MOTHER'S WOOD SHAPER SURVEY
(Page 2 of 2)
Be sure of service; even well-built equipment breaks down.
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Even if you're just making an armchair analysis, you'll notice that some shapers have single-speed spindles while others offer a selection of spindle speeds. As a rule of thumb, the higher speeds are for smaller-diameter cutters, the common type used to make surface cuts for molding and trim. Slower spindle speeds are used with larger-diameter tool bits or with certain dado (groove) and joint cutters. Since horsepower requirements increase as RPM decreases, you'll need to give some consideration to the kind of work you'll be tackling before you settle upon your choice of equipment. Be aware, too, that horsepower assessment isn't necessarily consistent among every manufacturer: Some quote peak, or developed, horsepower, which only applies to short-term use. Look for a continuous, or rated, horsepower figure, or check the motor's amperage rating (10 to 13 amps equals roughly 1 horsepower at 110 volts).
In case you're wondering why shapers are equipped with reversing switches, it's to make the cutting bits more useful. Rather than keeping a large number of cutters on hand, it's often possible to merely flip the bit upside down on the spindle and use a combination of spacers or cutter collars to create a desired profile; since the bits can cut cleanly in only one direction, there has to be some provision for reversing the direction of rotation.
Before you make a final decision, investigate the safety aspects of, and availability of accessories for, the machines in your price range. An overhead ring guard is a standard piece of safety equipment with several models and can be ordered for most others. In any case, some type of cutter guard should be mandatory . . . and the adjustment controls for the two fence halves should be convenient, yet located away from the vicinity of the blades. The chance of accidents can be greatly reduced through the use of work clamps or guides available as options on most machines. Even a miter gauge is a good investment, because it'll help you control your work at a minimum of expense. And finally, check into one of the most valuable "accessories" of all: service and parts accessibility. Even well-built equipment eventually breaks down, and it's a shame to have to replace an entire machine for lack of one impossible-to-locate part!
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