With careful planning you can significantly increase the thickness you can cut with a cheap laser cutter. At least 1/2" with a 50W laser is possible.
Tip- If you don't have your x=0, y=0 axis indexed like I do in the video, you can just tape down thick cardboard or something to the table and cut your guide straight out.
It wont be reusable, but it will get the job done for as long as you keep it in place.
I have more tips on using a cheap Chinese laser cutter at my website: makestuffnow.com.au/laser-cutting/
17 jul 2016