I have 1550 cfm 2 stage dust collector dedicated to the 15 planer. Right now the the dust collector is located at one end of the shop and I use a 10 ft fexable hose to run to the planer. My shop is about 40' ft long. I mainly use the planer to dimension rough lumber for face frame cabinets. running 3 to 500 bd feet at a time. At 16fpm the dust collector keeps up fine but falls behind at 33fpm. how many chip separating cans can I put in line without losing suction? The dust collector has a 6 inch port I am planning to run 6" ducting from the collector to the Y and then 4 inch to the machine. My last question, Is 1550 big enough to run the ducting on the ceiling?
I buy lumber from 2 different mills. I try to stock about 100 bdft of hit and miss oak, alder, and birch. Depending on lead time of a big job I do buy rough stock. but both mills require planing to final thickness. I buy it this way because its cheaper, stock is the same thickness if I plane it myself, requires less sanding later.
I'd have to agree with Bill.
Are you working towards building cabinets or running a planing mill?
Economically it makes no sense to put forth the effort for the pennies a bd ft the mill will S2S lumber for. For those pennies I'm avoiding the labor, injury, collection and disposal issues.
My multiple suppliers regularly plane to specified and varying thicknesses. Perhaps you need to lean on your planer mill to tighten up things on their end.
1000ft is already tight enough without taking it from the tree to the finish booth.
I did the math and considered the 2 guys hour and a half 4 passes from 29/32 and then the disposal of the waste. You're right its not worth it. One of the mills doesn't sell s2s and the quality of the other is not consistent. Buying 13/16 makes sense but would still require a pass on the planer. And I want to improve my current system. I use a wall/ floor mount direct connect for the table saw. My shop is 24 feet wide and one half is the assembly benches, hardware and some precut cabinet box material. The other half has the dust collector with a separator can at the front with the drill press, planer and shaper on wheels that I can roll out when I need them. I think a 6 inch metal trunk line about 15 to 20 feet from the dust collector is a good start. A 10 ft branch line off the trunk in flexible metal would get destroyed pulling in and out and being hung up when not in use. The table saw is in the middle of the shop and there is a space between the saw and the benches where I plane long stuff so running a 4 or 6 inch branch on the ceiling with a flexible drop is needed. Doing so would require 30' of pipe and 3 elbows. I don't want to build it and have to much suction loss at the machine port. My separator can is a 30 gallon metal trash can. My current set up works as designed its just a poor design and lacks efficiency. I want to rebuild it.
We use a dumpster which sits in a frame with a hinged top on it that has a seperator lid built onto it.
Works great and you can fit a lot of shavings and chips in before you have to empty.
The little seperator cans are fine for saws but not planers or cnc's.
I buy skip planed. I like the convenience. I don't use just 3/4" material. I like nice true flat straight wood. You won't get that with milled lumber. It might be close, and you may get a few great pcs. But I want it all great and straight. I don't worry about chip disposal, my landlord makes mulch and I throw it into his piles. So it's just time.
I run a 1440 CFM cyclone on a 15" planer and it keeps up fine. 25' away with 6" ducting.
Jeff, I have a simialr shop and a 3hp Powermatic two bagger. I have 6" pipe that services a 20" 10hp planer, a 16" jointer, a 15" planer, Bandsaw and unisaw ( soon to be slider). I have about 25' of 6" and 6~8' of flex going to the 20" planer similar to the joiner it with a 6' hard drop then to 6' flex.
My dc supplies about 1900cfm. I don't get the full capacity because I am only running 6". Depending on species,grain orientation , and cut depth ( or feed rate) I get some the pock marks from reciculating chips on board faces in the planer. Simply the DC is not sucking out fast enough.
The reason why your system is not working starts with your hose size 4" hose will only allow about 300cfm thru the pipe. Your planer needs about 600~800cfm work at it's best. Better is to run 6" to the gate then reduce.
Dust collection is a vast subject but can still be a simple as some rules of thumb and a dc with a big impeller and good sized motor.
Clean filtration bags are a must. I have American Filter Fabric bags but unsure if I would buy again. They clog after a couple months in my one man shop with no wide belt sander.
I too live in an area where the lumber is predominantly sold rough and green. I can buy dried and skip planed but it's not really flat and not really dry and hard to straighten out a cupped or warped board that's already 13/16. So here, we all mill our own lumber in house unless it's order from the mainland. Many woodworkers prefer to work the local wood.
The Felder Owners Group on Yahoo Groups is a good place to lerk as they have very incitefull discussions on dust collection, mods to machinery and Bill Pentz posts there often on DC discussions. I think he designed the Clear Vue System.
Simple things to avoid is long runs of flex hose, undersized pipe and hose, clogged bags, 90 degree quick turns, leaky gates, long vertical drops.
The clear vue system uses a 15" impeller designed for 6" pipe and reportedly works great in small shops of about 1200sq'.
Since your using a dedicated bagger with the 10' hose I would say the bags are clogged and the 4" flex is working against you.
Most 15" four post planers come with the 5" port. I run about 25' of 6" S&D to a vertical drop then reduce to 5" with 4~5' 5" flex.
p.s. it's o.k. to mill your own lumber, but geez man the 15" is painfully slow. I picked up a 20" 10hp used euro thicknesser for the same as a new 20" Powermatic and it can take off 3/8" in a single pass. The Powermatic is like 1/16" right? The biggest jump in efficiency is realizing that you can then get two 8" boards through at once. It's hard to keep up by yourself. The larger thicknesser paid for itself right quick. It also has a tersa head so knife change out is about 2 minutes. I still keep the 15" Delta around since I had put in the Byrd head the year before. Nice to have both. But I don't use the Delta unless I have some seriously gnarly grain or super hard that needs the carbide.
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