Think this D/C solution will work?

  • Advertise with us

« back to Power Tools, Hardware and Accessories forum

Forum topic by CrazeeTxn posted 01-25-2013 09:36 AM 1740 views 0 times favorited 13 replies Add to Favorites Watch
View CrazeeTxn's profile


151 posts in 2221 days

01-25-2013 09:36 AM

Hello all -

First post here…always seem to get pointed to here from google so I figure I might as well join up :)

Just scored a used Jet DC-1100 and some ducting. I’ve been using a dust deputy for a few years and enjoy it. This is my first real d/c though and I know that I need to ditch the 30m bags and get me a Wynn filter. I also know that I want separation before the d/c so I’ve been spending the last few days searching Thien’s baffle or a cyclone (oneida and clear-vue).

I decided on the Oneida Super Dust Deputy as it’s cheaper for the cone than a clear-vue cone and I’m impressed with their DD.

Nothing against the Thien, and from everything I’ve seen, it’s a great set-up for shop-vacs even though I’ve seen some use it for larger units. It’s just that I don’t want to not have it dialed in just right and end up reducing the effectiveness of a $100+ filter.

I’ll it’s going to be stationary in the back, with a 4” run coming out of it. Mainly to the t/s, but also the b/s, miter saw and jointer. I can roll that and the planer to another drop.

So what’s ya’ll’s opinion?

Thanks in advance,


13 replies so far

View HorizontalMike's profile


7770 posts in 3185 days

#1 posted 01-25-2013 11:42 AM

”...Nothing against the Thien, and from everything I’ve seen, it’s a great set-up for shop-vacs even though I’ve seen some use it for larger units. It’s just that I don’t want to not have it dialed in just right and end up reducing the effectiveness of a $100+ filter....”

Not sure I understand what you are trying to say here. I have run my HF 2hp DC system with a bag for almost 3-years and in the last month I finally upgraded to a Wynn Environmental 1-micron filter. It NOW moves much MORE air than it did in the past and I have been running a DIY Thien Lid-type separator for all of those 3-years. Well worth building one. It takes the load off of the DC bag by reducing the amount of sawdust even getting to the DC. Another PLUS is that the Thien trashcan separator is much easier to empty than the bag and that alone saves time when you are generating a lot of chips running the jointer or planer.

-- HorizontalMike -- "Woodpeckers understand..."

View CrazeeTxn's profile


151 posts in 2221 days

#2 posted 01-25-2013 01:40 PM

Mike -

I’ve seen alot of folks using the Thien for shop vacs. The only few I’ve seen using a Thien on an actual d/c said they played with the design (distance from side of can to baffle, etc.) and still couldn’t get it just right as some dust and debris made it to the filter. I know some fines will get in there, but nothings sure fire.

If I’m going to pay that kind of money for a filter, I want to keep it as clean as possible :)

View LoydMoore's profile


105 posts in 2227 days

#3 posted 01-25-2013 02:03 PM

I also have the HF DC and a Thien style seperator built on a 30 gal Tuffy trashcan. I’ve dumped the trashcan weekly for two years and there is about a double handful of dust in the bottom of the collector bag.

-- Loyd, San Angelo, TX

View brtech's profile


1056 posts in 3193 days

#4 posted 01-25-2013 03:20 PM

There are a couple of interacting things going on here. We’re confusing efficiency of separation with efficiency of dust collection.

The Wynn cartridge improves both – catches finer dust, and it improves air flow.

The Thein does a really good job of separating the bigger chips and particles from the air stream. Most of the comments I’ve read from folks who built it according to the plans report it does great job at separating.

What has not been studied as well is the impact of the baffle on the airstream = CFM and suction. We know that a well designed Cyclone does not have a big impact on CFM. There are anecdotal reports that a Thein baffle doesn’t affect it much, but I haven’t seen anyone actually measure.

The SDD isn’t usually considered a well designed Cyclone (too small I think). It DOES seem to be a pretty efficient separator. Again, I don’t recall anyone measuring its effect on the air flow.

I don’t think there is a consensus that either SDD or Thein is much better or worse than the other. They seem to be in the same league.

