HEATKEYS

A CAD hatch library, hundreds of FREE AutoCAD hatch patterns, including wood, stone and stonework patterns

The Most Believable Architectural Stone Veneer in the World, Eldorado Stone.

CAD Tutorials and Best Practices

IEEE Xplore. Delivering full text access to the world

Select a product from the list below for Knowledge Base, and other technical support information.

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Official Harger site - Full line supplier of lightning protection and grounding equipment for the communications and electrical fields

This is a site of AC4M on digital modes, digital contest, tips and tricks on digital modes, correcting common mistakes, understanding digital modes more.

Developers of High Quality, Low Cost Add-Ons for AutoCAD

Artlandia: Award-wining software for creating repeat patterns, Illustrator and Photoshop plug-ins, royalty-free designs in repeat, pattern design resources, illustrated glossary of pattern design, and more.