Equipment/HPC LS3060 Laser Cutter/QCad
Qcad is a useful and free program to make DXF files for use with the laser cutter.
You can download it here for windows, mac or linux: 
The documentation is a bit thin on the ground. The official stuff is here:
Other tutorials are here:
Example and tips
There are 2 stages to create each part of a new shape:
1/- choose what type of shape you want
2/- this will usually change the toolbar to the snap tools. These let you choose to snap to grid, snap to edges etc. You can change these as you draw.
The lower toolbar gives you hints about what input the program expects next.
Qcad comes with some built in fonts. I haven't worked out how to import more, but here is a pic of all the fonts available: