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Custom Integration of Motion Systems and Workstations
 

With an extensive background in electrical and mechanical engineering, electromechanical design, tool design, systems integration, optics and laser physics, Laser-Applications-dot-Net has the know-how and experience to design and build your high  precision custom-application laser system.   

 

We now offer this service using motion and workstation equipment  which is used but guaranteed to be in as new condition.  Combine this with the appropriate  Fiber Laser, Pulsed YAG, Q-Switched YAG, Picosecond or Femtosecond laser as required and the savings speak for themselves. This is a very exciting way of saving a lot of money on very high quality mechanical and laser systems.

 

Here is an example of an extremely sophisticated air bearing workstation which may be combined with any laser for the equivalent of a

$ 400,000 to $ 500,000 system.  This may become a Class I laser workstation with moving beam delivery. Options might include Auto-Focus and tooling which will make this ideal as a SMT Stencil Cutting system.  Please contact us for a quote to see how inexpensive this equipment can be.

 

   

 

Workspace = 4-Axis:  650x550x100mm + Theta (in horizontal plane) 
Motors = Trilogy model LM310 Linear Motors for X & Y, model LM210 for Z 
Encoders = Heidenhain or Renishaw Equivalent (max clock rate = 8meg/sec)
Controller = DeltaTau High Performance PMAC, packaged with amps as Dover "DMM-2100" or "DMM-2150"   
Enclosure = HEPA Filtered, safety interlock switches, with electronic rack spaces around bottom skirt of frame
. 
External Dimensions: 60"x 60"x 80" 
Weight: 5000lbs. 
Facilities Requirement: 50/60hz AC Power, Clean Dry Air 7CFM
 

This was originally designed for Lucent Technologies for applications in Display and Electro-Optics inspection, manufacturing, and testing.  Generally, you can expect to be able to have acceleration exceeding 0.5G, and velocity  greater than 1000mm/sec. in both X and Y. The limits of acceleration are the effects of reaction forces and vibration  induced into the system.  Structurally, the bearings and motors are capable of much higher accelerations, but for precision tasks, the resulting displacements are impractically great.  Velocity limits are imposed by the amplifiers and by the ability to track encoder counts (8megacounts/sec for Heidenhain interpolators) , not by the mechanics and physics of the gantry design. 

 

Of much greater interest is the repeatability and accuracy of motion:  For X-Y position, you can return to the same encoder position within less than 2 counts.  The ultimate limit on accuracy is temperature stability, and the associated  TC's of granite, aluminum and other materials.  Typical encoder count is 0.1micron, however this can be made larger or smaller according to settings chosen.

 

The bases are Rock Of Ages granite surface plates calibrated to micro-inch flatness measurements.  All systems have a 2" pattern of threaded inserts for attaching fixtures, tooling, and work.    Enclosures are HEPA filtered in top, and include safety interlock switches.  On inspection, you will find these systems to be "as-new" because all were used in a clean-room environment, and air bearings are inherently non-contact, thus there is little of no mechanical wear.

 

X-Axis 550mm (bar of "H")
Yaw 0.8arc-sec, Pitch 3.19arc-sec, Straightness 1.76um, Flatness <5um, Accuracy +/-15-20um,
Accuracy With Compensation +/-5um Over Full Travel / 0.79um +/-1um Over 6" Move / 0.17um,
Position Repeatability <2.54um / 0.39um, Homing Repeatability 0.24um

 

 

  

Y-Axis 650mm (Left and Right posts of "H")
Yaw 1.25arc-sec, Pitch 6.01arc-sec, Straightness/Compensation 1.18um, Flatness<5um
  Accuracy +/-15-20um,  Accuracy With Compensation +/-5um Over Full Travel, 1.03um +/-1um Over 6" Move.
Position Repeatability 0.63um, Homing Repeatability 0.86um

 

 

Z-Axis = 100mm (on X-axis)
Z-Axis Square wrt X-Axis +/-10arc-sec, Z-Axis Square wrt Y-Axis +/-10arc-sec,
Accuracy <2.54um,

Homing Repeatability 0.75um

 

For more information or to discuss your application, please Contact Us