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HF dust collector mod????

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Forum topic by Blake Haskins posted 12-02-2016 08:24 PM 972 views 0 times favorited 17 replies Add to Favorites Watch
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Blake Haskins

217 posts in 1078 days


12-02-2016 08:24 PM

Topic tags/keywords: jig tip question

I am located in 2 car garage, so space is quite limited i have been thinking about trying to incorporate some dust collection, however i do not want to be tripping over hoses (garage door keeps me from ceiling mount) i want to incorporate a dust collector into as small as a cart as possible(of which i will place a stationary sander or 2), if i can figure out how to go through with this then nearly all the tools in my shop will have dust collection.

- Originally i was thinking about making a negative space under the cart to mount the rockler wall-mount unit to, however it is 4 feet high, and that is higher then desired.

- now im thinking about modifying the harbor freight one which is 3x CFM, however because i am no expert on Dust collectors I would like to know if i have the exhaust of the HF dust collector running into the bag with which it came, would that be acceptable?? I mean isnt that basically what the rockler does??

-- make sure you subscribe to my channel- https://www.youtube.com/channel/UCRuWi7P7eIcNOckoxBI-ZRA


17 replies so far

View WhyMe's profile

WhyMe

910 posts in 1401 days


#1 posted 12-02-2016 08:42 PM

So you are going to ditch the cyclone separation on the HF and just use the filter bag directly as a collection bag? You can do that but it will shorten the time before the filter bag becomes clogged and will reduce the CFM’s quickly.

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Blake Haskins

217 posts in 1078 days


#2 posted 12-02-2016 10:46 PM



So you are going to ditch the cyclone separation on the HF and just use the filter bag directly as a collection bag? You can do that but it will shorten the time before the filter bag becomes clogged and will reduce the CFM s quickly.

- WhyMe


yes, that was my intention. would the bag as big as it is allow me to just get it about half or two thirds the way through before a noticeable drop in cfm? why doesn’t the rockler one suffer from this?

-- make sure you subscribe to my channel- https://www.youtube.com/channel/UCRuWi7P7eIcNOckoxBI-ZRA

View JBrow's profile

JBrow

1276 posts in 760 days


#3 posted 12-04-2016 02:39 AM

haskins,

I agree with WhyMe. As a dual duty dust collection bag fills, the volume of air pulled from a tool will be reduced. The maximum volume of air will be pulled from the tool when air is free to escape from the empty bag. This contrasts with a dust collection/filter bag that is half full of debris. Debris in the bag will block half the air from escaping the bag. Since air cannot escape the bag, less air is pulled into the dust collector at the tool. This holds for any dust collection system where the filter bags is also the dust and debris collection container.

Therefore a Harbor Freight dust collector set up with a debris bag on the bottom and a filter bag on top will offer greater air flow over a longer period of time than the Rockler single bag unit.

I looked at your workshop and the YouTube video of your shop. My impression is that the workshop has evolved over time as new tools were added. I suspect that some time spent reorganizing the shop could result in tools to which the dust collector would be connected being grouped together. Then, if the dust collector were parked nearby, a flex hose could be moved from one tool to another and thus avoid dust collection hoses all over the floor of the shop.

If you are interested, I too work in a 2 car garage dedicated as a workshop. A diagram of my shop layout is found on my Workshop page. Even though the tools you have differ from mine, it may give you some ideas should you elect to reorganize your shop. There may be other LJ workshop pages that could also provide some good organizing ideas.

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WhyMe

910 posts in 1401 days


#4 posted 12-04-2016 07:32 PM


So you are going to ditch the cyclone separation on the HF and just use the filter bag directly as a collection bag? You can do that but it will shorten the time before the filter bag becomes clogged and will reduce the CFM s quickly.

- WhyMe

yes, that was my intention. would the bag as big as it is allow me to just get it about half or two thirds the way through before a noticeable drop in cfm? why doesn t the rockler one suffer from this?

- haskins

The Rockler one will suffer as the bag fills. I guess on a scale of economy you can turn the cheaper HF dust collector into the same style as the Rockler dust collector, but the modified HF one may be better because of the increased size of blower and bag. This is all a guess on my part IF the HF does move more air..

