Название: Fine Woodworking Издательство: Taunton Press Год месяц: April Номер: Формат: True PDF Размер: 42 Mb Страниц: 88 Язык: English Fine Woodworking is designed for all woodwo.  Название: Fine Woodworking Издательство: Taunton Press Год / месяц: April Номер: Формат: True PDF Размер: 42 Mb Страниц: 88 Язык: English. Fine Woodworking is designed for all woodworkers (from hobbyists to professionals) looking for new project ideas, woodworking techniques and shop jigs and tips that will enhance their time in the shop. Projects are presented in a detailed step-by-step format with photos and illustrations. A full size pattern is inserted in the middle of each issue. Choosing, using, and maintaining a dust collection system in your woodworking shop is critical for shop safety. Find out all the tips and techniques to tame sawdust in your woodworking shop. You are here. Home ▸ Your Workshop ▸ Dust Collection. A dust collection idea that’s outside the box. I have a small shop and want to upgrade to a dedicated dust collection system. What about placing the dust collector outside the shop walls? Can I use sawdust in my garden? What can I do with oak, cherry, maple, and poplar chips from my dust collector?  Is it possible to have a shop in my basement and still not have fine dust appear on everything upstairs? My garage gets below zero in winter. Should I clean my dust collector's filter bag?. In , wood dust went from being a nuisance to an official health risk. That’s when the U.S. government put it on their list of “known carcinogens,” linking it to a  But it has taken our corner of the industry a while to catch up with reality—in the form of the dust collector.

A good system, however, will keep the broom and your lungs from wearing out prematurely. There are two main points to consider when choosing a dust collector.

First, figure out the air-volume requirements of the machines in your shop see the chart on p. Next, decide on what kind of hookups you are going to use: flexible hose, Woodworkung pipe or metal duct. I used the collectors with my tools, which include a in. The horsepower rating is a fairly reliable guide to the performance of a dust fine woodworking dust collection guide see the chart on p.

Hookups, however, are everything. Too much flexible hose will rob even a big collector of power. Metal duct, not unexpectedly, performs best.

Even an 8-year-old, 1-hp col-lector fine woodworking dust collection guide collect chips from machines 25 ft. Every shop is different, of course, and your results may vary, so use my findings as guidelines, not absolutes. A 1-hp single-stage collector can handle any machine in my shop The biggest sawdust producer in my shop is a in.

And even a 1-hp singlestage dust collector can handle that machine, hooked up with about 6 ft. I borrowed a new UFO, same as my old collector, to fine woodworking dust collection guide if anything had been changed. Some woodworkers buy two units and station them strategically in their shop.

Finw 82 decibels measured at 8 ft. The most economical and biggest-selling dust collectors are the two-bag, single-stage models. Single stage means the dust is sucked through the impeller fan and dumped into the lower bag.

The upper bag collects fine sawdust and lets the exhaust air back into the shop. Two-stage collectors are the next step fine woodworking dust collection guide. The motor and impeller sit atop a barrel. Chips enter the barrel colkection are directed downward, dusf the swirling air inside may occasionally fine woodworking dust collection guide smaller chips upward. A filter bag hangs off to one side and collects the finest dust. Two-stage cyclones are at the top of the evolutionary chain.

The motor and impeller sit atop a cone-shaped canister, the cyclone, which is connected to a trash can below. Chips or other large debris enter the cyclone and swirl downward, avoiding the impeller. The huide the cyclonic chamber, the greater its effectiveness at slowing down and separating large particles. Air is filtered either by a pleated internal cartridge or by one or more felt bags hanging off to the side of the machine. Internal-cartridge cyclones use the least amount of floor space.

The upper bags or fine woodworking dust collection guide filters of all collectors must be shaken out occasionally to remove fine dust. Debris entering a single-stage collector passes through the impeller, many of which are made of steel.

Even a small bit of metal, such as a screw, can cause fien spark when it hits a steel impeller. Dust-collector explosions fone rare, but the potential is there. Debris, metal or otherwise, not only makes a racket when it hits an impeller but also imparts stress on the bearing and will shorten its life.

One way to reduce the risk of fire is to choose a single-stage collector gyide a plastic or aluminum impeller.

Steel impellers are fine, however, if you avoid using the dust collector to sweep up miscellaneous debris off the floor or workbench. I also used Fine Woodworking Dust Collection Light the 1-hp collector with a PVC duct system 4-in. At that distance, because of increased resistance, the air volume drops to under cfm, less than recommended for woodworking tools.

In reality, however, one can live with that. When I hooked up the 1-hp collector to a newly installed metal duct system, with my tools in col,ection same configuration as before, I was really surprised.

The air volume was back up to cfm, very acceptable. Then I hooked up my old 1-hp collector, which is outfitted with oversized felt bags available from Oneida Air Systems that improve airflow and capture fine dustand I measured almost cfm. Hooked up to a 6-ft.

Cyclones and two-stage collectors have slightly more internal air resistance; hence the lower cfm reading. Performance ranged from good to so-so, depending on how much sawdust was fine woodworking dust collection guide spit out by my tools.

