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jonhfry
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PostPosted: Sat May 12, 2007 3:04 am 
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Cocobolo
Cocobolo

Joined: Sun Jan 28, 2007 4:43 am
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Location: United States

I know this has been discussed, but i wanted some advice pertaining to my specific workspace.


I have a work space that is a large 2 car garage, and I use about half of it, so it is open and there is lots of room. I am seriously looking at grizzly's stuff. I am going to get the 18 inch open ended grizzly sander and a 6" jointer. Later this year I will also upgrade to the 17" band saw. Ultimately by fall that will be the majority of my larger tools. I have a 10" bandsaw now, table saw, 2 routers and hand sanders, etc....


I want to get a good dust collector first with the sander. I was thinking about the grizzly 3hp 2 tank system. Will that get the fine dust particles well enough with an upgraded filter? Or, should I consider a cyclone, and if the cyclone collector is recommended what hp would be recommended. I am willing to get or put wheels on it and move from statiion to station.


Thanks
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crazymanmichael
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PostPosted: Sat May 12, 2007 3:33 am 
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Brazilian Rosewood
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before you make any decisions i would strongly recommend you read bill pentz's dust collection site, at least as an absolute minimum the parts on sizing collectors and ducts.

with a cyclone it is too cumbersum to move around, but they are by far the better collectors, keeping the filters much cleaner for longer and the dust collection more unimpeded. if you have the room they are by far the better choice. if the colector is going to be in the same room with you you want the finest filters you can get, and air cleaners as well.

grizzly has a good shop planner so lay out your spece and plan your ducting to suit.



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jonhfry
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PostPosted: Sat May 12, 2007 3:44 am 
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Cocobolo
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So what horsepower should i consider if i choose the cyclone?
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Pwoolson
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PostPosted: Sat May 12, 2007 3:55 am 
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Brazilian Rosewood
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Get the biggest you can afford. With cyclones, the impeller is the important factor in moving the air. Get a 14" at the minimum and then the most horse power you can afford on top of that. The nice thing about cyclones is that you can stick them in a corner and pretty much ignore them until the collection basket is full. Just run 6" sewer drain pipe for your main runs and lower down flex hose if you need it to be somewhat flexible.


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Doug O
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PostPosted: Sun May 13, 2007 2:37 am 
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Consider building a space outside your garage for the dust collection.  I built what is essentially a lean-to attached to my garage and put the dust collector and air compressor out there.  This cuts way down on the ambient noise in your work area, eliminates the need for more sophisticated filtering on you DC unit and creates more space in the shop.  BTW I have a 3hp, 2 bag collector from Sunhill.  At the time it had by far the best specs for the money.
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BOBP
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PostPosted: Sun May 13, 2007 2:40 am 
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I agree with getting a cyclone I recently bought a 3hp Penn State cyclone it needs a 6" duct as a main and that is very large for a medium size shop. It has 1/2 micron sized canister filters which is very good for the lungs the down side is it takes up 3'x4'x8' space.
I would choose thier 2 hp size if I were to do it again because the 3hp unit is overkill in my 34x23 shop.The 3hp unit is rated at 76db but moving that much air makes quite a racket (think small jet).
Penn State is a great company to deal with and they tried to tell me the 2hp was better for my need but I'm a bigger must be better type of guy hope this helps
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crazymanmichael
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PostPosted: Sun May 13, 2007 5:41 am 
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Brazilian Rosewood
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if you bother to read the research on dust collection at bill pentz's site, the duct size required is not primarily related to the size of the shop, but rather to the air volume/velocity required to entrain the fine dust matter at the machine and transport it through the cyclone to the filter. a 6" pipe is stated to be the minimum required at table saws, thickness sanders, etc.

if the shop is large, then the length of run can increase the impeller/motor size and the duct size required, but the minimums are established by the air volume/velocity need to capture the dust at the source.


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PaulB
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PostPosted: Sun May 13, 2007 11:12 am 
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Koa
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That's what I'm planning on doing, build a closet and keep the DC and compressor in there, make it as sound proof as possible.

I was thinking of doing what Doug suggested, put them outside in a small shed. But then you'd be sucking all the humidity/temperature controlled environment out of your shop. Or do you just port the exhaust from the DC back into the shop?

I guess I better get over to bill pentz's site and read up.
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Doug O
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PostPosted: Sun May 13, 2007 3:17 pm 
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Cocobolo
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Drawing air from my shop space with the DC is not a problem.  My shop is 450 sf and reasonably well insulated.  Except for a 2 or 3 months in the winter I usually have the door open when in the shop because it gets too hot.  All of my machines are on automatic switches that start and stop the DC so it only runs when a machine is on.
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