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View WorksInTheory's profile

Okay talk some sense into me

by WorksInTheory
posted 02-03-2018 11:12 PM


18 replies so far

View Rayne's profile

Rayne

1190 posts in 1898 days


#1 posted 02-03-2018 11:14 PM

If large chips hit the impeller, you DC will bite the dust quickly. Make the separator or get a Super Dust Deputy or similar if you’re really short on time. It’s worth it one way or another and extends the life of your DC.

View Richard Lee's profile

Richard Lee

239 posts in 1133 days


#2 posted 02-03-2018 11:16 PM

The screen is there for a reason , to keep big pieces from destroying your impeller.

View 000's profile

000

2859 posts in 1257 days


#3 posted 02-03-2018 11:30 PM

Cut em out!
If planer chips destroy your impeller then you need a better dust collector. The chips that do make it through the grid don’t damage the impeller, just sayin

Just be careful not to suck up anything that CAN damage it.

PS: I’m a rebel, so take it for what it’s worth..

View kocgolf's profile

kocgolf

395 posts in 2537 days


#4 posted 02-03-2018 11:39 PM

Be aware that a separator will definitely cause a hit in your CFM. A 1hp will lose a lot. Super Dust Deputy does pretty well with the HF collector, at least with something like a planer. I am probably losing all acceptable collection of fine particles on the table saw, so would say the scientists, but whatever. Do the best you can. I wouldn’t remove the screen though. I think a separator and your planer would get along just fine.

View Lazyman's profile

Lazyman

3323 posts in 1746 days


#5 posted 02-03-2018 11:56 PM

I would not remove the grate. It is there to protect the impeller from large impacts that could break it.

What kind of planer do you have? My DeWalt 735 has an impeller that expels the chips faster than my shop vac can so I just have a simple separator in between the planer and the vac and unless if forget to empty the separator, none of the chips ever make it to the vac. I’ve seen videos where they just had the 735 send the chips into a separator with no vac or DC connected and it worked very well.

-- Nathan, TX -- Hire the lazy man. He may not do as much work but that's because he will find a better way.

View WorksInTheory's profile

WorksInTheory

177 posts in 1961 days


#6 posted 02-04-2018 07:53 AM

Sorry, I should have indicated my planer is a Grizzly G0505. Real basic, no blower so can’t just collect chips.

If I use the dust collector with a jointer, planer and maybe in the future a down draft table. Would roll the DC around and hook up to each machine.

I wonder if I could not permanently remove the grate but just for jointer or planer use like not completely cut out, then just bend it out as needed. Don’t want to loser CFM as it’s already weak. What could come out of planer or jointer that would hurt the impaler?

View mrg's profile

mrg

860 posts in 3358 days


#7 posted 02-04-2018 01:47 PM

The shavings coming off of your planer shouldn’t be any bigger than those coming from your jointer. I have a Dewalt 735 and have no issues with using it with my dust collector. It just fills the bag quicker. Now if you are sucking up nails and blocks of wood I would say you will damage your dust collector. If no big bangs or loud noises you are OK.

-- mrg

View OSU55's profile

OSU55

2239 posts in 2348 days


#8 posted 02-04-2018 02:27 PM

A little different view – although many spend a lot of time and $’s on DC, few actually end up with a system that prevents the dangerous small, invisible stuff from getting in the air (hobbyists not industry). Hence I view it as chip vs dust collection. From this perspective, losing some cfm due to a separator that makes it much easier to deal with chip handling is no big deal. Its much easier and faster for me to remove the thein top and dump the trash can vs messing with the plastic collection bags, and the filter doesnt get bigger chips/dust build up like before so doesnt have to be cleaned as often. A respirator to prevent inhalation of the small stuff is needed either way, so I chose a method thats easier to maintain.

Many argue the cfm #s and such, but unless the actual collection points are designed properly its all moot. As long as chips arent clogging the ducts and there isnt some obvious improvement for a certain machine, you are ok, just wear the respirator thats needed anyway. I dont find anyone thats actually done the necessary air quality tests to prove there is not any dangerous dust floating in their shop – its more a placebo affect.

View Lazyman's profile

Lazyman

3323 posts in 1746 days


#9 posted 02-04-2018 02:54 PM

Lots of people remove those grates for the reason that you are contemplating. If you never use it for anything but the planer, jointer and down draft table, the chances of a large chuck are pretty minimal. But if you ever use it more like a shop vac to clean up the floors or to suck up a pile that you swept up, you are bound to suck up some chucks of wood, screws, bolts or some other large item that you didn’t know was there until you hear it clunking down the hose or hitting the impeller.