The best way to direct maximum airflow to the tool being used is to attach a blast gate to each hose. Hooked up to a PVC duct system a run of about 25 ft. A two-stage unit such as the Oneida costs almost twice as much. Penn State Industries also sells a cyclone collector. With two blast gates open, the air volume dropped and was insufficient to operate two big machines at once. More horsepower does mean more noise; fine woodworking dust collection guide registered 85 decibels at 8 ft.

The Delta comes wired for volts but can be switched over to volts. The Oneida comes without cable or switch. It can be wired to run on either current. A 2-hp unit xollection sometimes handle two machines at once Hooked up to two 6-ft. When I connected the 2-hp units to the PVC duct system, they too were robbed of considerable power, but one machine could Best Woodworking Dust Collection System Guide be operated at a time with satisfactory results.

When connected to a metal duct system, the Jet collector really moved a lot of air, cfm at the tablesaw-jointer connection after about 25 ft. With two blast gates open, the air volume was reduced to less than cfm, still acceptable for some operations. The Dust Boy produced slightly lower readings but still had more than enough power to run one tool at a time in any configuration.

If you regularly operate more than one machine simultaneously, it would be wise to look at 3-hp or bigger dust collectors. They cost more, however. Most 2-hp collectors come wired for volts. The Dust Boy can be run at either volts or volts. On the matter of choosing a dust collector, wiodworking two-stage cyclone gets my top vote. A small cyclone collector takes up less room, is easy to empty and runs very clean.

For example, on all of the single-stage units, even after running them for only an hour, fine dust appeared on the machine and in the area around it.

The Oneida cyclone, outfitted with an internal filter, rubber gaskets and wide metal ring clamps, seals better. Two-stage units such as the Dust Boy Delta also makes a two-stage collector are also nice and compact. The Dust Boy takes up 6 sq. The Dust Boy as does the Oneida comes with a Leeson motor and fine woodworking dust collection guide housing and impeller fanand the sturdy fine woodworking dust collection guide barrel holds a lot of debris, 55 gal. Before it can be emptied, however, the heavy motor and housing must be lifted off.

Removing the lower fine woodworking dust collection guide of a single-stage collector is an easy matter of loosening a band clamp. The real fun begins when you try to reattach it. The lower bag must be wrapped around the metal waist of the machine and held in place before the clamp can be cinched. Some manufacturers, such as Jet, add an elastic band inside the fine woodworking dust collection guide bag to facilitate reattachment somewhat.

The skirt and a standard gal. I just wish the skirt were made of felt rather than the more porous woven fabric. This setup will reduce the air volume. When an ad says a collector is rated at 1, cfm, what does it mean? Not much, really. Cfm stands for cubic feet per minute, a measure of the volume of air moving past a point Fine Woodworking Dust Collection 30 of reference. The cfm figure needs to be put in the context of the amount of resistance, or friction, present called static pressure, or SP.

Air moving through duct or hose encounters resistance, just as a person would slipping down finne water slide. The more bends and bumps, the slower the ride fine woodworking dust collection guide the lower the air velocity and volume. Many manufacturers rate their machines fine woodworking dust collection guide bags or duct attached. While trying out a number of dust collectors, I measured their performances under real working conditions, using flexible hose, PVC pipe or metal duct in my sq.

I also measured collectors hooked up to a straight piece of 6-in. Collectors ranging in size from 1 hp to 2 hp have impellers fans sized from 10 in. All things being equal motor speed and impeller designa bigger fine woodworking dust collection guide coupled with a bigger motor will move fine woodworking dust collection guide air than a smaller pairing.

There are some differences among collectors; to learn more, ask a manufacturer woodworkint an impeller performance chart. As soon as any collector is hooked up in the shop, performance declines in relation to the length and type of hookup. Materials that affect airflow. The metal elbow topwhich is designed for central dust-collection systems, has a gentle sweep, which lowers resistance to airflow.

Plastic PVC pipe has a tighter-radius bend and restricts airflow more. Ribbed flexible pipe also disturbs airflow, up to three times as much as metal. Hooked up to two duts. With a larger upper bag, I found that the cfm readings were not compromised. Colletion if you happen to vacuum up any offcuts, they will make quite a racket rattling around in a metal trash can.

Although many woodworkers, myself included, have used PVC drainpipe for duct without mishap, experts warn against using the material.

Oct 27,  · Synopsis: The trouble with wood dust is that the most dangerous particles—the very fine ones—are the most difficult to collect. Under 10 microns in size, they hang longest in the air, penetrate deepest into the lungs, and are the hardest for the body to eject. Our corner of the woodworking world has been slow to tackle the problem of adequate dust collection, but more and more manufacturers Author: Asa Christiana. Models tested are: Grizzly G, Rikon , Rockler Dust Right CFM, Rocker Dust Right CFM, Shop Fox W, Shop Fox W 6 tips for dust-collection upgrades May 19, Aug 15,  · economical and biggest-selling dust collectors are the two-bag, single-stage models. Single stage means the dust is sucked through the impeller (fan) and dumped into the lower bag. The upper bag collects fine sawdust and lets the exhaust air back into the shop.

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