Learn AutoCAD

AutoCAD Tutorial for Beginners

AutoCAD is the industry standard when it comes to computer aided design. Although the program may look intimidating at first, getting started is simple and with just a few tools you can be drawing without much assistance. The video above and the tutorial below covers how to navigate the AutoCAD interface, use commands to draw lines and shapes, how to connect lines, and draw shapes with specific dimensions and coordinates.
LibreCAD vs QCAD

LibreCAD vs QCAD

On the surface QCAD and LibreCAD and every other 2D CAD software is the same, offering the same basic tools, user interface, and supported file formats. The small differences will either have you praising the software developers or cursing them as you spend your precious time fiddling with the quirks. In 2011 LibreCAD was forked from QCAD version 2. In the software development community, forking is the process of duplicating a project and having it be developed by a different group of engineers.

Free CAD Software

For non-professionals, it’s difficult to warrant paying thousands of dollars on CAD software. Free CAD software is available and many times will work fine in lieu of paid software. Below is a list of 2D and 3D CAD programs that you can use for free. Some of the options below are free versions of paid software. In many of the cases, the free versions offer great functionality and many of the same tools, but may limit you from using the software commercially.
Floor Plan

DXF Blocks for Floor Plans

Floor plan design requires you to add fixtures into your drawing. Without adding fixtures to your drawing, you won’t know if the room will work. When creating floor plans, you’ll need: toilets, cabinets, bath tubs, sinks, laundry machines, water heater, furnace, and doors. You could obviously create all of these yourself, but trying to find the correct dimensions of some of these objects can be a bit tedious. Below is a list of resources where you can download free DXF files for the above fixtures.
LibreCAD Drawing Units

LibreCAD Convert Drawing Units

Fixing the unit type of LibreCAD drawings is simple, not fixing it will cause lots of problems down the road. Depending on whether you want the drawing to remain the same physical size or to just correct setting the wrong unit type, there are two ways to go about it. Fixing Incorrect Unit Type If you started a drawing without realizing it was drawn while set to the wrong unit, changing to a different unit is easy.