I'm thinking about adding a dust collection system to my small shop in
my basement. We just had a baby in May, so I'm concerned about the
extra dust in the house. Has anyone tried the 2-1/2" Clear Hose Dust
Collection Kit from Woodcraft? It's supposedly small enough to be
used with your shop vac. I've got a 6 gallon 3HP Craftsman shopvac,
not sure if that would do it or not. Let me know your opinions!

Thanks!

wrote in message
oups.com...
I'm thinking about adding a dust collection system to my small shop in
my basement. We just had a baby in May, so I'm concerned about the
extra dust in the house. Has anyone tried the 2-1/2" Clear Hose Dust
Collection Kit from Woodcraft? It's supposedly small enough to be
used with your shop vac. I've got a 6 gallon 3HP Craftsman shopvac,
not sure if that would do it or not. Let me know your opinions!

Typically 2.5" hoses are used with big shopvacs to allow bulky things to
pass.
Your Craftsman is not particularly big.

What is you goal here? What are you trying to collect dust from?
Can't really say if it will work or not without knowing what you are trying
to do.

On Oct 11, 2:15 pm, "Toller" wrote:

Typically 2.5" hoses are used with big shopvacs to allow bulky things to
pass.
Your Craftsman is not particularly big.

What is you goal here? What are you trying to collect dust from?
Can't really say if it will work or not without knowing what you are trying
to do.

I was planning on routing the collection system to my bandsaw, chop
saw, drill press (all three have 2 1/2 " dust ports) and to my lathe
(a gate at each machine), to pick up dust when I sand. I'd like to
eventually route it to my table saw, but I figure this system probably
won't be powerful enough with the shop vac.

Yeah, the capacity of the shop vac isn't large at all, 6 gallons, but
I figured it probably has enough power, being that it's 3HP - but I
really wouldn't know until I tried it.

wrote in message
ups.com...
On Oct 11, 2:15 pm, "Toller" wrote:

Typically 2.5" hoses are used with big shopvacs to allow bulky things to
pass.
Your Craftsman is not particularly big.

What is you goal here? What are you trying to collect dust from?
Can't really say if it will work or not without knowing what you are
trying
to do.

I was planning on routing the collection system to my bandsaw, chop
saw, drill press (all three have 2 1/2 " dust ports) and to my lathe
(a gate at each machine), to pick up dust when I sand. I'd like to
eventually route it to my table saw, but I figure this system probably
won't be powerful enough with the shop vac.

Yeah, the capacity of the shop vac isn't large at all, 6 gallons, but
I figured it probably has enough power, being that it's 3HP - but I
really wouldn't know until I tried it.

My 2hp DC gets maybe half the debris from those tools; a shopvac would be
almost useless.
And I doubt 2.5" hoses would be any more effective than 1.25" hoses, as the
quantity of dust isn't large.

wrote:

I was planning on routing the collection system to my bandsaw, chop
saw, drill press (all three have 2 1/2 " dust ports) and to my lathe
(a gate at each machine), to pick up dust when I sand. I'd like to
eventually route it to my table saw, but I figure this system probably
won't be powerful enough with the shop vac.

Yeah, the capacity of the shop vac isn't large at all, 6 gallons, but
I figured it probably has enough power, being that it's 3HP - but I
really wouldn't know until I tried it.


All of the machines you've listed would require a higher volume of air
flow than the shopvac can generate to be effective. A true 3 HP motor
would draw about 50 amps at 110V.

--
Jack Novak
Buffalo, NY - USA

On Thu, 11 Oct 2007 10:49:16 -0700, "
wrote:

I'm thinking about adding a dust collection system to my small shop in
my basement. We just had a baby in May, so I'm concerned about the
extra dust in the house. Has anyone tried the 2-1/2" Clear Hose Dust
Collection Kit from Woodcraft? It's supposedly small enough to be
used with your shop vac. I've got a 6 gallon 3HP Craftsman shopvac,
not sure if that would do it or not. Let me know your opinions!

Thanks!

I think that before you invest in the 2 1/2" stuff, you should consider either a
portable DC or a real one, using4" hose..

