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Isolating PC 4212 Jig Alignment Problem

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Forum topic by Divotdog posted 04-19-2013 04:17 PM 716 views 0 times favorited 0 replies Add to Favorites Watch
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Divotdog

65 posts in 2908 days


04-19-2013 04:17 PM

I decided to dust off the old pc jig – been a while since I used it and I wonder if something happened to it – it fell off a high shelf and had some junk staked on it for a while.

Anyway, the photos show the jig finger outlines (not where the actual cut would be). I did this to show that the tail board is centered on the template fingers. Hard to see in the picture but the lines at each end are the same distance from the edge of the board. That proves it was centered. And the tails always come out the correct size.

So then I adjusted the left alignment guide and made sure it was 90 degrees and, following the steps in the manual, I positioned the pins board and drew the lines again. As you can see from the pins photo the last pin would come out a little smaller.

Maybe this is a problem with the jig but it could be just another “senior moment”.

Thanks,
David The board is about 1/2 inch thick and exactly 3 1/4 wide.

The last image illustrates the consistent alingment problem. The joints do not align properly due to the end pins being cut just a little too small.

-- David, Dallas,Tx - golf weather is hot but it's cool in the shop


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