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cutting dados in veneer plywood

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rlz

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Oct 17, 2010, 8:45:30 PM10/17/10
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I am trying to cut 3/4" dados into some oal veneer plywood, but I keep
getting excessive chipout of the veneer. what is the best way to do
this on a tablesaw, or is using a router a cleaner solution? I'm
basically building cabinets out of 3/4" oak plywood and cutting the
dados for the 3/4" shelving.

Rob

k...@att.bizzzzzzzzzzzz

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Oct 17, 2010, 9:29:28 PM10/17/10
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First, you're better off asking in rec.woodworking. This group is pretty much
dead.

To answer your question, as best I can, your dado set or your saw is likely at
fault. There shouldn't be significant tear-out. That's what these blades are
designed to do. What sort of dado blade are you using?

It could also be the saw itself. If you cut a dado with a standard blade what
do the edges look like? If the saw is true there shouldn't be any tear-out
and the dado should be the right width (1/8" for a standard blade). You could
try cutting the edges of the dado with two passes of a regular blade and use
the dado set to hog out the middle. A real PITA, but...

A router can be a good solution but a 3/4" dado of any depth is a lot of
material to remove in one pass. I use both methods, preferring the table saw
for smaller pieces.

rlz

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Oct 18, 2010, 12:06:55 PM10/18/10
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On Oct 17, 7:29 pm, "k...@att.bizzzzzzzzzzzz"

Thanks for the tips. My dado set is from Mibro. It's brand new as my
old dado set was causing server chipout, so I thought I would buy a
new set. The new set is better, but it still has some chipout. I'll
try the sawblade only and see if that leads me somewhere.

Thanks again.

informer

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Oct 19, 2010, 11:20:18 AM10/19/10
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You'd be better off cutting it with a down spiral router bit.


Make yourself one of these for a router. http://www.youtube.com/watch?v=CH5dW-QcgeI

John

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Oct 21, 2010, 6:02:34 PM10/21/10
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"informer" <BorgN...@yahoo.com> wrote in message
news:89be62c0-d14f-4127...@a37g2000yqi.googlegroups.com...

> You'd be better off cutting it with a down spiral router bit.
>
>
> Make yourself one of these for a router.
> http://www.youtube.com/watch?v=CH5dW-QcgeI
>
Clean cuts with the thin veneer used on plywood is one of the toughest tests
for a dado set. That''s part of why you can buy q dado set for $250 or
more.

There are some technique things you can do.
- Zero clearnce insert to support the veneer edges
- Do a very, very shallow first cut and then do the full depth.
- Cover the area with masking tape and cut thought it - another way to
support the edges

http://www.plywood.cc/ Exporter Of Hardwood Plywood

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Dec 1, 2010, 2:08:38 AM12/1/10
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But it's easy to cut plywood in factory .

"John" <johna...@optonline.net> wrote in message
news:4cc0b862$0$7109$607e...@cv.net...


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