dust collector question - Scroll Saw Woodworking & Crafts Message Board

shonisko · 01-15-2008, 01:52 PM

I installed some pipe and blast gates to use my shop vac it worked great but loud. I ended up trading something for a delta dust collector, it sucks, no pun intended. but i made a 4 inch circle to fit the hose than reduced it to fit my 2 inch pipe. now it does not work as well when i open a blast gate. It does work though. Any ideas why and a remedy for the problem. Since i have 150.00 bucks into my tubing and traded something for the collector, I hope I can get it to work. please help me out.

Barefoot1 · 01-15-2008, 02:57 PM

Odds are that your shop vac is not pulling the needed CFM to make the system effective. Turns in your piping as well as length will effect that as well as the low volume of air that a shop vac can pull. The new wood magazine had a very interesting article (Shop test) on dust collection systems this month. (Actually it is March 08 - why do they do that????)

shonisko · 01-15-2008, 03:26 PM

The shop vac worked good, it was when i took the dust collector from a 4 inch hose and reduced it down, not it does not work as good as it does without reducing it.

Barefoot1 · 01-15-2008, 03:43 PM

Oh, sorry I see what you are saying. That is simple, 2 inch pipe will not move the volume of air that a 4" will. Very similiar to water hydrolics and friction loss.

shonisko · 01-15-2008, 03:56 PM

so it looks like i am out of luck, i guess plan b is to set up the shop vac for the small quick tools like saw and stuff and use the collector for lathe and sander, dang me and my poor research

Rolf · 01-15-2008, 08:35 PM

Make a muffler for the Shop vack exhaust that should help.

Chase · 01-15-2008, 08:57 PM

Quote:

Originally Posted by Rolf

Make a muffler for the Shop vack exhaust that should help.

I have a Home Depot, 6.5 hp, shop vac I use for dust collection. They have an accessory called a muffler. Will this decrease the efficiency of the shop-vac?

Chase

Janette · 01-15-2008, 09:50 PM

I installed 2" or maybe 3" hoses to the main one with a V connection. One I put above on the scroll saw- the other underneath.

knothead · 01-15-2008, 10:05 PM

I have got a 2 hp collector that makes no noise at all. But then I finally got around to building an enclosure and putting it outside my shop.

Tom

shonisko · 01-15-2008, 11:56 PM

Quote:

Originally Posted by Rolf

Make a muffler for the Shop vack exhaust that should help.

how woud you make one I have a sears shop vac

01-15-2008, 01:52 PM	#1
shonisko Junior Member Join Date: Jan 2007 Posts: 22	dust collector question I installed some pipe and blast gates to use my shop vac it worked great but loud. I ended up trading something for a delta dust collector, it sucks, no pun intended. but i made a 4 inch circle to fit the hose than reduced it to fit my 2 inch pipe. now it does not work as well when i open a blast gate. It does work though. Any ideas why and a remedy for the problem. Since i have 150.00 bucks into my tubing and traded something for the collector, I hope I can get it to work. please help me out.

01-15-2008, 02:57 PM	#2
Barefoot1 Wood Mauler Join Date: Oct 2006 Location: South Jordan Utah Posts: 822	Odds are that your shop vac is not pulling the needed CFM to make the system effective. Turns in your piping as well as length will effect that as well as the low volume of air that a shop vac can pull. The new wood magazine had a very interesting article (Shop test) on dust collection systems this month. (Actually it is March 08 - why do they do that????) __________________ Thomas The Barefoot Scroller ~ Thomas@barefootwoodworks.com www.barefootwoodworks.com

01-15-2008, 03:43 PM	#4
Barefoot1 Wood Mauler Join Date: Oct 2006 Location: South Jordan Utah Posts: 822	Oh, sorry I see what you are saying. That is simple, 2 inch pipe will not move the volume of air that a 4" will. Very similiar to water hydrolics and friction loss. __________________ Thomas The Barefoot Scroller ~ Thomas@barefootwoodworks.com www.barefootwoodworks.com

01-15-2008, 08:35 PM	#6
Rolf Senior Member Join Date: Apr 2005 Location: Bellport, LI New York Posts: 2,808	Make a muffler for the Shop vack exhaust that should help. __________________ Rolf RBI G4 Hawk, Delta SS350 Philosophy "I don't know that I can't, therefore I can"

01-15-2008, 09:50 PM	#8
Janette Intarsia Moderator Join Date: Oct 2006 Location: Eugene, Oregon Posts: 2,108 Blog Entries: 4	I installed 2" or maybe 3" hoses to the main one with a V connection. One I put above on the scroll saw- the other underneath. __________________ Janette www.square-designs.com

01-15-2008, 03:26 PM	#3
shonisko Junior Member Join Date: Jan 2007 Posts: 22	The shop vac worked good, it was when i took the dust collector from a 4 inch hose and reduced it down, not it does not work as good as it does without reducing it.

01-15-2008, 03:56 PM	#5
shonisko Junior Member Join Date: Jan 2007 Posts: 22	so it looks like i am out of luck, i guess plan b is to set up the shop vac for the small quick tools like saw and stuff and use the collector for lathe and sander, dang me and my poor research

01-15-2008, 10:05 PM	#9
knothead Senior Member Join Date: Aug 2003 Location: ARIZONA Posts: 719	I have got a 2 hp collector that makes no noise at all. But then I finally got around to building an enclosure and putting it outside my shop. Tom __________________ Tom ___________________ America will never be destroyed from the outside. If we falter and lose our freedoms, it will be because we destroyed ourselves. Abraham Lincoln

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