User’s Guides in PDF Format

Click links to view, right click to save. Requires PDF viewer such as the free Adobe Reader™. Left click to view or print, right click to save.

• GemCad User’ Guide
• GemRay User’ Guide

Other languages:

• Deutch: GemCad Bedienungsanleitung
• Español: GemCad para Windows Manual de Usuario

GemCad Tutorial Videos on YouTube

Click on the links to open the YouTube player in a new window.

• Beginner: Designing a 9-Main Round Brilliant for a 72 Index Gear
• Intermediate: Designing a 9-Main Round Brilliant for a 96 Index Gear
• New: Intermediate: Designing a Baguette (Emerald Baguette)
• Advanced: Designing a Checkerboard Cushion Rectangle
• 1. Square version
  2. Splice in a row of facets to stretch
  3. Designing an OMNI pavilion
  4. Annotate the faceting diagram
  5. Strecth to other L/W

GemRay Demo Videos on YouTube

These videos demonstrate a test version of GemRay. There are some minor differences between the test version and the release version, but these give a good introduction. Click on the links to open the YouTube player in a new window.

1. The animation player and lighting models
2. Color
3. Tilt and rotation animation
4. Dispersion
5. Optimizing angles, Part I
6. Optimizing angles, Part II

New: GemCad Blog

Blog posts on how to use GemCad—mostly for intermediate to advanced level users.

• gemcad.blogspot.com