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OB Woodworkers Help: Claw Miter? (Fishfighter this means you)

Posted on 3/10/17 at 10:59 am
Posted by No Colors
Sandbar
Member since Sep 2010
10277 posts
Posted on 3/10/17 at 10:59 am
I have a big customer who is asking me to make this product. I own a sawmill and I currently sell him 1" boards (mostly in SYP).

He wants me to start manufacturing these engineered decorative beams. Basically a three sided box 16 feet long that will be much cheaper and lighter than actual solid lumber beams.

He is saying this is a picture of a "Claw Miter" joint. This is how he wants them put together. I am a sawmill guy, not a wood working guy. How do I do this?

Posted by Woodguy
Member since Feb 2014
227 posts
Posted on 3/10/17 at 11:03 am to
You will need a shaper with a special bit on it that cuts it in one pass. If you are going to make a lot of them you may want to add a power feeder to it.

miter bit
shaper
power feeder
This post was edited on 3/10/17 at 11:09 am
Posted by TU Rob
Birmingham
Member since Nov 2008
12724 posts
Posted on 3/10/17 at 11:07 am to
quote:

OB Woodworkers Help


quote:

Woodguy


Checks out.

A router is something I haven't purchased yet, but it is on the short list. I just haven't decided if I'm going handheld for the small projects we do, or if I want a table one. Something like a 16 foot piece, you definitely want table.
Posted by Woodguy
Member since Feb 2014
227 posts
Posted on 3/10/17 at 11:10 am to
They are handy to have. A router in a table would work too if he was only going to do a small amount of beams.
Posted by bbvdd
Memphis, TN
Member since Jun 2009
24916 posts
Posted on 3/10/17 at 11:14 am to
Like Woodguy said. A table mounted router would work but a shaper would likely be better if you are planning on doing a bunch.
Posted by No Colors
Sandbar
Member since Sep 2010
10277 posts
Posted on 3/10/17 at 11:14 am to
This is one of the largest distributors in the country. He dominates the entire Midwest. He wants me to set up a factory to do this at commercial scale. Like, running 5000 linear feet per day.

Can I do this with a molder machine? And just have the knives cut for me? Or do I need something else?
Posted by Woodguy
Member since Feb 2014
227 posts
Posted on 3/10/17 at 11:21 am to
yes i believe you could do that with a moulder.
Posted by bbvdd
Memphis, TN
Member since Jun 2009
24916 posts
Posted on 3/10/17 at 11:24 am to
Shaper with a feeder would be better.

Not sure a molder would do this. Can't see in my mind how to get the knives right unless you ran several boards through at once with them all on their edge.

ETA: Well, I'd listen to Woodguy. If he thinks it would work he'd likely know more about it than I.

This a shaper that I'd consider for something like that:
[link=(
https://www.grizzly.com/products/5-HP-Professional-Spindle-Shaper-Z-Series/G5912Z)]5hp shaper[/link]
This post was edited on 3/10/17 at 11:27 am
Posted by Woodguy
Member since Feb 2014
227 posts
Posted on 3/10/17 at 11:38 am to
I think I would talk to someone who sells those machines and get their opinion. I know it can be done on a shaper and I would definately use a power feeder for that scale of work, I'm not sure if a moulder would be better or not. I think in this case you would be looking for the fastest way of turning them out.
Posted by No Colors
Sandbar
Member since Sep 2010
10277 posts
Posted on 3/10/17 at 11:42 am to
Actually, let me come at the question another way:

Currently we have a moulder that runs S4S, pattern stock, and radius decking. I guess my question is: Can I just call my Knife Guy and have knives cut to run this stuff on my current moulders? I might run this stuff only a few days per month to start. Then change knives and run my other stuff.

Or, am I talking about a whole new setup with new machines and all that?

Also, is there a shop in Miss LA that will run the test runs for me? A few thousand feet? So that I can get product back in the hands of my distributor? Then if he moves ahead with a big order I can put in my own machinery???
Posted by No Colors
Sandbar
Member since Sep 2010
10277 posts
Posted on 3/10/17 at 11:45 am to
It almost seems like it would have to be done both from a side head and a bottom head at the same time, with each one cutting a different half of the same pattern. Looking at the photo, it looks like half the pattern gets cut from the bottom of the board and the other half from the side, and they marry together....

I have just never seen that before. And I sure as heck have never done it.
Posted by SportTiger1
Stonewall, LA
Member since Feb 2007
28499 posts
Posted on 3/10/17 at 11:45 am to
Thats a really cool looking joint. I'm sure you could make a killing doing those beams, because they put them in pretty much every new house these days.

Threads like this show me how much i DONT know.
Posted by Woodguy
Member since Feb 2014
227 posts
Posted on 3/10/17 at 11:47 am to
In that case i would definately call the knife guy and see what he says.I cant help you with the shop for the test runs,sorry.
Posted by SportTiger1
Stonewall, LA
Member since Feb 2007
28499 posts
Posted on 3/10/17 at 11:50 am to
quote:

It almost seems like it would have to be done both from a side head and a bottom head at the same time, with each one cutting a different half of the same pattern. Looking at the photo, it looks like half the pattern gets cut from the bottom of the board and the other half from the side, and they marry together....


It would have to be.
Posted by Woodguy
Member since Feb 2014
227 posts
Posted on 3/10/17 at 11:50 am to
Thats why i was saying shaper because I know you can do it in a shaper,but i think it can probably be done in moulder as well.
Posted by Chuckd
Louisiana
Member since May 2013
797 posts
Posted on 3/10/17 at 12:34 pm to
I don't know anything about molders or shapers but I know they make bit like that for a router. Just one but, one pass. Used commonly for jointing drawer sides.

Eta, rockler lock miter
This post was edited on 3/10/17 at 12:36 pm
Posted by upgrayedd
Lifting at Tobin's house
Member since Mar 2013
134817 posts
Posted on 3/10/17 at 12:40 pm to
quote:

It almost seems like it would have to be done both from a side head and a bottom head at the same time, with each one cutting a different half of the same pattern


I don't know.


Looks like it could be done by one bit. Kinda similar to this.


Posted by SportTiger1
Stonewall, LA
Member since Feb 2007
28499 posts
Posted on 3/10/17 at 12:44 pm to
Looks like the OP picture is cut differently than the link to the router bit. but the one in the link sure looks easier.
Posted by wickowick
Head of Island
Member since Dec 2006
45786 posts
Posted on 3/10/17 at 12:47 pm to
That is what I was thinking also.
Posted by upgrayedd
Lifting at Tobin's house
Member since Mar 2013
134817 posts
Posted on 3/10/17 at 12:47 pm to
Yeah, it's def not the same but it's not too far off
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