This is how to make a cheap aircompressor from parts from the junk yard, for running airtools, filling tires and pneumatic spudguns.

Step 1: Safety

This isn't quite a set of instructions but more like a guide line. Because I made this from scrap, none of the parts are standard. Also take safety into account when working with compressed air, old tanks and rust out and explode with terrible results unless you know what your doing dont make one by one. So if you make one and it bursts and blows off you leg dont come crying to me.

Step 2: The Compressor

An air compressor has three main parts, a pump, a motor, and a tank. To get these you can go to you local scrap yard, they usually have a few scrapped compressors that can give you a pump and sometime a usable tank, if not with a bit of work you can use a AC compressor from a car, if either of these is unavailable harbor freight tools sells compressor pumps. For a motor you can get one from you local motor repair shop or from a scrapped washing machine, electric lawnmotor, or even a gasoline engine(this one would require a pneumatic clutch). And as for a tank you can use one from a old compressor, but I like propane tanks, you can get from walmart or ameri-gas(amerigas usually have old tanks that have the valves removed I bought my tank for $3)