hello,
thanks for the heads up on the sale price. I ordered the DIY kit because I want a larger container. I am not a cuebuilder, I mostly do industrial wood tooling, my question is how does it handle larger wood chips and shavings like what would come from a jointer or planer? thanks,
Mike
thanks Joey, thats why I went with the DIY kit so i could adapt to a larger bucket. I was thinking something in the 15 to 20 gallon range.
Mike
I think Joey gets a kick back from Onedia...hehehehe....Thanks JoeyRay Weeks
I got interested in what is the optimum airflow through a DD (Dust Deputy) to capture the most fine dust in the DD bucket. I have picked up a couple more Ridgid wet/dry vacs at garage sales to test them out - the 14G (WD1450) and the 16G Detachable Blower (WD1680). When using the 16G I noticed I was getting more large stuff escaping the DD bucket and getting into the Ridgid bucket. I began to wonder if I was "over-sucking" the DD.
I went to Bill Pentz's site and started reading. He doesn't think highly of the Oneida Dust Deputy, so he doesn't talk about it, but here's what I picked up.
For a woodshop, you want 3500-4500 FPM (feet per minute) of airflow at the pickup to get the most common sizes of wood chips - this speed will also capture fine dust - the heavier stuff requires the higher speed. According to Bill Pentz, most commercial cyclones are designed for 4000FPM.
Also, Bill Pentz won't discuss duct sizes smaller than 3.5" diameter as the flow loss per foot is too great. But for those of use using shop vacs, the tubing/duct size is about 2-1/2", some are smaller at 1-1/4". I use Ridgid vacs and mine have 2-1/2" hoses. So the following is based on that size.
So the primary (according to Pentz) equation is FPM = CFM/Area where FPM is Feet per Minute; CFM = Cubic Feet per Minute; and Area is the cross-sectional area of your duct (tube) in square feet.
The results are: For a 2-1/4" duct, 4000FPM equates to 110 CFM. 4500FPM equates to 124CFM.
Remember that these are the flowrates at the pickup point and are dependent on duct size and length, filter losses, and even shape of the dust pickup, among others, but these seem to be the main ones. So to optimize, you're going to need a shop vac that can provide more CFM than these values - other reading indicates flow losses could be as much as 50% depending on the above factors.
So off I go to Ridgid's Wet/Dry Vac page http://www.ridgid.com/Tools/Wet-Dry-Vacs2/index.htmand here are the CFM ratings for the current models:
6 Gallon - WD0670: 62CFM
9 Gallon - WD0970: 70CFM
12 Gallon - WD1270: 145CFM
14 Gallon - WD1450: 168CFM
16 Gallon - WD1680: 172CFM (has the detachable blower)
16 Gallon - WD1851: 203CFM
I didn't look at other manufacturers.
Hope some find this helpful or interesting.
Gary
My Shop Vac outsucks the big Jet canister dust collector if using 2 1/4 hose. It's not even close.
That 1680 model would be a bonus.
Snip... I began to wonder if I was "over-sucking" the DD.
There are some obvious jokes here, but I'm just going to leave this alone . . .
I went to Bill Pentz's site and started reading. He doesn't think highly of the Oneida Dust Deputy, so he doesn't talk about it, but here's what I picked up.
IIRC, Bill had a competing product, but Oneida patented theirs first, and they forced him to take it off of the market. Ironic, if indeed he pioneered the research, that he cannot offer the product for the shopvac platform. I believe he used to have some description of the events on his web site, and obviously he was not pleased with the outcome.
My Dust Deputy arrived Friday but I just got around to opening the box. I was disappointed to see a badly kinked hose as part of the package. A kink like this is permanent. And, sure enough, they will not accept returns of the hose.
There is a noticeable difference in the sound of the motor when I manually straighten the hose so I know it's imposing a restriction in the flow.
(a thought just occurred to me: would application of a heat gun help remove the kink? I'll try it later today & let you know.)
UPDATE: after applying heat while manually compressing & supporting the kinked area until cool, I can happily say that this is a very good solution to this problem.
It's height/attachment method makes it pretty flimsy so I'll have to work out some way to brace it. That said, it works as advertised and will surely help keep a filter clean longer, providing better vacuum for a longer period.
Does your wife looking over your shoulder while you are on AZ think the same thing? Mine sure does not. I have not been able to figure out how to block those type of avatars without blocking all avatars. I really like seeing avatars that represent something about the person, or their sense of humor and such, but these soft porn ones I wish were not allowed.Joey you always have the best avatars :grin:
They should and probably would send you a new hose!
I bought the Deputy from Woodcraft, couldn't wait for an online purchase to arrive. I have used it in the basement remodeling I'm currently involved in, and it works great, but kept falling over. I went to Home Depot and bought a dolly that is used for the 40-50 gallon trash barrels and screwed it down to that. Now it just follows me around with the Rigid Shop vac towing behind it. I also bought the HEPA filter from HD, it is able to be washed. Haven't put that on yet. I've been using the same filter all month, and this weekend I used it to pick up the cement chunks/dust from the floor and it did it without any problems. It still has the same suction as it did a month ago. The DD is worth the money in my opinion.
Dave
Does your wife looking over your shoulder while you are on AZ think the same thing? Mine sure does not. I have not been able to figure out how to block those type of avatars without blocking all avatars. I really like seeing avatars that represent something about the person, or their sense of humor and such, but these soft porn ones I wish were not allowed.