Dust Collection Added To Shop - Woodworking Talk - Woodworkers Forum
Reply
 
Thread Tools Display Modes
post #1 of 23 Old 08-17-2009, 01:35 PM Thread Starter
Senior Member
 
Chiefwoodworker's Avatar
 
Join Date: Jul 2008
Location: Worthington, MA
Posts: 223
View Chiefwoodworker's Photo Album My Photos
Dust Collection Added To Shop

For those interested I just posted a dust collection article on my blog http://www.srww.com/blog describing my installation project.


Joe.....
Website: http://www.srww.com
Blog: http://www.srww.com/blog
Chiefwoodworker is offline  
Sponsored Links
Advertisement
 
post #2 of 23 Old 08-18-2009, 10:09 AM
Senior Member
 
TS3660's Avatar
 
Join Date: Mar 2008
Location: Ft. Mill, SC
Posts: 1,461
View TS3660's Photo Album My Photos
Joe,
Fantasic information. I am in the research stage of DC for my shop and your blog saved me a hundred hours. I so much appreciate people like you. I will follow your lead because it sure looks good and makes total sense. The things you mention are the things I was going back & forth about (PVC vs. other pipe, 45's vs. sweeps, blast gates, etc.) Thanks so much.
Bud

Bud

"Veggie burgers aren't bad if you put enough meat on them"
TS3660 is offline  
post #3 of 23 Old 08-18-2009, 10:48 AM Thread Starter
Senior Member
 
Chiefwoodworker's Avatar
 
Join Date: Jul 2008
Location: Worthington, MA
Posts: 223
View Chiefwoodworker's Photo Album My Photos
Hi Bud,

Like you I read a lot of articles, blogs and forum posts. Glad I can pay back a little to the system that helps us all. Post some pictures or send some to me directly when you finish your system. I would be interested in seeing it. My contact info is on my web/blog.

Joe.....
Website: http://www.srww.com
Blog: http://www.srww.com/blog
Chiefwoodworker is offline  
Sponsored Links
Advertisement
 
post #4 of 23 Old 08-18-2009, 02:21 PM
Senior Sawdust Producer
 
Leo G's Avatar
 
Join Date: Oct 2006
Location: Windsor Locks, Connecticut
Posts: 4,362
View Leo G's Photo Album My Photos
I really don't want to say this, but I think you messed up big. Your choice to go with all 4" tubing is a big mistake. I hope I am wrong. You never mentioned how big your dust collector is (CFM, Fan curve). Most ducting systems have a main trunk that is much bigger than the drops, this helps keep a large volume of air flowing while limiting it to the individual machines. I really cringed when you said in your blog that you glued all the joints, it is what it is now. I hope that I am very wrong, or you have a very powerful DC system.

I still look forward to your first run and hope it proves satisfactory.

Measure Twice Cut Once -- It's a lot easier to cut more off then it is to cut MORON.
Finishing is 3 parts chemistry and 1 part VooDoo http://lrgwood.com
Leo G is offline  
post #5 of 23 Old 08-18-2009, 05:29 PM
Senior Member
 
Join Date: Oct 2008
Location: Santa Rosa CA
Posts: 147
View Gus Dering's Photo Album My Photos
Leo,
He will be ok as long as he only uses one tool at a time. The large trunk lines are needed when you have multiple ports open at the same time.
Gus Dering is offline  
post #6 of 23 Old 08-18-2009, 05:33 PM
Senior Sawdust Producer
 
Leo G's Avatar
 
Join Date: Oct 2006
Location: Windsor Locks, Connecticut
Posts: 4,362
View Leo G's Photo Album My Photos
Just afraid of the friction resistance in the lines. The good thing is PVC has a nice smooth wall. But I know just from my system that there are losses in short distances. The static pressures developed within the 4" ducting will add up to a lot of resistance.

Just hope I am wrong. It looks like he did a nice job of constructing the ductwork.

