July/August 2007
Volume 50
Issue 4
Archived Project Plans
IN THIS ISSUE
Project Articles
woodworking Plan Low-Cost Outdoor Storage
woodworking Plan Luggage Rack
woodworking Plan Castle Puzzle
 
DEPARTMENTS
woodworking Plan Owners Gallery
woodworking plans Letters from Owners
 
Academy Notes
ROUTING: Professional-looking joinery & accents for your projects
 
Service Pointers
Bandsaw Service Pointers
 
What's New
Kreg Deluxe Bandsaw Fence
 
EDUCATION
woodworking plans Find A Shopsmith Woodworking Academy Near You
woodworking plans National Woodworking Academy in Dayton, OH
 
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woodworking plans Online Accessory Catalog
woodworking plans Request Printed Accessory Catalog
 
LINKS
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woodworking plans Free Woodworking Tips
 
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Shopsmith, Inc.
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Notes from the Shopsmith Woodworking Academy

Continued...

If you’re looking for one hand-held router to hopefully cover all of your woodworking requirements, the General Purpose model is probably going to be your best choice. If nothing else, it will certainly be the best to get started with. Some brands offer optional plunge bases for their general-purpose routers that you can purchase and use with your existing motor at a later date, should the need arise.
Before you purchase a hand-held router, be sure to check out the kinds of accessories
that will work with the model(s) you’re considering. Are there edge guides, vacuum pick-ups, dovetail jigs, circle-cutters, pantographs, lettering templates and other accessories available for this model ?

Router Bit Materials
There are three basic types (not profiles) of router bits available for today’s woodworker:

High-speed steel bits…are the least expensive of all available bits…but tend to dull quickly after only minimal use. They’re not the best choice for use with laminates or for cutting particleboard, MDF or other composites containing bonding agents or polymers that can quickly dull cutting edges.

High-speed steel bits with carbide cutting edges…are normally priced at double or more the cost of high-speed steel bits. However, their carbide cutting edges will hold an edge up to 25 times as long…and…they’ll easily tackle composites such as those mentioned above without premature dulling. IMPORTANT NOTE: Look for high-quality bits from known manufacturers. Poorly made bits have bad welds adhering the tips to the shank. When these poor welds break loose, they send dangerous pieces of carbide flying through the air at tremendous speeds !

Solid carbide bits…are extremely expensive. However, they’re clearly the BEST choice for frequent, hard use without dulling. Like their carbide-tipped counterpoints, they’ll hold a sharp cutting edge far, far longer than high-speed steel. And, since they’re made from solid carbide, there’s no fear of a cutting tip coming loose.

Piloted or Non-Piloted Bits – Which Is Right For What?

BitsPiloted router bits use a pilot below the cutting edge to guide themselves along a straight or curved edge of a workpiece…maintaining a constant sideways depth-of-cut as the cut progresses. They’re typically used for edge profiling where the entire edge of the workpiece is not removed, giving the pilot something to guide against.
Inexpensive, solid steel piloted bits are acceptable for limited use on soft woods, as long as the steel pilots are smooth and free of pitch or burning. It’s also important that you keep the bit moving through the cut at the correct, constant speed to avoid burning the workpiece.
Ball-bearing piloted bits will produce the smoothest, most consistent, burn-free results without marring the workpiece. They feature a ball-bearing pilot that rides along the workpiece edge as you make the cut.

Non-Piloted bits have no pilots to guide them through their cuts. The best examples of these are: Regular, straight router bits (1/4”, 3/8”, 1/2”, etc.); core-box (or cove) bits; veining bits; dovetail bits; Ogee bits, etc.
Since they have no pilots to guide them, they’re either used for freehand routing -- or for edging or joinery applications, where a routing table with fence, overarm or other fixture of some sort is employed to control the cut.

Continue...


 
 
 
     
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