View Bill White's profile

Bill White

4808 posts in 3800 days


#5 posted 12-04-2016 07:51 PM

OK! Stupid as I might be, I put good bags from Highland Woodworking on my HF collector. They are felted bags, I empty them when needed, don’t have to fool with all the ducting stuff ‘cause I move the tube from tool to tool.
I often feel that the excess “stuff” used in collecting is needless.
My shop is 20’ X 20’, has TS, miter saw, band saw, and lathe. I DO clean as needed, am not a nut about the dust issue.
I don’t minimize the need for collection, but how far does one need to go? The ambient DC does a great job and, when stuff gets out of hand, the compressor and leaf blower works.
73 years old, and I have not died yet from dust crap.
Does that make me a minimalist?
Bill

-- bill@magraphics.us

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Redoak49

2906 posts in 1829 days


#6 posted 12-04-2016 08:52 PM

It seems to each their own on dust collection…..and that is fine.

My view on dust collection is that the older I get the better I want dust collection. As you age, your lung capacity decreases and are more prone to breathing problems. I want to do woodworking for as long as possible and do not want breathing issues to stop me.

But, if you can see dust hanging in the air or fine dust on surfaces, that is not good. I have heard the same thing many times. I have been breathing dust all my life and no problems…...Good Luck

View CharlesA's profile

CharlesA

3294 posts in 1638 days


#7 posted 12-04-2016 10:00 PM

This may not be the case for everyone, but I got more space this way with the HF:

Put it in the extreme corner of the workshop, mounted to the wall. I have a Thien separator, and then vent outside. I built a duct system with PVC, so I don’t need space for the regular bag setup. Because it sits in the far, back corner and I don’t have to push it around the shop, this setup gives me more usable floor space.

-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson

View woodbutcherbynight's profile

woodbutcherbynight

3650 posts in 2249 days


#8 posted 12-05-2016 04:49 AM

If it is possible you could locate the central unit outside and make a surround for it. In my case when I added to the shop I made extra storage space for this purpose. This keeps the unit out of the shop, easy to get to when time to empty bag or work on, and keeps this bulky noisy thing out of the shop. You need power and a 4 inch hole in the wall to make your connection. Mine has been in operation since 2003 never had to do anything except empty the bag or the chip bin.

-- Live to tell the stories, they sound better that way.

View Blake Haskins 's profile

Blake Haskins

217 posts in 1078 days


#9 posted 12-05-2016 04:27 PM


This may not be the case for everyone, but I got more space this way with the HF:

Put it in the extreme corner of the workshop, mounted to the wall. I have a Thien separator, and then vent outside. I built a duct system with PVC, so I don t need space for the regular bag setup. Because it sits in the far, back corner and I don t have to push it around the shop, this setup gives me more usable floor space.

- CharlesA

I very much like this idea as it would keep me from having to deal with a separator and bag. The outside of the garage is brick, how would i create a 4 inch whole in it? could i pipe it up from a sanding station, therefore have it blow the dust up pvc about 6 feet and then about 10 feet horizontal till it exits the shop?

-- make sure you subscribe to my channel- https://www.youtube.com/channel/UCRuWi7P7eIcNOckoxBI-ZRA

View Blake Haskins 's profile

Blake Haskins

217 posts in 1078 days


#10 posted 12-05-2016 04:30 PM


If it is possible you could locate the central unit outside and make a surround for it. In my case when I added to the shop I made extra storage space for this purpose. This keeps the unit out of the shop, easy to get to when time to empty bag or work on, and keeps this bulky noisy thing out of the shop. You need power and a 4 inch hole in the wall to make your connection. Mine has been in operation since 2003 never had to do anything except empty the bag or the chip bin.

- woodbutcherbynight


having the impelar outside sucking from the inside would be OK if i didn’t have to have drops to each machine (the garage door prohibits that.) , however i think i like the idea of having the impelir in the same spot but pipe it out.

