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Trying to reliably cut big holes


Inetba

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I usually build 1 box a week and all I use is a fixed based skil router , 1/4 inch upward spiral bit, and a jasper jig. I have about 120 dollars Into my setup. Works great. I do single pass with 3/4 inch mdf. For example, I spend about 2 minutes actually cutting a hole for an 18. I'd rather cut slow and do a single pass than mess with adjusting depth on my fixed base router. Total time to make a hole is less than 4 minutes including setup.

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And for the record... you dont need a plunge router to plunge into the wood for cutting out a circle with a jig.

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WOW! People are starting to come out of the woodwork(no pun intended) in support of the method I suggested, making your own jig. It doesn't matter if you use acrylic, hardboard, a plank, whatever.....as long as it holds the path of the router to the radius you need.

There is a video linked on this site of a guy using a fixed base Porter Cable router and a circle jig which illustrates just how quick and easy a person can plunge cut without using a dedicated plunge router.

I'll tell you another trick Inetba. For making your radius jig, take the existing base plate, the plastic sole, off of your router and use it to layout the mounting holes. You don't need to do any complicated measuring or layout, instead use a spring loaded centering bit to drill pilot holes in the exact location which you then open up to the correct diameter for your base screws. You can get the spring loaded bit from Lowes for about 5 bucks. Build some stuff....have some fun....build your confidence.

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Check out the video in this thread. The part which may be really useful to yourself and others starts at about 12:53. Although I don't agree with some of the other stuff this guys says and does, he does show how simply a person with a non-plunging router can plunge a spinning bit into the workpiece.

http://www.stevemeadedesigns.com/board/topic/119580-first-reveiw-of-the-toolmaker-circle-jig/?hl=%2Btoolmaker+%2Bjig#entry1683142

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Drill a hole on the inside edge of the hole you want to cut out, and then put your jigsaw blade through the hole, and start cutting.

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