[TheForge] Sandblaster

[Dave Mudge]

Norm, you could buy one ready made from Harbor Freight for about $100 $150
and they work really well. They use cheap ceramic nozzles (also from HF) I
have used mine for years with the only problem being that the hose dry
rotted away. I replaced the black rubber hose with a clear vinyl that has
with a nylon web built in. Sold at Home Depot, very flexible in all
temperatures and extremely abrasive resistant. Be sure to use new DRY sand
and filter it through a piece of window screen to remove the small pebbles
that will clog the nozzle and cause you to have fits. be very sure to wear a
hood and use a respirator.

dave mudge
dave at magichammer.net
http://www.magichammer.net
http://www.metalsmithinghowto.com
 

-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of larbooks at impulse.net
Sent: Wednesday, December 08, 2004 11:55 PM
To: theforge at mailman.qth.net
Subject: [TheForge] Sandblaster

I'd like to make a sandblaster.  Home Depot sells a Husky brand 
suction type setup where the sand is sucked up to the nozzle at the 
hand gun.  But I'd like to make the pressure feed type where the 
sand is sucked into the air stream before the hand gun.  The link 
below shows the type I'd like to make.

http://www.gothos.com/btw/tech1.html#sand

My problem is how this all looks at the outlet end.  I'd like to buy a 
silicon carbide nozzle (Coleman and Campbell-Hausfeld sells them 
for their units) but it seems that the air-sand mixture is going to 
chew things up pretty good before it gets to the nozzle and  I would 
like to know what I need between the end of the hose and the 
nozzle.  Any suggestions would be appreciated.

Norm Larson

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