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2 HP HF DC Mod Question????

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Forum topic by DIYaholic posted 12-28-2011 06:10 AM 3355 views 9 times favorited 38 replies Add to Favorites Watch
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DIYaholic

19180 posts in 2142 days


12-28-2011 06:10 AM

Topic tags/keywords: question dust collector modifications 2 hp hf dc

It is time for me to “Hot Rod” my 2 HP HF DC!!! I plan on upgrading to the 0.5 Micron Wynn Canister filter, building/installing a Thein Baffle and reorienting the motor/impeller. I will also be running 4” metal ducting in order to reduce the use of flex hose. Ive seen several great mods here on LJ, but have a few questions before I dive in.

Questions for those folks that have modified their 2 HP HF DC by mounting the motor and impeller 90 degrees from original orientation (with the motor in a vertical position).

1) Have the motor bearings been adversely effected (wear out and need replacing)?

2) Have the impeller bearings been adversely effected (wear out and need replacing)?

3) Could you provide pictures (or links to pictures) of your build/final configuration?

4) Knowing what you know now, having put your DC through it’s paces: What would you do different/better?

Thanks, in advance, for any and all help.

EDIT: The Hot Rod Wok Mod is going to happen! With that being said…....

Does any one have dimensioned plans for the Trash Can Thien Baffle? (I don’t want to buy a cover, I want to make it)

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


38 replies so far

View fussy's profile

fussy

980 posts in 2518 days


#1 posted 12-28-2011 09:38 AM

I haven’t done what you propose except for the Thein baffle. That works beautifully. As for m ounting it vertically and all that, there’s a ton of info on Phil’s site about it. I’m not sure it makes enough difference to be worth the effort or not. Some expressed concerns about the bearings, but I have not heard of any problems and don’t expect to. as to converting to 6” and running duct work, I don’t believe that in its’ current configuration it would be suitable. I like mine just fine, but I use 10’ of 4” flex and run tool to tool as I need. This works fine, doesn’t cost a ton, or take up space and leave more places to clog. If you seriously want to persue this, I would swap out the 10” impellor for a 12” from Grizzly, about $75 last time I checked. I THINK, from looking at parts manuals and diagrams, that they are interchangeable. It would increase the cfm enough to make it work. On the other hand, dc’s work on volume, so increasing air flow might be the ticket.

In that vein, Rance poisted a similar thread and I gave him a link to wood magazine. They did a comprehensive article on this on a Jet that should guide you. Your dc is as good as the jet so let ‘er rip. If you can;t find the post with the link (Rance found the right one, mine was off) google making a dc flow more air-woodmagazine.

Steve

-- Steve in KY. 44 years so far with my lovely bride. Think I'll keep her.

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DIYaholic

19180 posts in 2142 days


#2 posted 12-29-2011 01:45 AM

fussy,

Thanks for the reply. Interesting idea about swapping out the OEM 10” impeller for a 12” Grizzly impellor. I’m going to have to look into that a liitle more. I read the Wood Magazine article for making a dc flow more air. A good read, thanks.

However, I’m hoping someone that has reoriented the motor/impeller can chime in and verify that all is well and good. This would ease my mind and make this Hot Rod Mod a GO!
So, if you are out there, please speak now or forever…..

Again, thanks fussy for the info.

-- 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 TheDane's profile

TheDane

4997 posts in 3130 days


#3 posted 12-29-2011 01:56 AM

Here’s the link fussy mentioned: http://community.woodmagazine.com/t5/Tools-and-Tool-Buying/Making-a-DC-flow-more-air/td-p/21457

—Gerry

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

View dbhost's profile

dbhost

5609 posts in 2699 days


#4 posted 12-29-2011 02:00 AM

The point behind reorienting the impeller is to reduce bends in the air stream, and minimize flex hose… This works best when coupled with a Thien separator placed directly underneath the intake.

I have seen enough of these done, for long enough that I wouldn’t hesitate to do it… I seriously doubt you will cause enough additional bearing wear to be a concern over the expected life of these machines…

That mod is one I am planning on doing here this upcoming spring. The DC, and separator on the same cart, and the impeller reoriented for the straight shot… Should improve my air flow, AND reduce my dust collectors overall footprint in the shop!

