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MassPlus Area Properties Software for AutoCAD

Free version of MassPlus v9.0 may be upgraded to the Licensed version using the following links:

Click here to order  Secure order MassPlus Online       
      
           

Updated release date April 3, 2019.  Free evaluation version.  View and print AutoCAD DWG and MicroStation DGN files. Calculate section properties (moments of inertia, section modulus, etc.) software.Now supports Win 7 and Win 10, mesh display, splines, plastic section modulus Zx and Zy,  and thru AutoCAD 2017 drawings. Click here for new features.  New version directly interfaces with AutoCAD via autolisp.  Selected entities for calculation are now displayed in the MassPlus graphics window. 

  • Results may be exported to CSV (Excel file) .  

  • Section mesh may be exported to AutoCAD dxf format.   New

  • Calculation results may be exported to AutoCAD dxf

Massplus Release Notes 

Click here to order!

Can your AutoCAD software calculate area properties for a complicated section like this?  MassPlus v9.0 can!  Easily!

Download MassPlus v9.0 demo!

moment of inertia, steel section properties, engineering software, autocad lt, section modulus, centroid

Overview

MassPlus is an engineering software application which calculates the area properties of any two-dimensional AutoCAD geometry.  One common application is for analyzing steel section properties and aluminum extrusions.  MassPlus supports exported 2D profiles from 3D packages like SolidWorks, etc.  New version 9.0 supports the newer versions of AutoCAD. 

See product comparison mpcompare.pdf

See also frequently asked questions mpfaq.pdf.

MassPlus values and Equivalent AutoCAD Mass Properties values:

MassPlus - AutoCAD MassProp.pdf

“Versatile software and excellent customer support.” Tim VanderMey, Proton Design, Inc.

“MassPlus is a very handy software for the oddball shapes we run in to.  It computes all the properties we require to run our analysis.  The customer service and e-mail response time is top-notch.”-Nicholas Valentin, P.E. 

"MassPlus is just what I needed to supply data for windload calculations!" T.L., Orlando, FL

"I originally found it by doing a Google search and I used it in the past 5 years and found it to be a very helpful tool to calculate properties of very complex shapes." Alwyn McDowall, Skyline Steel

"Thank you for the support, I was not expecting to see such rapid responses for software from a US Company in the UK, but you have quickly and effectively solved the issue that arose. Do pass on my recommendation to others or put it on your website, we find this programme extremely useful.  Cheers."  Kevin Armstrong, Factory-Fit (UK) Limited

More references...

To demonstrate the accuracy of MassPlus v9.0, accurate values are calculated for the Area, the X and Y values of  the centroid, the Moment of Inertia about the X-axis, Product of Inertia about the drawing's origin, and the Radius of Gyration about the X-axis of the drawing's origin.     You can compare these values to your current calculations.  MassPlus automatically detects holes in the section.  The section mesh displays the geometry being analyzed

The centroidal axes are also displayed providing instant visual confirmation if the section is being correctly analyzed. 

Sample Steel Wide Flange Section Drawing Results Compare

Sample One Inch Steel Pipe Section Drawing Results Compare

Sample Calculation:  Section Results

Other calculations:  Sample Beam   Hollow Circle

Download demo for MassPlus 9.0 mpwin9x.zip

Installation Instructions MassPlus 9.0 mp_install.htm

MassPlus 9.0 HTML Help File massplus90.chm 

Note: Compiled HTML Help Files (.chm) must be saved locally using "Save" before you can see the topics!  Simply Opening the file will not work! This is a Microsoft security requirement.

Free calculation offer.  Instead of providing a trial version, CSUI is now offering free calculation for one shape per user.  Email sample drawing to mpsales@slickwin.com and CSUI will send you the results.  Please do not send raster images such as jpgs, tiffs, etc. 

The drawing must contain only one shape!  All drawing entities that are not part of the shape such as dimension lines, text, graphics, and unexploded regions, must be removed and that the shape is hatchable before submission. 


Problems running MassPlus or getting incorrect results? Click on mpfaq.pdf


Pricing

MassPlus v9.0 is priced at $99.00 per single-user license for a Two Year license.  Upgrade pricing for existing users of MassPlus is $79 per single-user license.  

Click here to order  Secure order MassPlus Online       

Calculated Values

Sym    Represented Value     

Area

x, y Centroid relative to drawing origin

x, y Centroid relative to section origin

Section Width and Section Height

Maximum section distance from centroid

Ixx        Moment of Inertia about the X axis of the centroid

Iyy        Moment of Inertia about the Y axis of the centroid

Jz         Polar moment of Inertia about the centroid

Pxy      Product of Inertia about the centroidal axes

rxx       Radius of gyration about the X axis of the centroid

ryy       Radius of gyration about the Y axis of the centroid

Sxx      Section Modulus with the neutral axis thru the y-value of the centroid using the formula Ixx / c

Syy      Section Modulus with the neutral axis thru the x-value of the centroid using the formula Iyy / c

Sxx min, max thru y-value of the centroid

Syy min, max thru x-value of the centroid

Zx - Plastic Section Modulus

Zy - Plastic Section Modulus

Plastic Neutral Axis distances from section top and section bottom

Ix’x’    Moment of Inertia about the X axis of the drawing origin

Iy’y’     Moment of Inertia about the Y axis of the drawing origin

Jz’        Polar moment of Inertia about the drawing’s origin

Px’y’    Product of Inertia about the drawing’s axes thru the origin

rx’x’     Radius of gyration about the X axis of the drawing’s origin

ry’y’     Radius of gyration about the Y axis of the drawing’s origin

Imax     Principal moment of Inertia (maximum)

Imin      Principal moment of Inertia (minimum)


System Requirements

Any Windows 2000 or higher system 

 


 

 

Sample Outputs in AutoCAD Window using MassPlus Standard version

moment of inertia, engineering software, autocad lt, section modulus, centroid

moment of inertia, steel section properties, engineering software, autocad lt, section modulus, centroid


Sample import of MassPlus results into AutoCAD drawing using Autolisp

Also available from CSU - SlickViewPlus! and SlickPdfPlus View AutoCAD , HPGL, cals g4, tiff, jpg, jedmics, plus over 200 file native formats.

Click here for more information!

Google
 
 

"MassPlus is an essential tool in designing with extruded aluminum shapes. It is very simple & easy to use and affordable. I highly recommend"

David R. Pfeiffer, PE, PSE


Free calculation offer

Click here for details.  More info


Difference between MassPlus Classic and MassPlus XG mpcompare.pdf