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I have a lock miter router bit that I bought from Grizzly a while back. I can’t seem to figure out how to use it. Help and thanks in advance.
Bill
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Chances are that you run the first piece of timber flat on the router table, and the second piece of timber reared vertically against the back fence. This relies upon you getting the various settings just right so that one cut fits all so to speak. A guess on my part, but this is how many of these lock mitre cutters work. You should have received instructions with your purchase on how to use the cutter. Did you get them? If not, either experiment along the lines I indicated, or send off for the missing instructions.
*Lock miter setup can be intimidating the first time. For a good description of procedures for glue joints and edge miters see http://www.jesada.com/instructions/lock_miter.hmtl.
*The latest issue of American Woodworker has a detailed article on how to set up lock miter joints on the router table.
*With essentially nothing new nor any fixturing. Key to quality lock miter use is holding the work and preventing tearout. Cutter centerline adjustment is next biggest problem. Cut is very power hungry and should be done in stages. Would advise, once the cutting procedure is understood, that a method for holding the work and incremental fence changes be employed.
*Started using locking miter bit last week...mainly for my website since so many people had questioned how it is used. Check out the site. The main thing is to locate the center point of the bit and then line up bit height and fence so that stock's centerline meets. It worked fine after a few test cuts. and definietly a tall fence and some holddown/pushblocks are required.- see in use at http://www.woodshopdemos.com
*What is the correct way to clamp when gluing a lock mitre ? Can I use sash clamp the direction of the locking grooves (as one would clamp a tounge and groove) ?
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