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another compressor question

updated thu 31 jul 97

 

Robert Speirs, M.D. 12 4450 on mon 21 jul 97


I have been reading the posts on compressors hoping to get my question
answered. No such luck.

I saw a little compressor at Home Depot for about $l00 that had a little
tank and exerted over 80 lbs of pressure. I don't know that this
"Critter" some of you wrote about is, but could it be the same thing?

I will not be spraying a lot of my work - mostly platters too large for
dipping and pieces that need my temperamental bronze glaze. I only need
about 30 lbs of pressure. Do you think I can get away with this
particular type of equipment? Is there some kind of problem with not
getting enough air volume with these things? I know someone who uses
one of those home air stations for filing up tires, but she annot
control the buildup of pressure and has to spray constantly or turn the
machine off, so that is not ideal. Still, I don't want to spend $300 if
I don't have to.

Thanks for your advice.

Laura in Oregon
Where my new studio is STILL not finished, but getting there. My wheel
and kiln arrive this week!

Kenneth D Westfall on tue 22 jul 97

Laura,
How long does it take for you to spray one platter and how much
**volume** of air would be required is the real question when considering
a small air compressor. Of course the psi (pounds per square inch) or
kp(kilopascals) is important, but application problems will more likely
be related to how large( how many cubic feet of air does it hold) the
storage tank (if any) is and how long it will take the compressor to
recover to fill the tank again. In simpler words, if your going to use,
say, 50 cubic feet of air per second, then will the compressor produce
enough air to allow you to spray for one full minute continually? These
are just hypothetical numbers, but I hope you get the point. you can
write me directly if this is not clear.
Tracey Westfall

Kenneth D. Westfall
Pine Hill Pottery
potter-ken@juno.com
Don't get stuck in the mud pies K&T

David Hendley on wed 23 jul 97

Laura,
"Critter" is the name of a spray gun, not a compressor. As for your little
compressor, the other variable besides pressure is volume (how much
pressure for how long). If you don't mind waiting for pressure to build up
again, a small tank can be OK, of course, not waiting is better.
David Hendley
Maydelle, Texas
Using a "homemade" air compressor


At 09:00 AM 7/21/97 EDT, you wrote:
>----------------------------Original message----------------------------
>
> I have been reading the posts on compressors hoping to get my question
> answered. No such luck.
>
> I saw a little compressor at Home Depot for about $l00 that had a little
> tank and exerted over 80 lbs of pressure. I don't know that this
> "Critter" some of you wrote about is, but could it be the same thing?
>
> I will not be spraying a lot of my work - mostly platters too large for
> dipping and pieces that need my temperamental bronze glaze. I only need
> about 30 lbs of pressure. Do you think I can get away with this
> particular type of equipment? Is there some kind of problem with not
> getting enough air volume with these things? I know someone who uses
> one of those home air stations for filing up tires, but she annot
> control the buildup of pressure and has to spray constantly or turn the
> machine off, so that is not ideal. Still, I don't want to spend $300 if
> I don't have to.
>
> Thanks for your advice.
>
> Laura in Oregon
> Where my new studio is STILL not finished, but getting there. My wheel
> and kiln arrive this week!
>
>