-- make sure you subscribe to my channel- https://www.youtube.com/channel/UCRuWi7P7eIcNOckoxBI-ZRA

View myxology's profile

myxology

55 posts in 1080 days


#11 posted 12-06-2016 11:42 PM

haskins,

I have put my table saw and workbench (or more properly, assembly table) which also functions as my outfeed table, in the middle of my 2 car garage. I am with you on not wanting cables and hoses on the floor, so this is the solution I came up with. I also put my jointer next to the table and the saw maximizing the unused area around the tools and table. I attached a “services” post to the ceiling and to the leg of the table and ran my dust collection and power over the top. It’s working out great! More photos are in my Workshop area.

My future plan is to run real power the correct way, with conduit, later. I am also going to be moving my DC unit outside and intend to build a shed to cover it. If you take a close look you can see how close I got it to my garage door so as to not interfere with it opening but still serving the purpose I need. I am now running my jointer and table saw into the DC from the middle of the floor, along with a long 2” flex hose that I can clean the table with. Future plans also include overarm dust collection on the table saw and possibly building in a down draft table into the assembly table.

I also built a small table (which is going to get rebuilt really soon) right above the right hand side of the table saw to put things like push sticks, ear protection, micro jig, etc. I love not having to move all that crap any time I want to slide the fence over.









Hope this idea helps or gives you another idea.

View myxology's profile

myxology

55 posts in 1080 days


#12 posted 12-06-2016 11:54 PM

haskins,

I have put my table saw and workbench (or more properly, assembly table) which also functions as my outfeed table, in the middle of my 2 car garage. I am with you on not wanting cables and hoses on the floor, so this is the solution I came up with. I also put my jointer next to the table and the saw maximizing the unused area around the tools and table. I attached a “services” post to the ceiling and to the leg of the table and ran my dust collection and power over the top. It’s working out great! If you take a look at the photos in My Workshop you can see how close I got it to my garage door so as to not interfere with it opening but still serving the purpose I need.

My future plan is to run power the correct way, with conduit to serve the power needs of the jointer, table saw, and other power outlets. I am also going to be moving my DC unit outside and intend to build a shed to cover it. I am now running my jointer and table saw into the DC from the middle of the floor, along with a long 2” flex hose that I can clean the table with or connect other mobile tools that use the 2” fitting. Future plans also include overarm dust collection on the table saw and possibly building in a down draft table into the assembly table.

I also built a small table (which is going to get rebuilt really soon) right above the right hand side of the table saw to put things like push sticks, ear protection, micro jig, etc. I love not having to move all that crap any time I want to slide the fence over.

!If you take a close look you can see how close I got it to my garage door so as to not interfere with it opening but still serving the purpose I need. !

Hope this idea helps or gives you another idea.

View myxology's profile

myxology

55 posts in 1080 days


#13 posted 12-06-2016 11:55 PM

hey peeps… sorry for the double post and confusion… I can’t seem to get the site to work for me today for some reason. haskins, there are other pics in My Workshop if this idea will help. Best of luck to you.

View AshTheArtist's profile

AshTheArtist

28 posts in 376 days


#14 posted 12-07-2016 01:03 AM

I have mounted mine on wall as well as the 3 metal rods it comes with (upside down, screwed in ceiling) holding the separator. Since I have 2 stage filteration (thein style), My plastic bag is less than half the original size (it barely gathers any dust/chips) which hangs may be like 15-18 inches from green separator.

-- Ash @ touchwoodarts

View Blake Haskins 's profile

Blake Haskins

217 posts in 1078 days


#15 posted 12-07-2016 05:37 PM



hey peeps… sorry for the double post and confusion… I can t seem to get the site to work for me today for some reason. haskins, there are other pics in My Workshop if this idea will help. Best of luck to you.

- myxology

Im thinking that i will just pump it straight out the eave of my attic roof, and in that case all i need is the motor and none of the bags is there anyway i can buy the fan and motor assembly seperate to save some money?

-- make sure you subscribe to my channel- https://www.youtube.com/channel/UCRuWi7P7eIcNOckoxBI-ZRA

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