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The Challenge:
Photovoltaics (PV) is a high-technology approach to converting sunlight directly into  electrical energy. Simply stated, a
photo-voltaic device is a solar powered battery whose only consumable is the light that fuels it. Photocells are used to power devices ranging from watches to
space stations. A manufacturer of photovoltaic cells is developing a new type of PV module and requires a multi-axis positioner for manipulating laser light to create a  photovoltaic image in glass. This system
requires four axes of motion: three linear axes (XYZ), and a rotary axis (q).To position the laser above the desired cell. The customer required high through-put in combination with a high degree of
precision.
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The Solution:
To meet travel, load, throughput and precision specifications, a Daedal LXR based gantry system was selected for the X-Y support axes. Two parallel
mounted 406LXR units are used to form the X-X axis and a single unit for the cross member Y axis. Although the extruded construction of 406LXR provides a high degree of rigidity, a stiffener plate was
added for the higher strength and rigidity required to support the Z-axis, q axis and laser device (without compromising the straightness of travel specification).
The 406LXRs
high acceleration/velocity attributes, combine with precise positioning and quick settling time to satisfy the stringent performance requirements for this demanding application.
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