On 12/02/2015 12:06 PM, Gene Heskett wrote: >> This is probably a silly suggestion, but for not a whole lot more than >> a good shop vac, you can get a decent dust collector from Grizzly. I >> bought one years ago after being driven nuts by the screaming shop >> vac, and haven't looked back since. Extra hosing sent to the floor of >> the shop with a wide-mouth collector makes a wonderful dustpan too. >> >> Mark > I have one of their 1.5HP models, 4" intake, hooked to the planer with a > home made 4" pvc draw tube slit about 1.5" wide, screwed to the output > face of it. PITA. Planing poplar, which comes off in long strings, the > first thing I had to do was cut away the large object grid in its intake > port. Its standing next to a wall, and normally has a couple sections of > dryer hose that run up to a 4" ABS elbow hanging from the ceiling so I > can walk under it, comes back down & has a 4" ABS that plugs into the > end of the draw tube, which is capped on the far end. Rated at 760 CFM, > its no where near enough suck to keep the planer clean as it spits out > small chips onto the front bad. The dryer hose, is that bend it once alu > crap as I've been unable to source any of the old wire re-enforced > plastic stuff locally. And its a shock hazard. I machined an adaptor so > I could plug in the 2.5" hoses from the big vac, but it doesn't have > enough suck to clean the floor if 2 of them are hooked in series so I > can reach most of the garage floor. And too much junk on the floor to > make it an easy sweep, something I detest doing because it raises more > dust. I'd much rather suck it up at the source & be done with it. > > I've one of those $90 1HP GMC baggers you can hang on a wall, has a 4" > intake, hanging under the eaves of the 12x16 shop building with its > intake faceing a hole in the wall so I can hose it to the jointer & > bandsaw. I had sewed up a big muslin bag about 20" in diameter and 10 > feet long, with a dump zipper in the far end, hanging on screw eyes > under the eaves. It has more suck than the grizzly. But the weather got > to the bag last spring and its just blowing out in the grass alongside > the building now. Composting in the grass I guess. :) I haven't spit > out enough to cover & kill the weeds with it yet. Lasted about 6 years > though. The zipper wasn't all that useful as the sawdust didn't make it > to the far end, falling out of the air stream about 3 feet from the > blowers exhaust port. Probably makes a great termite lunch though. :( > > Pix next, > > Cheers, Gene Heskett
If you have more than one machine or outlet hooked up to the dust collector, you need a gate valve at each one. More than one opening leaves more than one path for the suction, and will degrade the amount of suction you'll have at any one port. I have (or rather had since I haven't yet set up my shop since the move to Michigan) 4 machines and a floor "sucker" set up, but only one gate valve was open at any time to keep the concentration of suction at that one machine. Since I was a one-guy shop, I only ran one machine at a time, so that wasn't really a hindrance. That being said, you do need to size the dust collector to the type of work you are doing. Dust collectors depending on the volume of air moving to collect the dust, rather than the speed of the air like a shop vac. That's why you're using 4" hoses/pipes to move the dust, rather than the little 2 1/2" hoses like a shop vac does. Sharp turns, like 90 degree elbows can also destroy the efficiency of the dust collector. I used the plastic hoses, and the hard plastic "Y's" when I had to make bendies in the line to get it to the individual machine. Mark ------------------------------------------------------------------------------ Go from Idea to Many App Stores Faster with Intel(R) XDK Give your users amazing mobile app experiences with Intel(R) XDK. Use one codebase in this all-in-one HTML5 development environment. Design, debug & build mobile apps & 2D/3D high-impact games for multiple OSs. http://pubads.g.doubleclick.net/gampad/clk?id=254741911&iu=/4140 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
