So I bought a new porter cable orbital sander today and was sanding my tabletop between coats of polyurethane. I sanded the whole tabletop and the extensions, then shut it off and set it in my shop stool. I grabbed some sandpaper and started sanding the edges of the table by hand. After a few minutes I thought I could smell something burning. After another minute or so, the smell was getting stronger. I looked at my new sander and noticed it was smoking. I picked it up and the dust extraction bag was starting to smoke pretty good. I took the bag off and tried to dump out the contents but nothing was coming out. I walked to the front of the house to run some water on it from the spigot. By the time I got there the bag was just starting to flame up. I got it put out.
Anyone ever have that happen? I'm just glad it wasn't later and I didn't sand then shut it off and go inside to bed. Probably would have burnt the house down!