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…

An add-on for AUTOCAD or BricsCAD, for the triangulation of a set of POINTS, isolines, DWG to Google Earth, the volume and center of gravity of a set of bodies or between surfaces composed of 3DFACE. You can load a file of points having the format: Number X Y Z Code. You can make cross sections, longitudinal profile and color-filled contour map. You can determine the flatness of the surfaces and you can import and export LandXML file type! 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…

The ultimate home design solution - Professional 3D CAD modeling software for designers, draftsmen, decorators and landscapers More…