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post #1 of 14 (permalink) Old 02-08-2015, 10:42 PM Thread Starter
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Default Advice on criss cross pattern

I am making a game board that involves multiple criss crossing dado cuts as pictured below. I made a simple edge type jig which runs in the dadoes for my router so that they will be perfectly equidistant. Before I use it on the rosewood, I tried it on some scrap pine and had a lot of chip out at the dado crosses. I was using a 3/16" straight cutter at a depth of 1/8" for 3 passes. Any suggestions?
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post #2 of 14 (permalink) Old 02-09-2015, 12:07 AM
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Trying doing all the cross grain cuts first
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post #3 of 14 (permalink) Old 02-09-2015, 06:08 AM
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Jamie

Pine is very susceptible to chipping. Follow John's advice of doing the cross-grain cuts first on a scrap of hardwood.

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post #4 of 14 (permalink) Old 02-09-2015, 06:24 AM
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Originally Posted by jemangin View Post
I am making a game board that involves multiple criss crossing dado cuts as pictured below. I made a simple edge type jig which runs in the dadoes for my router so that they will be perfectly equidistant. Before I use it on the rosewood, I tried it on some scrap pine and had a lot of chip out at the dado crosses. I was using a 3/16" straight cutter at a depth of 1/8" for 3 passes. Any suggestions?
make all your cross grain cuts 1st...
change to a best quality up spiral bit...

This would have been the week that I'd have finished chewing thru the restraints...
If only new layers hadn't been added....

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post #5 of 14 (permalink) Old 02-09-2015, 07:08 AM
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Jamie,
I know this might sound like heresy on a router forum, but I would use a table saw and dado blade to make those cuts. Much less tear out.

ďWe should be careful to get out of an experience only the wisdom that is in it and stop there lest we be like the cat that sits down on a hot stove lid. She will never sit down on a hot stove lid again and that is well but also she will never sit down on a cold one anymore.Ē - Mark Twain
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post #6 of 14 (permalink) Old 02-09-2015, 08:11 AM
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Jamie
I don't know what game that is but it looks pretty cool! Use a table saw and make the cuts rather slowly.
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post #7 of 14 (permalink) Old 02-09-2015, 09:27 AM
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For any of my inlay work I use downcut spiral bits which will eliminate any tearout even on veneers that have a very thin surface skin.
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post #8 of 14 (permalink) Old 02-09-2015, 11:40 AM
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Jamie; forget about the tearouts, more about the GAME!
How is it played?
How many people can play (I'm guessing two)?
Your picture is pretty clear on the construction, but are there plans somewhere?
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post #9 of 14 (permalink) Old 02-09-2015, 11:51 AM
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I'm liking the table saw , dado idea the best .Guys was wondering if a sacrificial piece of mdf could be placed under it so there's no tear out . Dumb idea?

I donít always insulate , but when I do .
Ok ,I never insulate
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post #10 of 14 (permalink) Old 02-09-2015, 01:21 PM Thread Starter
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Thanks for the great advice. I have to cut about 4" of the split end off of my board so I will do a bit of experimenting with a spiral bit and my dado blade and see which turns out best.

The game is Quoridor. French origin, I think. Kind of like checkers except you can place a blocking wall or move your man on your turn. Your opponent then has to go around the wall. Can be played with two to four players(each person takes a side of the board and heads for the opposite side). No plans. I found this picture online and decided to try and reproduce it.
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