pishta
I know I'm right....
Check this out. I needed to blast a part and tried to do it out in the corner but created a huge mess. So I made an enclosure to contain the media. I made it out of all things, ceiling tile! This is the lightweight stuff the suspended ceilings in offices is made of. It comes in 2X4 pieces for 3.50 a piece from Home Depot. Youll need 4 pieces, and a piece of glass (2 buck scrap piece from IKEA "as-is" section. 3 pieces are the top and long sides, the forth piece is cut in half for the 2 end caps. I used 3" nails to fasten them together, They just push in like long thumbtacks. cut a window out of the top and lay your glass piece over the hole, frame it with scrap pieces of tile so you can lift it off. This is where you put the parts in. I had a cheap blast gun that had a little screw on tank, but found I was refilling the 1L tank every 2 minutes, so I found a 4 foot long piece of plastic tubing and clamped it to the pickup and put the other end into a 50lb bad of play sand. Now I have a good 30 minutes of blasting. I run a smaller compressor, 6CFM at 90PSI and it seems to always be on. The gun is labeled at 5CFM at 60-90 PSI. The entire thing sits on top of an old dresser so it has a sturdy floor, and I can lift the entire thing off to sweep the media into the sifter to reuse, it only weighs about 5 lbs. I will line the interior with an old bed sheet so the walls dont decay over time (the stuff is very soft). I poked a 2" hole in the top rear wall and put my shop vac hose in there to ventilate the cabinet while the holes in the front for my arm and the air/media hose supply the fresh air intake. There is enough air coming into the unsealed arm hole to prevent any sand from coming out. The clear air sweeps past the window to keep everything clear. I had a brooders lamp that I took the reflector off of and stuck that in the side to illuminate the work. I blasted an intake and its a slow process, but Im only using cheap sand, black beauty or glass bead would work much better. I know that silica sand is bad stuff to blast with, but I figure if I discharge the shop vac to the outside of the garage, itll be safe enough until I get the real stuff, and I do wear a cheap dust mask while Im doing this. I just ran a hose from the outlet of the shop vac (jalf filled with water) to the vent of the garage. Who sells that black coke slag cheap? Happy blasting!
