LeoCAD is an amazingly simple CAD program that uses Lego blocks as the design tool. It's very simple, intuitive, and overall quick to learn!
LeoCAD is great for any Lego enthusiast who wants to build amazing Lego creations but wants to make sure that they'll work before getting started on actually building them. LeoCAD uses a simple interface so even people who have no previous CAD experience will be able to jump in and start creating designs right away.
The main building screen first allows you to select your base so you have a limit on how large your creation can be. Then you get to select individual pieces that you want to add to your creation. LeoCAD's library is extensive here containing every piece released for the Lego system. It splits it up into the type of piece so you can more quickly and easily find what you're looking for. Once you find the right piece you can then choose its color so it will look perfect with your design!
Upon selecting the correct piece you can then drag it into place in the main screen. The pieces snap together just like with real pieces so it almost feels like you're really handling real Lego pieces! Once you're done creating your masterpiece you can use the cameras to pan around it to make sure that everything is fully functional and your masterpiece will really work!
If you're fully happy with your creation you can print our schematics so you can more easily build the physical version. You can also save the file and upload it to the web to share with other Lego fanatics! This also allows you to download other people's work so you can get inspirations for new design ideas or just see what else you can do!
LeoCAD runs on Windows, Linux, and macOS so you can download the version appropriate for your hardware. The program is completely free so you can download it and use it as much as you want without ever feeling any obligation to pay for it!
LeoCAD allows you to easily see your creation and understand exactly how it works before trying to actually build it!