I make this cutting table 3 years ago, and I was made many things with it.
Step 1: Any Short Explanation
The pictures are of the first version. Later I took the angle grinder to the center of the table, screwing it to a board of iron of 1/8 inch so that the sharp disk stood out more than 1/2 inch.
The angle grinder is "removes and put", that is to say that I put it when I need to cut something, and then I remove it.
The angle grinder is very very cheap, but amazingly it has lasted many time, almost ten years.
The table is collapsible and was made of a little hard wood, red eucalyptus. It tolerates the bleakness without treatment.
Once again, you forgive my English.