Most of us have "been there, done that" and found that we should have spent our
money on a real system..

Even the Harbor Freight 2hp DC will be much more effective and easier to use,
and it's usually on sale for around $160 plus maybe $30 for a started kit with
hoses and such..

I use one almost every day and it does the job for me..


mac

Please remove splinters before emailing

On Oct 11, 4:14 pm, mac davis wrote:
On Thu, 11 Oct 2007 10:49:16 -0700, "
wrote:

I'm thinking about adding a dust collection system to my small shop in
my basement. We just had a baby in May, so I'm concerned about the
extra dust in the house. Has anyone tried the 2-1/2" Clear Hose Dust
Collection Kit from Woodcraft? It's supposedly small enough to be
used with your shop vac. I've got a 6 gallon 3HP Craftsman shopvac,
not sure if that would do it or not. Let me know your opinions!

Thanks!

I think that before you invest in the 2 1/2" stuff, you should consider either a
portable DC or a real one, using4" hose..

Most of us have "been there, done that" and found that we should have spent our
money on a real system..

Even the Harbor Freight 2hp DC will be much more effective and easier to use,
and it's usually on sale for around $160 plus maybe $30 for a started kit with
hoses and such..

I use one almost every day and it does the job for me..

mac

Please remove splinters before emailing

Thanks for all the information. It's good to know what you're getting
yourself into before you actually get yourself into it.

-S

On Thu, 11 Oct 2007 20:42:01 +0000, Nova wrote:

All of the machines you've listed would require a higher volume of air
flow than the shopvac can generate to be effective. A true 3 HP motor
would draw about 50 amps at 110V.

While I'd be he first to admit that HP ratings are usually bogus, I can't
see 5500 watts being required for 3 HP. With no power factor loss, one HP
is about 750 watts. That'd be 2250 watts for 3 HP. In real life, I'd
guess 3300 watts or so for 50 HP. That's about 30 amps.

Anyone have more info on actual average power factors?

Larry Blanchard wrote:
On Thu, 11 Oct 2007 20:42:01 +0000, Nova wrote:


All of the machines you've listed would require a higher volume of air
flow than the shopvac can generate to be effective. A true 3 HP motor
would draw about 50 amps at 110V.


While I'd be he first to admit that HP ratings are usually bogus, I can't
see 5500 watts being required for 3 HP. With no power factor loss, one HP
is about 750 watts. That'd be 2250 watts for 3 HP. In real life, I'd
guess 3300 watts or so for 50 HP. That's about 30 amps.

Anyone have more info on actual average power factors?


Formula for a single phase motor:

HP = (E x I x Efficiency x Listed power factor)/746



Motor efficiency ratings can vary greatly. I'd expect the motor used on
a shop vac to be on the low end on the scale.

Common power factor ratings range from .70 to .98

See:
http://www.bacharach-training.com/norm/electric.htm

Or a web site to that estimates the values (I have no clue what %
efficiency and power factor they use):

http://www.shipcopumps.com/MathWizar...oramperage.asp

Example:

3 HP motor at 115V

Estimated Full Load Current
34A (amps)

Minimum Copper Wire Size
(75°C) THW, THHN-THWN, XHHW
8 Gauge

Magnetic Breaker Trip Rating
70A (amps)

Fused Disconnect
50A (amps)

At 110V the current would be higher than at 115V.

Even at 230V the start up current for a single phase 3 HP motor would be
in the area of 52 amps. The locked rotor current would be about 70 amps.

--
Jack Novak
Buffalo, NY - USA

Can anyone suggest a dust collection system on a budget for the
following machines:

The following with 2 1/2" dust ports on-board:
Drill Press
Band Saw

Less than 2 1/2" dust port:
Chop Saw

No dust port:
Lathe
Table Saw

I was thinking of starting with the portal dust collector advertised
at Harbor Freight.
http://www.harborfreight.com/cpi/cta...emnumber=94029

Not sure of a cost effective place to get the duct work etc is..
suggestions?

wrote in message
oups.com...
Can anyone suggest a dust collection system on a budget for the
following machines:

The following with 2 1/2" dust ports on-board:
Drill Press
Band Saw

A shopvac will actually work reasonably well with these. The dust is large
(drill) or directed down (bandsaw). But they are not serious problems
anyhow; I don't bother with my drill press, it is easier to vacuum the
debris up afterwards.

