TIPS NO: 227
Revision:
Date: Aug 2002

 

Corning® SunSensors® Lens Drilling Information

 

Purpose: To provide instructions for drilling SunSensors and other plastic lens products.

1. When doing three-piece rimless frames it is best to use polycarbonate lenses for maximum durability. However, other plastic lenses can successfully be drilled, mounted, and dispensed if certain precautions are taken.

· Use a bur-type drill bit vs. a twist drill bit.

bit head

· Drill slowly through the material. If a CNC or other automated drilling machine is used, set the feed rate on the polycarbonate mode.

· Chamfer the lens at the drill holes on the front and back with a cone-shaped

stone Dremel tool or a Lens Cutting Broach.

· Use nylon Top Hat Bushings in the holes for cushioning.

· Do not over-tighten the screws.

· Use the appropriate pliers for frame stability and support when adjusting.

end result

 

 

Corning is a registered trademark, and SunSensors is a trademark of Corning Incorporated, Corning, New York.