BTW, I agree with OSU55. For my shop vac anyway, my crude separator does not make a noticable difference in suction but makes emptying and filter cleaning much less of a hassle.

-- Nathan, TX -- Hire the lazy man. He may not do as much work but that's because he will find a better way.

View Kelly's profile

Kelly

2280 posts in 3302 days


#10 posted 02-04-2018 10:16 PM

None of my seven collectors had a screen. For the planer, shouldn’t need one, but, for cleaning my floors,I use a separator.

View WorksInTheory's profile

WorksInTheory

177 posts in 1961 days


#11 posted 02-05-2018 12:50 AM

So wonder if I could remove it for use with planer, etc but put a screen on the other end of the hose where and when and if I clean floors

View WorksInTheory's profile

WorksInTheory

177 posts in 1961 days


#12 posted 02-05-2018 06:13 AM

I am thinking instead of a Thien baffle I would make the version where it’s a box on top of the lid with a divider T wall. Anyone have experience with this and if it’s inferior to the Thien or would have less impact on air flow?

View Lazyman's profile

Lazyman

3323 posts in 1746 days


#13 posted 02-05-2018 02:46 PM

If I understand what you mean, I don’t have any scientific facts to back this up but I would think that the divider or baffle would result in more resistance and turbulence because the air stream has to make such an extreme changes in direction to go around it. Frankly, if your separator is large enough, you can simply have a hose in and a hose out and you will leave 99% of the coarse dust in the the separator and all of the big chips and chunks. If you have the air stream injected horizontally so that it spirals and the exhaust hose coming out of the top, you’ll leave a little more of the finer dust in the separator. From what I can tell, what the Thein baffle mostly does is prevent the spiralling air turbulence from disturbing the dust that has already separated into the bottom of the bin, especially as the bottom starts to fill up. So you can just skip the baffle altogether and achieve your goal.

-- Nathan, TX -- Hire the lazy man. He may not do as much work but that's because he will find a better way.

View Kelly's profile

Kelly

2280 posts in 3302 days


#14 posted 02-06-2018 10:12 PM

I’m another who would vote to cut the screen/grid out and just replace it at the other end with a removable one.

View eflanders's profile

eflanders

326 posts in 2209 days


#15 posted 02-06-2018 11:12 PM

I have two DC units. One is dedicated to the saws and it has a separator because chips get in the DC from the various saws. My other unit is strictly used with the jointer and planer. The screen was removed on this unit because it would clog from shavings on wide boards. The other (saw) DC had issues with wide board shavings too and I was constantly having to empty my (55 gal.)collection bin. I work almost exclusively with rough sawn lumber. Neither unit does floor cleanup by the way. By adding a separate DC unit dedicated to the jointer and planer I saved a lot of money vs. buying a larger DC unit. By the way, that second unit I got was a used HF unit. It works just fine for the course shavings but I would never consider using it for any fine sawdust. As it was, I ended up adding a second filter bag to it to capture the few fines that were getting out of the HF bag. I had an extra filter bag because I put a pleated filter on my (saw) DC.

View jimintx's profile

jimintx

913 posts in 1943 days


#16 posted 02-08-2018 04:04 PM

I lean toward the group that says remove the grid and be careful what you vacuum up from the floor. None of my shop vacs have ever had such grids, and they are often used for floor cleaning. My PM dust collector has a grid in the 4” inlet, but it is only a cross-hairs style, and doesn’t ever clog. I’d say a lot can get past it.

HOWEVER – my personal solution is to take the machine outside and let the chips and dust spray out into the ambient air. I do this with several different machines, all of which are on mobile bases. I am lucky though, that my set up allows this to be done rather easily.

-- Jim, Houston, TX

View WorksInTheory's profile

WorksInTheory

177 posts in 1961 days


#17 posted 02-08-2018 10:58 PM

jimintx – do you have a DW715x? Mine doesn’t have a blower so I am thinking my dust collection pulls things out of the way so it doesn’t clog up so probably can’t do what you mention. My is a cross-hairs grid too but it is clogging up so I think I might just clip it out and take my chances until I can build a separator.

View TheFridge's profile

TheFridge

10858 posts in 1844 days


#18 posted 02-09-2018 01:47 AM

Had the exact same problem. I cut it out. I don’t really worry too much about screws and whatnot. I just put pieces too big in my scrap bucket. I’d do that whether vacuuming or sweeping.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

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