Fosta-Tek Optics Fosta-Tek Optics Engineering and Tooling   
Fosta-Tek Optics
info@fosta-tek.com  
 
ENGINEERING AND TOOLING
Our Engineering Dept has a range of CAD software including Auto CAD 14 / Mechanical Desktop, Pro-Engineer and Solid Works. Our IT Dept works closely with engineering to keep them up to date on the latest software and hardware developments. Our advanced engineering team can work with just a simple product development sketch and many types of transfer files via the Internet. We are able to work with you to design and make a product that meets your requirements, while also delivering precision optics. Some of the design guides you may want to consider are:

Engineering and Mold Design

  • ANSI Z80 and Z87 Eyewear and Face Protection Requirements,
  • Sphero-cylindrical power, prism correction, and optical resolution,
  • Gate and runner system designs to minimize stress, distortion and blush,
  • Interchangeable cavity inserts for reduced tooling costs.

We can provide you with complete mold design and construction. Our engineers, toolmakers and optical polishers have years of experience designing, building and polishing optical injection molds. In addition, we maintain our molds with the precision and care that an optical mold requires for long life.

New developments in CAE (Computer Aided Engineering) as well as CNC machining (Computer Numerically Controlled) and EDM (Electrical Discharge Machining) are allowing our tooling engineers to work with more complicated product designs.

Solid modeling software programs such as Pro Engineer make it possible to get a 3 dimensional visualization of the product and help identify design flaws such as undercuts, that can easily be overlooked in a 2D drawing. Once the part design has been optimized the 3 dimensional drawing can be used with software programs such as Mold Flow and C-Mold to analyze the flow behavior of the material through the cavity. Flow problems such as weld lines, gas traps, material stagnation, shear, stress, and hot spots can be detected prior to actual processing. With this information Engineering can optimize variables such as part thickness, part shape, gate location, gate dimensions, and runner dimensions.

The subjects below provide additional information on designing lenses and optical components:

 

Precision Molded Optics: A Design Overview


320 Hamilton Street, Leominster, MA 01453
(978) 534-6511, fax (978) 537-2168
info@fosta-tek.com