alex grams
03-20-2013, 10:28 AM
I am looking at making an adjustble jig for mortises/flattening spots for joints on round table legs, and would appreciate any input on the design.
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Several things I tried to accomplish
-Adjustable length: the top rails can be removed/changed in length.
-Adjustable height: The sides move up and down. I think though I am going to make a runner/key that is secured to one board and is maybe 1/2"x1/4" and runs in a dado on the other, that way vertical movement is guided and keeps the pieces aligned to one another
-The top is just a frame I can mount templates on the top for the router, depending on what type of cutting I am doing
-I can insert the jig onto the table without disassembling the spindle.
-For height adjustment, they only need to be rough, as the router bit travel will cover any fine tuning. I figure I can just cut blocks of rough height (1",2",3", etc) that I can put between the base and the bottom of the side boards to easily set them at a consistant height and parallel to the spindle.
-The base is keyed to slot into the width of the bed, with a piece of 1/4" metal (alum/steel) that will be pulled up snug to the T-Groove from the bed to secure the pieces from moving.
Any input/thoughts would be appreciated. I hope to make this adjustable to suit any needs in the future, but I haven't used a jig like this much, so it is tough for me to tell if there are any applications I may need it for that my design won't accommodate.
Thanks in advance.
257618
257619
257620
257621
Several things I tried to accomplish
-Adjustable length: the top rails can be removed/changed in length.
-Adjustable height: The sides move up and down. I think though I am going to make a runner/key that is secured to one board and is maybe 1/2"x1/4" and runs in a dado on the other, that way vertical movement is guided and keeps the pieces aligned to one another
-The top is just a frame I can mount templates on the top for the router, depending on what type of cutting I am doing
-I can insert the jig onto the table without disassembling the spindle.
-For height adjustment, they only need to be rough, as the router bit travel will cover any fine tuning. I figure I can just cut blocks of rough height (1",2",3", etc) that I can put between the base and the bottom of the side boards to easily set them at a consistant height and parallel to the spindle.
-The base is keyed to slot into the width of the bed, with a piece of 1/4" metal (alum/steel) that will be pulled up snug to the T-Groove from the bed to secure the pieces from moving.
Any input/thoughts would be appreciated. I hope to make this adjustable to suit any needs in the future, but I haven't used a jig like this much, so it is tough for me to tell if there are any applications I may need it for that my design won't accommodate.
Thanks in advance.