On Thu, 28 Apr 1994, Jody Levine wrote:
> I've seen an attachment that has rubber pipe on the end that you put
> right up against the object to be blasted. This contains the sand (recycling
> it, so you have to dump it out once in a while to get sharp stuff in) and
> is quite slow, but does not make a mess. I have no idea what type of
I have a recycling spot blaster. I bought a model that was the most
expensive and elaborate one I could find, expecting its performance to be
proportional to its price. It works very poorly with sand, a bit better
with expensive aluminum oxide. When it works, it blasts a circle about
the size of a quarter, so one would go nuts doing a whole firewall with
it. I hoped it would work on those little nicks that get out of hand and
turn into quarter-sized rust spots. If they are in the middle of a flat
panel, it almost works, but invariably, you want to sandblast something
(like the edge of a door) that none of the nozzles fits well, then you
lose expensive media and make a mess. I plan to give mine another try
before I consign it to the bin full of great tools that didn't work, but I
am not sanguine about it. I know of a couple of different models and
suppliers if anyone wants to experiment.
Ray Gibbons Dept. of Molecular Physiology & Biophysics
Univ. of Vermont College of Medicine, Burlington, VT
gibbons@northpole.med.uvm.edu (802) 656-8910
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