Design Master HVAC is an integrated HVAC building design and drafting program that runs on top of AutoCAD. Drafting features include single-line and double-line 2D ductwork with automatic fittings and 3D ductwork. Duct sizing calculations include constant pressure drop, constant velocity, and static regain. Pressure drop in the duct system can also be calculated. Building load calculations are done using the ASHRAE CLTD method. More…

CAD Viewer for Pocket PC. Formats supported: DWG R9 thru DWG 2007, DXF R19 thru 2007, HPGL (PLT, HGL, RTL, PRN, etc.), SVG, CGM, BMP, JPG, TIFF, GIF, ICO. DWG/DXF layouts and 3D-Orbit are supported. Pocket PC DWG Viewer supports almost all entities, including hatches, rotated texts with top/bottom symbols, viewports, etc. More…

MITCalc is the multi-language mechanical and technical calculation package. It includes solutions for gear, belt and chain drives, springs, beam, shaft, bolt connection, tolerances, welding, shaft connection and many others. The calculations are compatible with many 2D and 3D CAD systems (AutoCAD, Iventor, Solidworks...) and support both Imperial and Metric units and are processed according to ANSI, ISO, DIN, EN, BS, Japanese and other standards. More…

A picture is worth a thousand words. A clear, self-explanatory, striking picture - whether it's a flowchart, diagram, illustration or technical drawing - may be worth a new contract, extra sales channels, more revenue, and additional clientele. DiagramStudio flowchart software is a tool that helps thousands of individuals and organizations create convincing, eloquent and visually appealing presentations. More…

ProfiCAD is a budget-friendly CAD software for electrical and electronic diagrams, schematics, and more. It automates symbol numbering and generates netlists, materials, and wires lists. Features include cross-references, batch printing, and easy integration with Office. Supports Unicode and DXF exports. Comes with an extensive symbol library and customizable title blocks. Ideal for professionals and beginners, it's free for non-commercial use. More…

This program features DWG to PDF conversion, DXF to PDF conversion, and DWF to PDF conversion without Autodesk AutoCAD or Adobe Acrobat. You can even batch publish your DWG, DXF, DWF drawing files to PDF files of any size to answer your specific needs, such as to facilitate the readers of your CAD drawings who have no AutoCAD-based software products installed on their computers; PDF is an open standard for audiences from almost all walks. More…