Measure Twice Cut Once -- It's a lot easier to cut more off then it is to cut MORON.
Finishing is 3 parts chemistry and 1 part VooDoo http://lrgwood.com
Leo G is offline  
post #7 of 23 Old 08-18-2009, 05:57 PM
Senior Sawdust Producer
 
Leo G's Avatar
 
Join Date: Oct 2006
Location: Windsor Locks, Connecticut
Posts: 4,362
View Leo G's Photo Album My Photos
I ran some calculations using an Excel program designed by Bill Pentz. I have a lot of unknowns in the program so I made a lot of assumptions. I went off of #7, the planer line. This is likely the line that will need the most CFM avaliable. I came up with a SP of about 8. Now you will need to look at your fan curve to see what your DC can produce at those static pressures. But in reality, it doesn't matter much. A 4" pipe already has a limitation in it of approx 350 CFM maximum draw. If you have a DC with a very high SP gradient then it is possible to overcome this a bit. But the limitation still exists.


Measure Twice Cut Once -- It's a lot easier to cut more off then it is to cut MORON.
Finishing is 3 parts chemistry and 1 part VooDoo http://lrgwood.com
Leo G is offline  
post #8 of 23 Old 08-18-2009, 06:51 PM Thread Starter
Senior Member
 
Chiefwoodworker's Avatar
 
Join Date: Jul 2008
Location: Worthington, MA
Posts: 223
View Chiefwoodworker's Photo Album My Photos
Leo,

Nice work. I did similar hand calculations following Sandor Nagyszalanczy numbers from his book Woodshop Dust Control. I too had to make a number of assumptions and found this to be right on the edge of acceptable. Then I talked to a number of people who actually used 4" PVC with even smaller dust collectors (1.5 hp vs my 3 hp) and roughly equivalent runs. While I didn't actually make measurements, just feeling the airflow and watching several planers in action I was convinced the calculations were well over conservative. But I am anxious to find out too. I will post the results in about two weeks on my blog and here.

Joe.....
Website: http://www.srww.com
Blog: http://www.srww.com/blog
Chiefwoodworker is offline  
post #9 of 23 Old 08-18-2009, 09:36 PM
ACP
Senior Member
 
ACP's Avatar
 
Join Date: Jan 2009
Location: Sioux Falls, SD
Posts: 3,391
View ACP's Photo Album My Photos
It does look great but Leo cringed about glueing the piping. I think you may have wanted to leave a few spots you could pull open in case of a clog or blockage. Otherwise awesome work. What a great shop!
ACP is offline  
post #10 of 23 Old 08-19-2009, 07:23 AM Thread Starter
Senior Member
 
Chiefwoodworker's Avatar
 
Join Date: Jul 2008
Location: Worthington, MA
Posts: 223
View Chiefwoodworker's Photo Album My Photos
That's what God made snakes for (the plumbing variety). ;<)

Joe.....
Website: http://www.srww.com
Blog: http://www.srww.com/blog
Chiefwoodworker is offline  
post #11 of 23 Old 08-19-2009, 10:24 AM
ACP
Senior Member
 
ACP's Avatar
 
Join Date: Jan 2009
Location: Sioux Falls, SD
Posts: 3,391
View ACP's Photo Album My Photos
That God, he's made a lot of good stuff!
ACP is offline  
post #12 of 23 Old 08-19-2009, 10:33 AM
Senior Sawdust Producer
 
Leo G's Avatar
 
Join Date: Oct 2006
Location: Windsor Locks, Connecticut
Posts: 4,362
View Leo G's Photo Album My Photos
Quote:
Originally Posted by Chiefwoodworker View Post
Leo,

Nice work. I did similar hand calculations following Sandor Nagyszalanczy numbers from his book Woodshop Dust Control. I too had to make a number of assumptions and found this to be right on the edge of acceptable. Then I talked to a number of people who actually used 4" PVC with even smaller dust collectors (1.5 hp vs my 3 hp) and roughly equivalent runs. While I didn't actually make measurements, just feeling the airflow and watching several planers in action I was convinced the calculations were well over conservative. But I am anxious to find out too. I will post the results in about two weeks on my blog and here.
My 2.5HP Onieda Gorilla has about 850 CFM at a SP of 8. But still, you are running through 4" ducting so that will be the limiting factor.

Measure Twice Cut Once -- It's a lot easier to cut more off then it is to cut MORON.
Finishing is 3 parts chemistry and 1 part VooDoo http://lrgwood.com
Leo G is offline  
post #13 of 23 Old 08-19-2009, 11:07 AM Thread Starter
Senior Member
 
Chiefwoodworker's Avatar
 
Join Date: Jul 2008
Location: Worthington, MA
Posts: 223
View Chiefwoodworker's Photo Album My Photos
Quote:
Originally Posted by ACP View Post
That God, he's made a lot of good stuff!
Yeah! Cherry trees, Walnut trees, Maple trees, Birch trees. What more could a woodworker ask for?

