Quickie Engineer's abundant drawing features are powerful and easy to use. The program is used in professional engineering, drafting and architectural applications and as a personal CAD system for casual and household drawings. Quickie Engineer has many...

WingMaster wing designer is software for model airplane wing design. Specify camber and centerline sheeting of an airfoil along with hundreds of other features. WingMaster lets you produce any NACA 4-digit, 5-digit, or 6-series airfoil, or select from...

Plot2000

Plot2000 2.5

Plot2000 offers fast plotting, batch plotting, and plot billing for AutoCAD versions 2000 thru 2004. Plot2000 allows creation of an unlimited number of pre-set plot macros, and automatically creates a pull-down for quickly generating plots. Batch plotting...

FilterPro

FilterPro 1.03.3

FilterPro MFB and Sallen-Key Design Program designs low-pass and high-pass filters using opamps, resistors, and capacitors. This program supports Bessell, Butterworth, and Chebychev filter types and can be used to design filters from 1 to 10 poles. The...

FreeCAD is a basic 3D CAD with advanced motion simulation capabilities. It is suitable for anyone interested in learning 3D CAD and motion simulation for free before using more sophisticated packages. Educators, students, and new engineers will find it...

Punch Software Super Home Suite makes it easy to design interior and exterior home improvement projects or entire homes in Photorealistic 3D with vivid colors and textures. Created by professionals, Punch Super Home Suite lets you draft and frame while...