Jonathan Westhues has developed SolveSpace. It is a free libre and open source 2D and 3D CAD (computer-aided design) program that runs on Windows, Linux and Mac OS. The software is written in C language and licensed under GNU GPL 3+ license. The stable version 2.3 release date of this software is December 24, 2016.
Most programs on Windows have an alternative available on the Mac with the notable exception of CAD/CAM programs; there are relatively few popular CAD/CAM programs that run on OSX.
2d Cad Software For Mac
The list below is a good starting point for Mac-friendly 3D CAD programs:
OnShape
OnShape (Free - $80/Month)- OnShape is a new cloud-based CAD program from the same team that created Solidworks. It runs completely in the browser so it runs on PC, OS/X or even an iPad. There’s a range of pricing options and for many users, it’s totally free.
solidThinking
- Other 2D CAD Software for Different Platforms. There is a plenty of 2D Cad software available in various platforms like Linux, Mac Os, and Windows. This software is platform dependent and they work with the platforms that they are designed for, hence one should check for platform compatibility.
- Modification Date: October 11, 2019. Requirements: Mac OS X 10.11 or higher - 64-bit. AutoCAD is computer-aided design (CAD) software that architects, engineers, and construction professionals rely on to create precise 2D and 3D drawings. License: Demo, $200/month - $1,288/year - Free Educational Community Software.
http://www.solidthinking.com/(Call them for pricing) solidThinking offers a number of CAD programs that seem to be very powerful. They seem to have a business model where you contact them for demos and pricing so they may only be an option if you’re really comitted to learning more about their products.
Via Cad
Cad Software For Mac
http://www.punchcad.com/($99) Via CAD is a very capable 2D/3D CAD program that uses a “real” CAD kernel and it capable of creating good parts for relatively little money.
Sketchup
3d Cad Software For Mac
http://sketchup.com/($500 for Pro or Free for Standard) Sketchup is a very easy-to-use CAD program that scales well from tiny parts up to complete buildings. If you don’t have a lot of CAD experience, then you may find this to be a gentle introduction to the whole process.
One thing to note- only the Pro version is able to export an STL file for use in CNC applications. There are plugins available for free that add this function to the free version. Googling “Sketchup STL Plugin” should give you a list of the options that are currently available.
FreeCAD
https://www.freecadweb.org/(Free) FreeCAD is a totally free and open-source parametric CAD package. Many of the open-source CAD/CAM options are a little rough because they are not incredibly popular so they don’t get as much development attention as more popular open-source programs.
That being said, FreeCAD is worth a look if you want a parametric CAD program that doesn’t have huge maintenence fees (like many do) or risk having the price terms changed in the future (like Inventor Fusion).