The thing is, separation efficiency is mostly a convenience – it makes it easy to take out the trash and cuts down on how often you have to clean the filter. There are always some concerns about improving the life of the impeller by avoiding sending chips through it, but I’ve never heard anyone report they needed to replace an impeller when a stream of chips broke it or wore it away.

Air stream efficiency is a health thing – more CFM gets more fines out of the air and into the filter. Much more important.

Get the Wynn – it’s good all around. If you want to make your life easier, I think SDD vs Thein is mostly a build vs buy decision.

View toolie's profile


2151 posts in 2899 days

#5 posted 01-25-2013 06:37 PM

Just scored a used Jet DC-1100 and some ducting.

jet DC? what jet DC? i haven’t seen any pics of a DC or ducting. has anyone else? no pics, didn’t happen.

-- there's a solution to every just have to be willing to find it.

View CrazeeTxn's profile


151 posts in 2221 days

#6 posted 01-25-2013 07:10 PM

Well, being the new kid on the block, I wasn’t going to jump right on in and brag…but, since you asked :)

It’s a 1 1/2 hp, about 8 yrs old, and came with about 25’ of duct work and some blast gates and y’s…oh yeah, and it was only $145!

View Dallas's profile


3599 posts in 2758 days

#7 posted 01-25-2013 07:12 PM

Hey! That looks like the one that was stolen out of my shop! Thanks for finding it.

Just haul it on back up here and I’ll have a reward for ya, like maybe an ice cold beer!


-- Improvise.... Adapt...... Overcome!

View Mark Davisson's profile

Mark Davisson

597 posts in 3588 days

#8 posted 01-25-2013 07:19 PM

CrazeeTxn: I’m one jock who believed you even in the absence of pictures.

-- I'm selfless because it feels so good!

View DIYaholic's profile


19766 posts in 2946 days

#9 posted 01-25-2013 08:50 PM

Now that we see some proof….
Nice score! That pretty much beats the HF deal!!!

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procrastination a bad thing?

View rum's profile


148 posts in 2857 days

#10 posted 01-26-2013 12:26 AM

Well let us know how you like the The Super Dust Deputy :D

I’m pretty happy with the Thien, yes it does require some time and tweaking, but my separation is at least as good as a one of the crappier cyclones once I got it tuned up. It was pretty cheap to make as well :D

View lanwater's profile


3111 posts in 3205 days

#11 posted 01-26-2013 12:59 AM

Get the oneida super dust deputy.
It works great for me.

-- Abbas, Castro Valley, CA

View mbs's profile


1657 posts in 3211 days

#12 posted 01-26-2013 01:15 AM

there may be some useful information in this thread. I would ditch as much of the flex hose as I could and replace it with either metal or sewer & drain pipe.

-- Sorry the reply is so long. I didn't have time to write a short reply.

View HorizontalMike's profile


7770 posts in 3185 days

#13 posted 01-26-2013 12:57 PM

Since I finally upgraded my 3yr old HF w/Thien just this past month or so by adding a Wynn filter, I would like to point out a recent observation of my system. We all know that with a Wynn filter we move more air (greater CFM), but in addition to that I am seeing that my separation rate/efficiency has improved noticeably. Even LESS finer dust is reaching the collection bag and MORE dust is being separated into the Thien.

I still have a further upgrade to do on this system. I want to turn the DC motor and mount it above the Thien and direct/straight-line connect the output to the DC collection bag ring. Currently my output kinks right at the output with a flex hose up and around to the Thien output. That should further increase my CFM. All that takes is some 3/4in ply to create a new DC stand and some time. I have plenty both… ;-)

BTW, I also centrally locate my DC system and can reach/rotate with ONE 10ft flex hose to each:
  • TS
  • BS
  • Jointer
  • Router table
  • Horizontal Mortiser
And with a 20ft double length hose I can reach my
  • Planer

That being said, I admit that this setup is less ideal for convenience sake. On the plus side, it does maximize the CFM to each machine in use and it takes me just 10-15sec to switch out the hose as I walk to the next machine I want to use.

And by using these quick clamps from WC this becomes a one-handed operation.

-- HorizontalMike -- "Woodpeckers understand..."

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