS, Inch Per Second, stands for the number of inches that a motor can travel in one second and is commonly used as a standard for comparing the speed of a motor. The IPS value simply informs us the maximum speed that a motor can attain.
However, a high IPS value does not equal to high productivity. Productivity should be measured in terms of how much work can be done within a certain time or by its throughput value. An IPS value does not reveal the acceleration time required for a motor to achieve its maximum speed and thus discounting the time spent on acceleration. And hence it is possible that machines with lower IPS motors can actually have a higher throughput when compared to machines equipped with high IPS motors.



The above graph shows the speed/time relation of two motors with different IPS. Normally, the laser works when the lens carriage has achieved constant speed. So the rectangular area under the graph is the amount of work done (distance traveled). And hence, we can see that it is possible that given the same acceleration speed, a 100IPS motor may end up taking more time than the 80IPS motor to finish the same job due to the time needed for acceleration and deceleration. While an engraving job is a succession of acceleration and deceleration magnifying the importance of the acceleration speed.

Therefore the right way to calculate the productivity of a laser engraving machine is by inch /sec or PPM (Pages per Minutes).

 

LaserPro Invites you for Productivity Contest

Run a 2"x2" black square at 100% speed and 500 or 600 DPI, record the time required and compare to GCC LaserPro machines to find out who is the ultimate winner.

 
Back to top
Back  
Copyright © 2003 GCC. All rights reserved.  
  About LaserPro / GCCWorld.com / Distributor Club / LaserMaterial.com / Private Policy