1)   HatchKit 2.5
Draw patterns from scratch, open existing pattern files or import DXF or HPGL. Save to AutoCAD, LT, Revit, IntelliCAD, DataCAD, MegaCAD, MicroStation V8, TurboCAD, VersaCAD, SolidWorks and other formats ...
hatch, pattern, editor, edit, create, generate, generator, cad, autocad, Chief Architect,

 2)   Linear Algebra 2
Performs computations associated with matrices: Solves systems of linear equations, finds sum, difference, product, determinant, trace, inverse, adjoint, transpose, eigenvalues, eigenvectors, LU factors, QR factors, tests for definiteness, etc.
math, mathematics, linear algebra, matrices, engineering, science, equations, matrix algebra,

 3)   ComfortAir HVAC Software 4.0
ComfortAir HVAC software is designed to be used by engineers, architects, contractors and energy auditors for calculating and analysing heating and air conditioning hourly loads in all types of buildings. Units can be set to English or Metric.
ComfortAir, air, conditioning, hvac, cooling, heating, loads, calculation, heat, loss,

 4)   Engineering Power Tools 1.9.8
ENGINEERING POWER TOOLS solves a wide variety of common engineering problems quickly and easily. Over 70 programs and data tables integrated into one easy-to-use package. Categories include Math, HVAC, Mechanical, Electrical, Materials & Structural.
engineering, mechanical, calculations, design, HVAC, math, electrical, materials, conversion, structural,

 5)   Orifice 5.1
Orifice calculates size, flowrate or pressure drops for gas and liquid orifice meters based on ANSI/API-2530-1991, Part 3 (AGA-3) or the International Standard ISO-5167-1:1991. Customary or SI units.
Orifice, Orifice size, pressure drop, flowrate, Engineering, Design, Oil & Gas, Metering,

 6)   Terrain for Rhino 3.0 1.0
Terrain for Rhino is a terrain modeling plug-in for Rhinoceros (commonly known as Rhino). This plug-in gives Rhino the ability to create a terrain mesh from a set of unordered points.
Terrain for Rhino, terrain, rhino, rhinoceros, software, plugin, plug-in, Rhino plug-in, Rhino plugin, terrain modeling,

 7)   S3Dfree 2000 6
S3Dfree 2000 is the FREE unregistered version of Solid3D. Solid3D Fastener library is a productivity tool for AutoCAD allows you to create solid models of assorted Nuts, Bolts, Screws and Washers.
fastener, cad shareware, AutoCAD, AutoCAD add-ons, Shareware, Cad, Lisp, Autolisp, Freeware, parts,

 8)   PLCAD 1.01
PLCAD is a Windows 2D CAD software. PLCAD is a powerful drawing program that gives you the ability to create professional two-dimensional drawings.
2D, CAD, DXF, graphics, drawings, engineering, architecture, cad, eMatrix, plan,

 9)   ShapeBook with 2D3DSteel 3.10
A structural steel reference and AutoCAD drafting tool for steel construction. View dimensions and properties. Search shapes by property values. Convert shape lists between US and metric. Based on AISC Manual of Steel Construction LRFD Third Edition.
structural, steel, detailing, dimensions, design, properties, software, reference, tools, construction,

 10)   Sheet Lightning 3.60
Sheet Lightning is a specialised engineering 2D/3D CAD System for creating and unfolding sheet metal designs for fabrication or manufacture. It handles cylinders, cones, square-to-round adapters, ovals, intersections and mutli-intersections.
sheet, metal, unfold, engineering, manufacturing, CAD, 3D, CAM, education, CNC,

 11)   Easy Measure Converter 1.0
Download Free Measure Converter: inch, feet, yard, rod, furlong, mile, league, chain. Length and Distance Conversions.The program interface is quite simple so even if you are a beginner you can use it without any trouble.
Free Measure Converter, inch, feet, yard, rod, furlong, mile, league, chain, convert from to,

 12)   XYit 3.1
With XYit you can digitize xy co-ordinates of points & lines in images, enabling you to capture their original x-y values. And you can do the reverse, plotting xy numerical data back onto an image, ideal for making maps of proposed routes etc.
data capture, digitize, digitise, digitiser, digitizer, xy, co-ordinate, coordinate, science, engineering,

 13)   Gasketed Plate Heat Exchanger Design (PH 2.0.1
PHex is an easy to use tool which domonstrates the thermal calculations of Gasketed Plate Heat Exchangers
chemical, engineering, gasketed, plate, heat, exchanger, design,

 14)   Uconeer 2.4
Freeware. 397 units in 46 categories. Includes engineering specific categories like enthalpy, heat capacity, heat transfer coefficient, torque and viscosity. Work with feet and inches. Formatting and clipboard features. Excludes archaic units.
unit conversion, engineering, units, convert, freeware, measurement, SI system, metric,

 15)   Shell and Tube Heat Exchanger Design 1.4.1
Easy to use software demonstrates the chemical design calculations of Shell and Tube Heat Exchangers.Unlike other tools, ensures that calculations are performed step by step to help in understanding the design calculations...etc
heat, exchanger, design, shell, tube, process, chemical, engineering,

 16)   I C CAD 1.1.0
This is the simple, fast CAD viewer you have been looking for. Works with AutoCAD (.DWG) and Microstation (.DGN) files. When you are ready to buy, unlock the trial from within the program. Quick and easy!
AutoCAD, File Viewer, Microstation, DGN, DWG, DXF, Drawing, engineering, surveying, technical,

 17)   Robot4 0.67
Robot4 (tm) is a Robotic Arm Movement program where the arm is moved from given position to desired position (an Inverse Problem). The program finds the angles necessary for the desired position. A Fortran Calculus demo application.
Inverse Problem, Robotics, Mathematical Modeling, Engineering, Teaching, Calculus, Fortran Calculus Programming, Fortran Calculus Language, Fortran Calculus compiler,

 18)   The GD&T Trainer: Professional Edition 3.0
Effective, economical GD and T training on CD-ROM. Contains interactive lessons, technical animations, narration, 3D part drawings, course administration tools. Valuable for designers, engineers, and anyone who uses engineering drawings.
engineering, design, GD&T training, GD&T, cad, tolerancing, ASME Y14.5, geometric tolerancing, drawings, cad drawings,

 19)   Feet and Inches Calculator Freeware 1.0.50
Absolutely the best and easiest to use feet and inches (Architectural) calculator. The feet and inches calculator accepts all commonly used types of feet and inches input. The simple interface makes it extremely easy to use.
freeware, calculators, feet and inches, architectural, engineering, construction, steel-link, steel link,

 20)   Rainbow 5.11
Find best Spectral Estimation Method for a Power Spectral Density plot. A menu of 10+ spectral estimators from Steve Kay's textbook 'Modern Spectral Estimation' 1988 is available to choose from. Some estimator results differ dramatically!
Power Spectra, PSD, Spectral Estimation, spectral analysis, Spectrum, Fourier transform, FFT, Mathematics, Engineering, Teaching,