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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 |