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39 posts in 2149 days

Location: Southern California

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295 posts in 2433 days

#1 posted 07-19-2016 01:38 PM

Saw your DC build this morning. Nice job! How’s it working for you? I’ve heard good and bad about Harbor Freight stuff. So far what items I’ve gotten from them have worked out fine. Mine is still in pieces waiting for other projects to be completed. Just got back to shop projects this month :-) Router table build almost complete !

I had taken a tip from Stumpy Nubs videos a while back about the HF DC being a diamond in the rough before he got so commercial this past year. I figured I’d give it a try with the SDD as I’ve blown more on Starbucks over a year than the DC costs with a super coupon.

I had talked with Dick Wynn about the filters and together we’ve come up with an approach that can grow if I need to swap out the HF Blower for something bigger. [I can snap on an additional filter at bottom of the one I’ve purchased along with a dust pan more than doubling the size]

I heard several people had swapped out the HF fan for a Rikon 200 fan with good results, but that’s still another option to try if what I’m building needs more flow. [I plan on using 6” diameter tubing for mainline—Mr Nubs suggest that may not give me the velocity I need to collect chips. After hooking up my Rockler universal dust port hose to my current Ridged 1HP DC via an adapter and 4” flex hose he may have a point; I get a lot of build up in the 4” hose and I can see the flow is very restricted at the 2” hose end. I may have to create some type of vacuum boost for it

-- bkseitz, Washington "if everything is going well, you've obviously overlooked something"

View go4tech's profile


39 posts in 2149 days

#2 posted 07-25-2016 01:17 AM

The results are encouraging. Made a slight enhancement to place a hose support in front of the SDD to provide 18 inches of straight inlet.

Measured results through the entire 25’ length of the 5” flex hose (present use case):

- FPM = 5900 (meter peaks at ~ 6200 and does not seem to get below 5800),
- Custom Hose Connection = 4” ID (small 4” ID ABS pipe section. Pipe doubled to fit flex hose, Fits over existing 4” ports on BS and Jointer, and into custom 90 degree bend pipe on TS),
- CFM = 515 CF/M
- Noise Level = 86 dBa

Measured with Turnigy Anemometer and iPhone via UE SPL App. Have not measured the static pressure.

Worked hard to keep connections smooth and the outlet side as large as possible. Believe that you may wish to consider the connection from the exhaust side of the blower through the HFT 6”x4” to 5” adapter. If one’s math is correct stepping down to the 5” section results in an 18% decrease in area.

Would expect the flow rate to increase when the 25” length is cut down to something closer to end use case (reduced flow resistance).

Have several weekends using it. Have emptied the holding barrel once. Was about 3/4’s full.

Based on actual usage, Band Saw, Jointer, Planer, Sander, ROS, Biscuit Cutter are effectively clean up free. Miter Saw and Table Saw are much better than prior. MS will need some sort as not all is collected. Maybe a well vent is needed (set into work bench). Believe TS will need some form of topside hood (just not enough flow from top down through zero clearance insert and material >1”).

Interesting sort for the ROS and Biscuit Cutter.

- ROS: Used an old shop vac hose to connect to dust port. Built very leaky coupling that allows about 1 foot of the old hose to go into the 4” custom fitting with rest of opening unrestricted. Collects dust very well and cleans surrounding area. The shop vac hose provides more than enough flexibility to the work area.

- Biscuit cutter: just pointed dust collection port of the PC557 into the open end of flex hose laying on bench close by. No mess. No Fuss. No issue. No additional clean up. Was more than happy.

Effectively removes need to clean up shop due to clippings and saw dust (except MS and TS). Maybe worth saying that the shop is open with flow through. Shop clean up is now more of blown in material from neighbors tree. Feel much better at the end of the day due to much lower dust. Based on this, would say worth it.

The only down side, still get to move the hose to individual stations. Small, one man shop at this point. No issue at this time.

Hopefully, someone more knowledgeable can add to our discussion. Maybe Mr. Pentz would say it is all wrong.

Cost Basis (if memory is correct)
- Blower and Mobile Base – $20 (Craiglist find),
- Super Dust Deputy – $170,
- Wynn Environmental nano Filter – $180,
- 25” flexible hose – $80,
- Wireless Christmass light switch – $7,
- 40A, 120V Contractor – $8, and
- Material/Hardware (purchased) – $40.

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