Reply by bilyo

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Posted on Problem with dovetail jig

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959 posts in 1705 days

#1 posted 10-29-2018 02:54 PM

You asked about the size of the guide bearing. In addition to the comments above, it is important that the correct guide bearing be used to match the finger template being used. The Porter Cable jig came with several sized bearings. Use the one that fits between the template fingers with minimum side play. If that bearing is missing from the set, you will need to get a replacement. You will not get good fitting DTs without it. I’m going from memory, but I think that bearing guide you need is 1/2”. I don’t know if you can buy them individually or not, but it is a standard size and will be included in any set you buy.

Otherwise, it looks like you are close with your settings. Once you get the correct bearing, make some test cuts and make some fine adjustments in cutting depth.

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