Less than 2 1/2" dust port:
Chop Saw

No dust port:
Lathe

Nothing short of a 2hp DC will work on these. There is a lot of dust and it
is sprayed all over. Sorry, but no cheap way out. The 6a unit you refer to
below won't be much better than a shop vac.

Table Saw

Unless you put an overhead guard on it, nothing works on a table saw. There
just isn't enough air movement through the table insert to catch the dust
thrown out.

"Larry Blanchard" wrote in message
news
On Thu, 11 Oct 2007 20:42:01 +0000, Nova wrote:

All of the machines you've listed would require a higher volume of air
flow than the shopvac can generate to be effective. A true 3 HP motor
would draw about 50 amps at 110V.

While I'd be he first to admit that HP ratings are usually bogus, I can't
see 5500 watts being required for 3 HP. With no power factor loss, one HP
is about 750 watts. That'd be 2250 watts for 3 HP. In real life, I'd
guess 3300 watts or so for 50 HP. That's about 30 amps.

Motors usually run about 1200w/hp. Some motors are more efficient, some
less.
Now that is when they are heavily used; a saw motor uses much less when it
is not cutting.

In article .com,
" wrote:

I'm thinking about adding a dust collection system to my small shop in
my basement. We just had a baby in May, so I'm concerned about the
extra dust in the house. Has anyone tried the 2-1/2" Clear Hose Dust
Collection Kit from Woodcraft? It's supposedly small enough to be
used with your shop vac. I've got a 6 gallon 3HP Craftsman shopvac,
not sure if that would do it or not. Let me know your opinions!

Thanks!

One of my rules is, wood dust is your enemy. So, I have both a 4"
portable DC (that I move from machine to machine) -and- an air-filter (I
also have as face-mask, that I use for sanding and other really dusty
work)

--
--------------------------------------------------------
Personal e-mail is the n7bsn but at amsat.org
This posting address is a spam-trap and seldom read
RV and Camping FAQ can be found at
http://www.ralphandellen.us/rv

On Oct 11, 1:49 pm, " wrote:
I'm thinking about adding a dust collection system to my small shop in
my basement. We just had a baby in May, so I'm concerned about the
extra dust in the house. Has anyone tried the 2-1/2" Clear Hose Dust
Collection Kit from Woodcraft? It's supposedly small enough to be
used with your shop vac. I've got a 6 gallon 3HP Craftsman shopvac,
not sure if that would do it or not. Let me know your opinions!

Thanks!

With a small baby in the house I would:

1. Move my shop outside of the house or
2. Discontinue woodworking altogether for a few years or
3. Spend some serious cash for a first-rate system, including an
overhead unit for the really fine stuff.

It's not worth taking a chance on causing a life-long breathing
condition for your child. BTW... congratulations!

Cheers!
harry

On Thu, 11 Oct 2007 18:53:24 -0700, "
wrote:

Can anyone suggest a dust collection system on a budget for the
following machines:

The following with 2 1/2" dust ports on-board:
Drill Press
Band Saw

Less than 2 1/2" dust port:
Chop Saw

No dust port:
Lathe
Table Saw

I was thinking of starting with the portal dust collector advertised
at Harbor Freight.
http://www.harborfreight.com/cpi/cta...emnumber=94029

Not sure of a cost effective place to get the duct work etc is..
suggestions?


I really don't think that unit will do what you need...
I'd suggest spending the extra $50 or $60 and get their 2hp unit..

I use one with a shop-made cyclone type separator and a muffler from Penn State
Ind. and it works for me..
I'd only get the 1 hp unit if space was at a very high premium.. It's your
lungs..

I also use a ceiling air filter and a large box fan blowing out a window.. beats
the hell out of dusting and vacuuming the shop all of the time..


mac

Please remove splinters before emailing