Basically the author took an airgun, and added a bottle to it. Not sure I would do this, you can buy one like this for $18 at Harbor Freight.
https://www.homemadetools.net/forum/homemade-simple-sandblaster-video-77994?homelistings#post153124
Basically the author took an airgun, and added a bottle to it. Not sure I would do this, you can buy one like this for $18 at Harbor Freight.
https://www.homemadetools.net/forum/homemade-simple-sandblaster-video-77994?homelistings#post153124