How much does length matter?

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Forum topic by newwoodbutcher posted 439 days ago 616 views 0 times favorited 10 replies Add to Favorites Watch
View newwoodbutcher's profile


332 posts in 1447 days

439 days ago

As my tool numbers increase, so do my DC requirements.
I’ve got a Delta 760 set up in a separate room (les noise) from my shop. I’m running my cabinet saw, an 8” jointer and a 15” planner off of it on four inch black plastic sewer pipe. Both the jointer and planner are on a 15foot run and are working fine. The table saw on its own run from the DC Y is about 25 feet, also working fine. Now I need to add DC for two band saws and a Performax 16-32 sander. I could get all the machines on a Y from the TS run that would add 30 feet. I have automatic blast gates on all the current hook ups and will do the same for the rest. I only use one tool at a time. I’ve been thinking I would add a second HF 2 HP DC for the additional tools, thinking the 760 won’t handle the extra length. But it sure would be easier and less expensive to add onto the existing DC. I don’t want to go through all the trouble of adding the additional tools to the 760 only to find it inadequate. All the engineering data on DC is bewildering to me. I know some among you have the technical knowledge to answer my question. Can I add the additional 30 feet and tools to the current system? Or do I need to add a second DC? Sometimes I think I should buy a used higher HP (3HP?) system and sell my 760. I’m trying to keep the cost around $300 including the pipe. I already have the blast gates. I will appreciate your advice.

-- Ken

10 replies so far

View Loren's profile


7226 posts in 2245 days

#1 posted 439 days ago

You’re looking at fine dust with those machines, no
chips really. High airflow helps with getting fine dust.

With band saws not a lot of dust gets airborne… it
falls into the saw cabinet.


View Tugboater78's profile


940 posts in 789 days

#2 posted 439 days ago

The subject made me laugh.. sorry

No DC knowledge here, a broom and customs is my current method :(

-- Justin - the tugboat woodworker - " nothing changed me like the first shnick from a well sharpened, decent hand plane"

View distrbd's profile


994 posts in 1043 days

#3 posted 438 days ago

Tugboater78,the subject made me laugh too,it does matter to some!

-- Ken from Ontario

View Greg The Cajun Box Sculptor's profile

Greg The Cajun Box Sculptor

4930 posts in 1905 days

#4 posted 438 days ago

Length always matters when you are working with your wood.

-- Every step of each project is considered my masterpiece because I want the finished product to reflect the quality of my work.

View Loren's profile


7226 posts in 2245 days

#5 posted 438 days ago

I’d say if your present setups is getting your planer
chips, it’s probably adequate to get the drum sander

You’ll lose a lot of suction in bends… not a whole lot
in straight runs of duct.


View Paul Stoops's profile

Paul Stoops

321 posts in 1158 days

#6 posted 438 days ago

If possible, you might consider relocating your DC to a more central location, which might reduce the length of all or at least the longest runs. However, that would probably require some rearrangement of your ductwork.

That said, since you are only using one tool at a time, I would think a 30 ft. run would work, especially if you minimized the number of bends and the length of flex hose, both of which seriously reduce air flow.

-- Paul, Auburn, WA

View newwoodbutcher's profile


332 posts in 1447 days

#7 posted 436 days ago

Thanks you all. If I add the new machines onto the existing DC, I’ll be adding about 30 feet of pipe with one Y, and seven 45’s. Would you go through the trouble to hook it all up? Or would you want more DC?

-- Ken

View Cole Tallerman's profile

Cole Tallerman

389 posts in 782 days

#8 posted 435 days ago

If your looking to spend $300, Get the HF for $150 with coupon. If you put it outside or in a mostly unused room, you wont need to upgrade the filter. Then you have $150 for pipe.

Btw, what automatic blast gates are you using?

View UncannyValleyWoods's profile


335 posts in 461 days

#9 posted 435 days ago

My wife says that girth is much more critical.


View newwoodbutcher's profile


332 posts in 1447 days

#10 posted 434 days ago

I’m not looking to spend $300. If I need to I can spend $300 on this. Can I get away with adding the additional pipe?

-- Ken

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