OT Resizing a Dust Collector Pre-separator
 

Hello,

I'm looking for some feedback on what parts size changes would be needed
when building the following Woodcraft DIY dust collector pre-separator,
which is based upon using a 44 gallon container. If, due to "shop" space
limitations, I choose to use a 32 gallon or smaller container, is it just a
matter of reducing the sizes based upon the ratio?

http://woodcraft.com/articles.aspx?articleid=408

That said, I came up with the following approximate sizes. Using a 32 gallon
container the pipe size would change to 2 3/16", the couplings to 1 7/8" and
the inlet pipe to 7 1/4". Again, these are just ballpark numbers. I don't
even know if PVC fittings are available in those sizes.

If I'm on the right track, then I assume that the same would apply if making
one from a 5 gallon bucket as well. Is that true?

I realize that we're not talking about rocket science here and am just
trying to learn.

Thanks in advance to those who post a reply to the group.

Peter.

OT Resizing a Dust Collector Pre-separator
 

"Peter Bogiatzidis" wrote in
. net:

Hello,

I'm looking for some feedback on what parts size changes would be
needed when building the following Woodcraft DIY dust collector
pre-separator, which is based upon using a 44 gallon container. If,
due to "shop" space limitations, I choose to use a 32 gallon or
smaller container, is it just a matter of reducing the sizes based
upon the ratio?

http://woodcraft.com/articles.aspx?articleid=408

That said, I came up with the following approximate sizes. Using a 32
gallon container the pipe size would change to 2 3/16", the couplings
to 1 7/8" and the inlet pipe to 7 1/4". Again, these are just ballpark
numbers. I don't even know if PVC fittings are available in those
sizes.

If I'm on the right track, then I assume that the same would apply if
making one from a 5 gallon bucket as well. Is that true?

I realize that we're not talking about rocket science here and am just
trying to learn.

Thanks in advance to those who post a reply to the group.

Peter.




It's a drop box for the chunks and chips. Use the piping, hose and
fittings you have, and see if it works. These things can be
overengineered for a home shop.

You're still going to need a broom.

Patriarch

OT Resizing a Dust Collector Pre-separator
 

On Mon, 24 Jul 2006 10:56:54 -0500, Patriarch wrote:

"Peter Bogiatzidis" wrote in
.net:

Hello,

I'm looking for some feedback on what parts size changes would be
needed when building the following Woodcraft DIY dust collector
pre-separator, which is based upon using a 44 gallon container. If,
due to "shop" space limitations, I choose to use a 32 gallon or
smaller container, is it just a matter of reducing the sizes based
upon the ratio?

http://woodcraft.com/articles.aspx?articleid=408

That said, I came up with the following approximate sizes. Using a 32
gallon container the pipe size would change to 2 3/16", the couplings
to 1 7/8" and the inlet pipe to 7 1/4". Again, these are just ballpark
numbers. I don't even know if PVC fittings are available in those
sizes.

If I'm on the right track, then I assume that the same would apply if
making one from a 5 gallon bucket as well. Is that true?

I realize that we're not talking about rocket science here and am just
trying to learn.

Thanks in advance to those who post a reply to the group.

Peter.




It's a drop box for the chunks and chips. Use the piping, hose and
fittings you have, and see if it works. These things can be
overengineered for a home shop.

You're still going to need a broom.

Patriarch

What he said.

It's a chip collector. The diameter doesn't change between the two sizes or the lid won't fit. The
overall height changes, so you won't be able to hold as many chips or as much dust in the smaller
can before it starts to re-entrain and pass over to the dust collector itself. Looking at the
picture, about the only thing you MAY want to do would be shorten the vortex tube. I'd run it a
while before I did that if it was me.

For a 5 gallon bucket, try a shop vacuum, not a dust collector. I think it likely that the 5 gallon
bucket has way too little volume for a dust collector. You'd be re-entraining the dust very
quickly. Shop vacuums are higher pressure but lower volume devices, and probably would work better
for a 5 gallon bucket.

Pick a smooth wall, rigid trash can and aim the inlet flow to be tangential to the wall as close as
you can to get better air/particle separation.

Good luck. Let us know how it works.

Regards,
Roy

Regards,
Roy