-- My workshop blog can be found at http://daves-workshop.blogspot.com

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DIYaholic

19180 posts in 2142 days


#5 posted 12-29-2011 02:17 AM

Gerry,
thanks for the link.

dbhost,
Sounds like this Hot Rod Mod is a go!!! I only hope that I’m not just Spinning My Wheels.

Would anyone be able to add anything regarding upsizing from the OEM 10” impeller to the 12” Grizzly impeller?

Thanks guys.

-- 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 IrreverentJack's profile

IrreverentJack

724 posts in 2310 days


#6 posted 12-29-2011 02:19 AM

Randy, Here’s Bert's HF make over. -Jack

View NBeener's profile

NBeener

4808 posts in 2641 days


#7 posted 12-29-2011 02:25 AM

You know how the Internet tends to make tiny problems look huge ?

I’ve never seen any evidence that flipping the HF DC motor causes it harm. You’d think that … if it DID cause harm … we’d all know about it.

At the end of 2012, there’s supposed to be a 2HP HF DC drag race, or … Concours d’Elegance.

Gentlemen … and Ladies … start … your … engines :-)

-- -- Neil

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DIYaholic

19180 posts in 2142 days


#8 posted 12-29-2011 02:38 AM

Jack,
Thanks for the photo and link!

I thinkst thats I should document my exploits in a thread titled 2HP HF DC Hot Rod Wok Mod!!!

Neil,
I kind of figured that No news is good news regarding bearing wear. Thanks for easing my fears.

Of course, it has to be a Drag Race.
Not becuase they’re All Dressed Up .....it’s just that Dust Collectors prefer STRAIGHT RUNS!!!

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

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DIYaholic

19180 posts in 2142 days


#9 posted 12-30-2011 01:26 AM

The Hot Rod Wok Mod is going to happen! With that being said…….

Does any one have measured, dimensioned plans for the Trash Can Thien Baffle?

I don’t want to buy a cover, I want to make as much of this as I can. Detailed plans would help alot. I’m going to do more re-searching to see if anything is out there.

Again, thanks for ALL the info and help so far!

-- 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 Grandpa's profile

Grandpa

3256 posts in 2143 days


#10 posted 12-30-2011 04:59 AM

Lance made a very nice looking one that I remember. Some others have also post very nice units, I just remember a conversation with Lance. Go to the search box above and enter Thein Baffle Separator by Lance and see if he doesn’t have some photos and discussion on the subject. He made a very nice looking unit as I recall.

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DIYaholic

19180 posts in 2142 days


#11 posted 12-30-2011 05:51 AM

Grandpa,

Thanks for the heads up. I will definitely check out the work that Lance did.

I’m am actually checking out LJ and other sites, just clicking and reading posts, clicking and viewing pics & vids. Trying to fill this vast cavern of emptiness called my brain.

Again, thanks.

-- 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 NBeener's profile

NBeener

4808 posts in 2641 days


#12 posted 12-30-2011 02:53 PM

”Trying to fill this vast cavern of emptiness called my brain.”

Careful.

The brain is a lot like an internal combustion engine, relying upon a generous air:fuel ratio to perform.

I’ve come to cherish the vast wasteland up there. It’s … who I am ;-)

-- -- Neil

View StumpyNubs's profile (online now)

StumpyNubs

6868 posts in 2268 days


#13 posted 12-30-2011 03:01 PM

I have a question related to this: Which would be better, adding a Thien setup of a homemade cyclone?
Ihave the HF collector with 4” ducts running all over the shop. I love it. I have had my motor turned and mounted for some time now with no problem.

-- Subscribe to "Stumpy Nubs Woodworking Journal"- One of the crafts' most unique publications: http://www.stumpynubs.com/

View brtech's profile

brtech

906 posts in 2390 days


#14 posted 12-30-2011 04:12 PM

A properly designed cyclone is more efficient than the Thien baffle.

I thought I read a thread that said the impeller upgrade didn’t work = the motor didn’t have enough power to spin the bigger impeller.

View TheDane's profile

TheDane

4997 posts in 3130 days


#15 posted 12-30-2011 04:23 PM

brtech—I have always thought the same, but I think the Thien baffle is easier to fabricate, and if space is a consideration would be easier to incorporate into a tight shop.

—Gerry

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

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