LumberJocks

dust collector / separater

  • Advertise with us

« back to Jigs & Fixtures forum

Forum topic by jeffl posted 10-03-2011 02:54 AM 2343 views 0 times favorited 8 replies Add to Favorites Watch
View jeffl's profile

jeffl

288 posts in 1967 days


10-03-2011 02:54 AM

Topic tags/keywords: question dust collection

I decided to build a dust separator for my shop vac . It works pretty good but alot of dust made it through to the filter. I bought a 2.5” hose and some plumbing parts at Lowes. It’s only a 5 gallon bucket. I routed a groove for the gasket and the lid is sucked tight during operation. It picks up small pieces of wood without clogging up which is what I was after. Any thoughts on the dust getting through? Just too shallow?

-- Jeff,


8 replies so far

View degoose's profile

degoose

7014 posts in 2011 days


#1 posted 10-03-2011 04:15 AM

You probably need a baffle to stop the vacuum from sucking in the dust in the bottom of the bin…

-- Drink twice... and don't bother to cut... @ lazylarrywoodworks.com.au For lovers of all things timber...

View jimboy's profile

jimboy

28 posts in 1300 days


#2 posted 10-03-2011 08:24 AM

A larger collection bucket and a 2 or 3 micron filter, you wont stop all the dust getting through

View mafe's profile

mafe

9547 posts in 1746 days


#3 posted 10-06-2011 12:18 PM

I think you need a cyclone to seperate the fine particles also.
The suction will bring the small once no matter what size the bucket is my feeling.
Best thoughts,
Mads

-- Mad F, the fanatical rhykenologist and vintage architect. Democraticwoodworking.

View ajosephg's profile

ajosephg

1854 posts in 2218 days


#4 posted 10-06-2011 01:06 PM

A Thien separator works great. You can make your own for a few bucks. Mine stops everything except sanding dust.

Here is a link to the designer’s site. There is a wealth of info here including details of how to make one.

http://www.cgallery.com/smf/index.php

-- Joe

View ajosephg's profile

ajosephg

1854 posts in 2218 days


#5 posted 10-06-2011 03:47 PM

Jeff: Here’s what a separator looks like. http://lumberjocks.com/projects/54269

-- Joe

View Paul Pomerleau's profile

Paul Pomerleau

283 posts in 1350 days


#6 posted 10-06-2011 04:27 PM

You have the dust going into the bucket right (input), it goes in along the edge to start spinning around the inside and gravity will pull it down. Ensure the open end of the 90 degree elbow is pointing to the side of the bucket to create the tornado.
The problem that I see with yours is the vacuum attachment part (output) should be in the center of the lid where there is little debris, don’t use a 90 degree elbow here.
Picture the tornado effect inside your bucket… the vac (output) should be in the eye of the tornado where there is little debris.
The baffle is only needed to keep the debris calm once it is below the baffle, which would probably be a good idea when using smaller buckets. Without it, once debris is sufficiently high enough in the bucket the vac will start sucking it up.
So, you have the input correct on the side with the 90 degree elbow, the output to the vac should be in the center of the lid using a straight short pipe, no bend.
My center pipe is only ~3” long.
Try it and let us know.

-- Close to Ottawa Ontario Canada

View jeffl's profile

jeffl

288 posts in 1967 days


#7 posted 10-07-2011 10:44 PM

Thanks Guy I doubled the bucket and it works the same so I think I’ll redo this with the vacuum in the center like you said. I just bought a magazine on my way to Lowes that had this setup in a advertisement. Jeff

-- Jeff,

View D_Allen's profile

D_Allen

495 posts in 1441 days


#8 posted 10-11-2011 01:51 AM

Here is mine on a 5 gal bucket, or rather 2 of them end-to-end.
A word of note here: If you use this setup, you will have to make a support ring for the center of the bucket because they will flatten when you restrict the suction.

-- Website is finally up and running....www.woodandwrite.com

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com

Latest Projects | Latest Blog Entries | Latest Forum Topics

GardenTenders.com :: gardening showcase