Using a Stacked Dado Set
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Woodworking is filled with "special tools" that are only good for one or two jobs. The only problem is they do such a good job for their special design that using alternatives can be tedious at best. Such is the case with dado blades. They are only good for taking out huge chunks wood, but in most cases trying to do this other ways takes so much time, most of us would not bother.
There are basically two kinds of dado blades. The Stacked Dado set is the most popular because in most cases is does the best job of cutting dados and rebates, but there is also something called a dado wobble wheel blade which can also be used for making dados and rebates. The problem with the wobble wheel is that the bottom of the cut is arced somewhat, and more arced as the dado cut gets wider. The problem with this arcing effect is it makes for a less than perfect fit.
Using a Stacked Dado Set
Cutting dados using a stacked dado set is not difficult, at least seemingly. The idea with any dado cut is that the piece that is to be fit into the dado cut should fit snugly in order to make it structurally sound and for the glue to work as best it can. It is IMPERATIVE that you make test cuts with your dado set before making the final cuts. If you don't you risk making cuts that are too large, and then you will a whole bunch extra work trying to make up for the mistake. The first time you omit the test cut will be the last time you omit it.
he best way to figure out the width of the cut you need to make is to measure the thickness of the shelf or other structure that you will be inserting into the dado cut. BUT DO NOT take this as the last measurement, make the test cut, try our the fit and work from there. Using a tape measure, will, in most cases not be sufficient enough to get the fit you will need, You will need a more precise measuring instrument.
Selecting a dado set can be agony for many woodworkers. There are many to choose from of varying qualities and with different features ... here are some of the things to look for ...
Selecting The Proper Saw Blade
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I often hear woodworkers say something like "I always buy good quality 60 tooth blades", or something to that effect. When I hear things like that I know that they really don't know how to select blades for the table saw, radial arm saw, sliding mitre or chop saw, because arbitrarily selecting a 60 tooth blade could in fact be the worst choice they could make, depending on what they are cutting.
Cutting Natural Woods - There are only 2 blades you need if you are working with natural wood, a ripping blade and a cross cut blade. That's it - 2 blades.
Ripping blades are used on table saws to cut along the grain of the wood. These blades will have fewer teeth ususally between 20 and 30 with 24 being the most common in 10 inch diameter blades. The other feature on ripping blades will be large gullets (the deep space between the teeth), these are used to clear out the long fibers of the wood as the saw blade moves through the wood.
Cross Cutting Blades are used on table saws, sliding mitres, chop saws and radial arm saws and are often 60 to 80 teeth in a 10 inch diameter blades. The reason a cross cut blade can get away with more teeth is because cutting across the grain doesn't require moving much wood fibre out of the way so the blade can do a better job.
Selecting The Proper Saw Blade
Understanding What Makes a Quality Saw Blade
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Spending good money on crappy power saw blades is what every woodworker wants to avoid. Some distributors of saw blades can "dress up" an inferior saw blade with a bit of paint, some cool packaging and sell a $12.00 power saw blade for $75.00 The only way of knowing what is a good buy and what is not a good buy is to educate yourself on saw blades and how to recognize the good from the not so good.
Understanding What Makes a Quality Saw Blade
Here are basically 2 ways to manufacture saw blades, the cheapest and most popular is to "stamp" the blades our of sheets of mild steel. The second way is to use a harder steel and actually laser cut the blades one at a time out of the steel.
Woodworking Work Bench
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" The first thing every woodworker needs is a work bench. Even before any tool is purchased you need a work bench. There are a million designs and every woodworker has a different work bench, even if they are based on the same plan or design. A number of our members have asked be for more details on my work bench and so that is what this video is to do, review one option in work bench design.
Woodworking Work Bench
Wood Thickness Differences / Rough to Planed
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On a trip to your local home depot or woodworking supplier you might notice the different wood sizes on display, and be scratching your head wondering what it all means. There are a couple important things to remember when purchasing stock.
2x4 vs 1 ½”x3 ½”
The first is that 1 inch doesn’t always mean “1 inch”, so while the label might read 2x4 it actually translates to 1 ½” x 3 ½”, because of dryness and milling methods. Wood tends to shrink when it’s dried and lumber mills make adjustments accordingly. That said, the length of a piece is generally not affected so a piece “measuring” 8’ is usually very close to 96 inches.
All About Radial Arm Saws
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Radial Arm Saws tend to be one of the most under-appreciated of woodworking machines which is disheartening, considering how versatile they are in the range of operations and tasks they are able to perform.
Why opt for a radial arm saw
While they may be on the pricier end of the scale, and they do tend to be both heavy and not typically fit to carry around easily. As a result, they are used mostly in professional shops where portability isn’t a priority.
That said, the variety of operations that a radial arm saw can perform from ripping to cutting bevels or miters, dadoes and rabbets, forming mouldings and in some instances, serving as router guides; is nothing short of amazing. However, like any tool there are trade-offs which come hand in hand with its versatility: difficulty in setting up cuts (as opposed to a compound miter) taking a longer time to rip stock (table saws rip faster). That said, the radial-arm saw is able to perform both these tasks, albeit a little slower than other tools, but again, it is a small price to pay.
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