Joe.....
Website: http://www.srww.com
Blog: http://www.srww.com/blog
Chiefwoodworker is offline  
post #14 of 23 Old 08-19-2009, 11:08 AM
Senior Sawdust Producer
 
Leo G's Avatar
 
Join Date: Oct 2006
Location: Windsor Locks, Connecticut
Posts: 4,362
View Leo G's Photo Album My Photos
Stainless steel trees?

Measure Twice Cut Once -- It's a lot easier to cut more off then it is to cut MORON.
Finishing is 3 parts chemistry and 1 part VooDoo http://lrgwood.com
Leo G is offline  
post #15 of 23 Old 08-19-2009, 12:23 PM Thread Starter
Senior Member
 
Chiefwoodworker's Avatar
 
Join Date: Jul 2008
Location: Worthington, MA
Posts: 223
View Chiefwoodworker's Photo Album My Photos
Now what would a woodworker do with them? And can you tap them for syrup?

Joe.....
Website: http://www.srww.com
Blog: http://www.srww.com/blog
Chiefwoodworker is offline  
post #16 of 23 Old 08-19-2009, 02:30 PM
Senior Sawdust Producer
 
Leo G's Avatar
 
Join Date: Oct 2006
Location: Windsor Locks, Connecticut
Posts: 4,362
View Leo G's Photo Album My Photos
Tap'm for 10W-30

Measure Twice Cut Once -- It's a lot easier to cut more off then it is to cut MORON.
Finishing is 3 parts chemistry and 1 part VooDoo http://lrgwood.com
Leo G is offline  
post #17 of 23 Old 08-19-2009, 04:36 PM Thread Starter
Senior Member
 
Chiefwoodworker's Avatar
 
Join Date: Jul 2008
Location: Worthington, MA
Posts: 223
View Chiefwoodworker's Photo Album My Photos
There ya go!

Joe.....
Website: http://www.srww.com
Blog: http://www.srww.com/blog
Chiefwoodworker is offline  
post #18 of 23 Old 09-02-2009, 07:37 AM Thread Starter
Senior Member
 
Chiefwoodworker's Avatar
 
Join Date: Jul 2008
Location: Worthington, MA
Posts: 223
View Chiefwoodworker's Photo Album My Photos
Hi folks,

Yesterday I completed my blast gate installation and hookups. I gave the system a test run using wide cherry boards on both my thickness planer and drum sander. Everything worked great. In fact it worked as good or better than the hoses I have always used connecting the DC with a unit in an "as the crow flys" connection. I also gave each drop a hand test (felt the air flow with my hand). It seems quite god. Next I will make actual air flow measurements with calibrated equipment. That will take me another week or so but I will post the results.

Joe.....
Website: http://www.srww.com
Blog: http://www.srww.com/blog
Chiefwoodworker is offline  
post #19 of 23 Old 09-02-2009, 07:42 AM
Senior Member
 
TS3660's Avatar
 
Join Date: Mar 2008
Location: Ft. Mill, SC
Posts: 1,461
View TS3660's Photo Album My Photos
I'll be waiting. Thanks.

Bud

"Veggie burgers aren't bad if you put enough meat on them"
TS3660 is offline  
post #20 of 23 Old 09-02-2009, 08:45 AM
Senior Member KE4TQP
 
John in Tennessee's Avatar
 
Join Date: Jun 2008
Location: Nashville
Posts: 570
View John in Tennessee's Photo Album My Photos
Outstanding,,,,

Now we need pictures......
John in Tennessee is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Woodworking Talk - Woodworkers Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Dust collection and shop layout tburritt Design & Plans 21 03-16-2010 08:26 PM
dust collection jcinq12 General Woodworking Discussion 9 03-08-2009 10:12 PM
Shop Vac Based Dust Collection... dbhost Power Tools & Machinery 6 01-05-2009 08:18 PM
Dust collection TS3660 Dust Collection 10 05-04-2008 08:31 AM
dust collection carver348 Dust Collection 1 03-22-2008 10:15 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome