Mech-Q Engineering Software

Finally an easy to use CAD engineering software for the budget minded professional.  

CADavenue has been serving customers in North America and worldwide since 2009. We specialize engineering add-ons for AutoCAD, Bricscad and IntelliCAD and also offer a stand-alone CAD engineering software called AViCAD, designed for Windows versions XP through 10. 

Own a license or subscribe 

There are many ways to get started. Choose our perpetual license option or subscribe each month or by the year.  If you already have CAD, Engineering modules can be purchase separately. 

Free trial. No CC required! Choose either our add-on or complete CAD engineering option.  

auto cad alternative

Have questions about our products?
Call 888-271-7121 or email us.

A screenshot of our new AViCAD 2020.  Note that Mech-Q integrates directly into your CAD toolbar (classic) or ribbon. If you don't have CAD we also can provide AViCAD, our AutoCAD-Like App with Mech-Q included (shown above).

Products we offer:

Mech-Q Engineering Software
  • Add-on to your CAD
  • Get all 4 modules
  • Or Purchase individually
AViCAD Standalone CAD with Mech-Q
  • CAD App with Mech-Q!
  • Includes all 4 modules
  • AutoCAD-Like interface 
Plate n Sheet Unfolding Software For Fabrication

* Not a part of the Mech-Q Suite

  • Separate standalone * 
  • Unfolding tool for fabrication
  • Use with CNC / plasma tables

What makes Mech-Q stand apart from the rest?

Awesome features you'll find inside Mech-Q

Tools Galore

Choose from Piping, Structural, Ducting or Mechanical. A Full Suite which includes all tools is also available.

2D, 3D and ISO

Simple to use visual dialog interfaces allow you to switch between different drawing modes quickly and easily. 

Customize It

Match your office layer standards using the layers configuration tool plus edit parts with the database editor.


Since 1992 Mech-Q is trusted by tens of thousands of AutoCAD® engineers and fabrication shops worldwide.

Video Training

We've got a large selection of video learning tutorials to choose from. Many can be found on our Youtube channel.

Unlimited Support

Customer support never expires. Call us today, were in PST time 8-5 Mon.-Fri.  888-271-7121.

Mech-Q Piping is fantastic, when I draw a Flange for example, it gives me the exact dimension of the part based on what criteria I enter. When doing this by hand drafting its no comparison to what I can achieve with Mech-Q.

Paul S.


... I am using Mech-Q for ducting and pipework all day and every day now. I find them to be most useful, and really speed up the work ...

Gary Hull