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Bill Volna's Retirement Sandbox
 
The
Facility TARDIS II:
Introduction TARDIS II:
Tee Casting TARDIS II:
Alt. Axis Housing
 
Volna Engineering Company
 

VTAS Nonmagnetic
Head Tracker Accuracy Station

The first requirement of this Visual Target Acquisition System (VTAS) device is magnetic transparency. Linen phenolic and epoxy are used to fabricate the main frame. The x, y, and z "ways" are optically polished glass, straight within 10 arc-seconds.

 
Magnetic Head Tracker Accuracy Station: Photo 1

Kinematically constrained ceramic ball spindles
provide arc-second accuracy after 18 years of service.

 
Magnetic Head Tracker Accuracy Station: Photo 2
 
Magnetic Head Tracker Accuracy Station: Photo 3
 
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