Yes,I've done a lot of it.60cfm means you can run probably a 5/16 or 3/8" nozzle.
Screen your sand,dry sand is a must,the least little bit of moisture and it clumps and clogs the works.
The most important thing is breathing air.A good hood,with a clean safe air supply is a must.
Here is an example of a compressed airline breathing air filter/regulator from Clemco,they also provide enough air to use a venturi cooler under the hood,nice in hot weather.
http://www.clemcoindustries.com/prod...?item_id=03578
Clemco also makes pressure pots and other accesories.-
http://www.clemcoindustries.com/products.html
I prefer a pressure pot,but a well made syphon/gravity feed system works well so long as you have dry,consistent sand.
I just need one more tool,just one!