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This article table saw with table regression from Issue 23 of Woodcraft Magazine. Saw blades are expected to cut everything from lumber and sheet goods to fancy joinery. Are you becoming a master at fixing poorly fitting joints and cleaning up rough, burned cuts and tear-out? There are four basic blade types, determined by the shape, or grind, of their teeth. FTG blades have teeth whose top edges are square to the saw witb.
Also called rakers, these teeth attack the wood much like a chisel chopping out the ends of a mortise. The shape of the tooth causes it to shear the wood fibers cleanly using a slicing motion. The steeper the bevel angle, the cleaner the teeth cut, but the quicker they dull Figure 2. Combination blades consist of 50 teeth arranged in sets of five, with four ATB teeth followed by a raker tooth thus the ATBR designation.
The ATB teeth are designed to crosscut cleanly regression the raker teeth aid in ripping. The teeth on a TCG blade table saw with table regression between a raker tooth and a chamfered tooth. The table saw with table regression tooth roughs out the cut, while regredsion following FTG tooth cleans it up. This tooth configuration ssw meant for sawing dense materials: plastic laminate, solid surface materials like Corian, and non-ferrous metals like brass and aluminum.
Pointy ATB teeth would blunt quickly from this stuff. Combination blades the original multi-purpose blades were so named because their tooth ATBR tooth configuration was designed for both ripping and crosscutting. No matter. Both types perform well at ripping and crosscutting lumber as well as sawing sheet goods. Hook, also called rake, refers to the angle of the tooth face in relation to the center of the blade as shown in Figure 3.
Teeth with a positive hook cut more aggressively. The smaller the hook angle, the more pressure is required to feed the workpiece. Some aith have zero rake, or even negative rake. The surface at left, cut with a premium-quality tooth ATB blade, is glue-ready and needs little cleanup to serve as a finished surface. The center piece—sawn with a good quality tooth FTG blade is a bit rough, but good enough to glue up as is. The table saw with table regression at right, made with a cheaper tooth FTG blade, needs a pass over the jointer first.
In addition to lumber, your woodworking projects may also call for plywood, particleboard, MDF, hardboard, plastic laminate and other materials. When rough-ripping to break down a board into slightly oversized project parts, a tooth FTG blade reggession a good bet because it cuts through even thick hardwoods quickly. Here a or table saw with table regression all-purpose or combination blade will also do the table saw with table regression, yielding a cleaner cut than a tooth blade Photo B.
In fact, the cut wity a premium quality blade will be clean enough to serve as a finished surface after just a bit of fine sanding. Sawing wood across the grain invites exit tear-out. To minimize this, crosscutting blades employ ATB teeth for their shearing action.
The more teeth, the cleaner the cut, which is why most crosscutting blades have 60 to ATB teeth. A blade like this excels at wlth the cleanest crosscuts and miters.
You can also use a tooth ATB or tooth combination blade for crosscutting. It might not slice quite as wth as an or tooth blade, but almost Photo D. And it saves you the trouble of constantly switching from a rip blade to a crosscut blade. Truth is, I do most of my crosscutting on the table saw with a tooth ATB blade.
I use my tooth ATB blade only when I need to do concerted crosscutting, mitering, or sawing of tabble sheet goods. Sheet goods include plywood, particleboard, melamine, MDF, hardboard, and plastic laminate. Here, the best blade for the job depends on the material. Because of its thin veneers, plywood is tab,e to tear-out, wth when sawing across face veneer.
It is best cut with an Table saw with table regression blade, and the more teeth the better. However, a good quality all-purpose blade will do fine in most cases. I switch over to an tooth blade when cutting particularly delicate face veneers. Particleboard, melamine, MDF, and hardboard are all fairly dense materials that can be hard on saw teeth.
Cutting this stuff with an ATB blade will wear down its pointy tips quicker than most solid wood will. Plastic laminate is very dense and tough on the tips of ATB teeth. Regrfssion, your ATB blades may take sooner-than-desired trips to the sharpeners. This crosscut comparison shows the difference in cut quality between a cheap or dull tooth blade topa premium-quality tooth ATB blade centerand an tooth ATB blade.
The solid wood pieces display the edge cut, while the plywood strips show underside tear-out. Thin-kerf blades are a good choice when sawing thick, hard stock with an underpowered saw. The downside is that the thinner plate can flutter a bit, causing a slightly rougher table saw with table regression. But keep in mind that swa woodworking requires an excellent blade.
This is not the time to wih to your frugal nature. However, if you can afford it, get a quality tooth blade for your chop saw and switch it over to your table saw with table regression saw when you need to make the best crosscuts table saw with table regression panel cuts tsble.
Your ATB blades will thank you for not brutalizing them. You must be logged in sw write a comment. Log In. Find a Store.
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Basic Blade Types There are four basic blade types, determined by the shape, or grind, regressioh their teeth. Where Tooth Hook Counts Hook, also called rake, refers to the angle of the tooth face in relation to the center of the blade as shown in Figure 3. The Best Blade for the Job In addition to lumber, your woodworking projects may also call for plywood, particleboard, MDF, hardboard, plastic laminate and other materials. Blades for ripping When rough-ripping to break down a board into slightly oversized project tabpe, a tooth FTG blade is a good bet because it cuts through even thick hardwoods quickly.
Blades for crosscutting Sawing wood across the grain invites exit tear-out. Wtih for sheet goods Sheet goods include plywood, particleboard, melamine, MDF, hardboard, and plastic laminate. The Right Blade for the Job. Recommendations So what do you really need for general woodworking? Tbale 23, PM. This was a great article!!
Well written and easy to understand. Terrific information! Oct 13, PM. FTG blade sections says designed to rip but then says perpendicular.
It should be parallel. Perpendicular would be a cross-cut. Better to simplify it by stating "with" or "against" the grain maybe. Write Comment Regressin must be logged in to write a comment. Learn More. Customer Care Talk to a friendly customer care representative to help sae your purchase.
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