Popular Woodworking 2002-08 № 129, страница 61

Popular Woodworking 2002-08 № 129, страница 61

Here's a little closer look at the interchangeable drop-in panels and dust-collection hook-ups for the benchtop tools.

store, you can make a wall of tools that will be uniquely your own. In fact, many folks add outlines of the tools on the wall (or on pegboard) so they know exactly where it belongs, and more importantly.. .if it's missing.

Power, Lights, Ventilation

Now that you know where everything belongs, it's time to power it up. While it's one thing to be able to check the tool manuals for the power requirements, it's quite another thing to go about hooking up that power yourself. If you're uncertain about adding new breakers or running wiring, we recommend you get a licensed professional to help you out. But you can help them out by determining the voltage requirements for your tools, whether 110 or 220 volts, and also how many amps each tool requires.

You'll need to provide adequate amperage for each grouping of tools. A contractor's saw will usually require a 110-volt,

20-amp connection, but you can use that same circuit for your planer or jointer because these machines are seldom used simultaneously. Band saws and drill presses can also share a circuit. Another way to improve motor performance and safety is to use a heavier-gauge wire (12 gauge versus 14 gauge) for your stationary tools.

Other things to include in your power requirements are lighting, bench outlets and any ambient air cleaners. Even if you're blessed with lots of windows in your shop, we all work on cloudy days and in the evenings. So proper lighting can be critical. Make sure you have plenty of general lighting throughout your shop, and add task lighting over dedicated work areas such as your workbench and tools that require careful attention to detail, such as the band saw or scrollsaw.

Don't skimp on power outlets. Heck, put one everywhere you can imagine plugging in a tool, radio or fan. Make sure there is a

good power strip with numerous outlets mounted near your bench because cordless-tool battery chargers will use them up fast.

Wood dust is bad for the lungs. By properly using dust collection to keep the larger dust particles out of the air to start, and air cleaners to pull the smaller particles out of the air, the workshop can be a safe and lung-friendly place.

Dust collection is usually set up one of two ways - either with a central collection system using metal or plastic ductwork and a single large dust collector, or with multiple dedicated collectors (though often these can be shared by more than one machine).

A central dust-collection system is a fairly involved topic that entire books have been written about (see "Controlling Dust in the Workshop" by Rick Peters [Sterling Publications]). You need to determine the amount of air movement required to collect from the many different machines, make sure your collector is capable of that performance, and locate and use blast gates in the duct work to maximize the performance of the machine. If a central dust-collection system is your preference, you should spend some in-depth research time on the topic and maybe even consult a professional for advice.

Smaller portable dust collectors are often more affordable and can provide adequate collection for a couple of machines. By using multiple hoses and closeable gates to control which machine is being collected, one machine can do double or triple duty. Each machine is rated by the "cfm" (cubic feet per minute) of air that it is capable of handling. We've included a quick reference chart that rates each machine by the suggested cfm required to extract dust. By using the chart you can easily determine the size and num

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ber of dust collectors you need.

Ambient air cleaners pull the dust from the air that the dust collectors miss. They are designed to exchange a specific amount of air determined by the size of your shop. Choose the air cleaner (or cleaners) to best serve your space, then let them go to work. Air cleaners require less attention than a dust collector, but you do need to clean or change the filters on a regular basis so they operate properly.

Another air-quality decision is finishing. Because of the volatile and harmful vapors given off by solvent-base finishing products, they will be labeled for use in a well-ventilated area. Whether that means a dedicated finishing area with appropriate air-extraction equipment, or just making sure the garage door is open and a good fan is in use, finishing should take place in an area that ensures safety from explosion, or inhalation of fumes. PW

MACHINE

DUST-COLLECTION

STATISTICS

Machine

Req'd CFM

12" Planer

350

13" + Planer

400

Shaper

400

Band saw

400

Radial arm saw

350

Table saw

350

Disc sander

300

Jointer

350

Drill press

300

Scroll saw

300

Static Press. Loss/ft.

4" Duct

.055 in./ft.

5" Duct

.042 in./ft.

6" Duct

.035 in./ft.

7" Duct

.026 in./ft.

8" Duct

.022 in./ft.