http://www.johnkingsley.ca/strawbale/sprayer/v2/tls.html
Free stucco sprayer plans thanks to John Kinglsey.
(https://i778.photobucket.com/albums/yy62/the_troglodyte/sprayer_v2_1.gif)
(https://i778.photobucket.com/albums/yy62/the_troglodyte/sprayer_v2_2.gif)
See his site above for instructions and notes - more info.