Woodworking Joints

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Hallettoil
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Woodworking Joints

Post by Hallettoil »

Has anyone attempted any Comb or Finger Joints using V Carve pro?

Any tips or tricks....gratefully received

Thanks

Richard

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Adrian
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Re: Woodworking Joints

Post by Adrian »

The ones that pop up on all the CNC forums every few months are these - http://www.flexiblestream.org/project/5 ... ood-joints

Not classic woodworking joints but they do make good use of the accuracy of a CNC. I've used quite a few myself and they work well.

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mtylerfl
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Re: Woodworking Joints

Post by mtylerfl »

Hallettoil wrote:Has anyone attempted any Comb or Finger Joints using V Carve pro?

Any tips or tricks....gratefully received

Thanks

Richard

Funny you should ask! Please see the following...

http://www.vectric.com/forum/viewtopic.php?f=29&t=18482
Michael Tyler

facebook.com/carvebuddy

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-ShopBot Buddy PRSAlpha CNC

rsetina
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Re: Woodworking Joints

Post by rsetina »

I made a jig for making box hinges which made it very simple to cut several at a time The only problem I ran into was that the joints were pretty tight. I haven't done any research yet, but I think there's a way to off set the cut to make the opening just a bit wider so the to parts fit tight enough, but not too loose. The ones I made were just a bit too snug.

Image

You can see how I clamped the jig to the table and was able to cut ten pieces. The only drawback is you are limited to the height of the part.

Image
Rick

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zeeway
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Re: Woodworking Joints

Post by zeeway »

That's a clever solution, but as you say, your z height limits what you can do. You may have also seen some people clamp the part to the far end of their machine, and are thus only limited by the height of the machine bed to the floor below. There are also some people that actually cut a hole in the bed of their machine to do a similar thing, but that always seemed a bit extreme to me.

Angie

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sawmiller
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Re: Woodworking Joints

Post by sawmiller »

woodmizer sawmill and joe's hybrid cnc, a good combination
In the heart of Tn

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Adrian
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Re: Woodworking Joints

Post by Adrian »

sawmiller wrote:http://johnminor.com/dwrmkr/
http://johnminor.com/bxjnt/
Look at these sites...
They appear to be hosted on the World's slowest web server...

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sawmiller
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Re: Woodworking Joints

Post by sawmiller »

yup , they used to be faster, but the guy has been hosting that site for years. for a on the flat boxjoint and free...... shrugs
i keep asking him to do a standalone, but no luck so far.
woodmizer sawmill and joe's hybrid cnc, a good combination
In the heart of Tn

theminor
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Re: Woodworking Joints

Post by theminor »

Sorry for the slow speed guys. I have no idea why things are so slow all of a sudden. I'm looking into it, but as sawmiller said, it is free so I am doing the best I can. I have considered for a while now converting this to a gadget for Aspire, but it will take some time. Certainly this would be helpful for some in terms of incorporating these into larger projects.

Anyway, the site is still usable right now, just slow. Hopefully I'll get the speed fixed soon...

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TReischl
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Re: Woodworking Joints

Post by TReischl »

Definitely can make some interesting joints using a CNC router.

But making typical dovetails, like for a bunch of drawers is still easier and faster using a box joint jig.

I have had the one below for quite a few years now, it is my go-to tool when I do drawers. They typically cost about $120.
Capture.JPG
One interesting side note is that it is entirely possible to make custom dovetail jigs to do things like uneven spacing, mixed sizes in one joint, etc. Those templates are easily made on CNC routers.

Hallettoil
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Re: Woodworking Joints

Post by Hallettoil »

Thank you all for your suggestions.

At least...the old grey cells get a kick start


Richard

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Re: Woodworking Joints

Post by 4DThinker »

Half laps (all variations), Mortise and tenon (if your can imagine each part as 1/2 while cutting, then glued back together when done), miters, etc., are possible and relatively easy on a CNC. I've done 1/2 of a sliding tapered dovetail slot. Both sides of a box joint can be done laying flat if you don't mind the half-circle extra thanks to the round bit. The trick is to imagine something creative to do with that half circle. If the fingers are wide enough (relative to the bit being used) that half circle can be enlarged to fit a round wood plug (less the small flat intersection with the finger). Obvious rabbets and dados as well.

CNC-cut joints will tend to have a unique look thanks to the strategies used. I'll sometimes put plywood together with CNC-cut corners, but then fill and cover with veneer.

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mezalick
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Re: Woodworking Joints

Post by mezalick »

I was experimenting with making window frames and came upon a nice wood joint on the internet.
A puzzle joint.
The first few pictures are the real, real rough trials but you can see the finished effect.
Toolpaths worked up in Aspire and cut on my CNC machine
Just something different.
Michael
Attachments
puzzle-joint-3.jpg
puzzle-joint-4.jpg
puzzle-joint-5.jpg
puzzle-joint-6.jpg
Michael Mezalick
https://www.youtube.com/user/mezalick
mm@mezalick.com

MarkJohnston
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Re: Woodworking Joints

Post by MarkJohnston »

Very nice Michael, it looks like a strong joint.

Mark

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Re: Woodworking Joints

Post by 4DThinker »

Old post, I know. But now that I have a CNC with an open frame it has led to all sorts of creative joinery that requires clamping boards vertically or at an angle/compound angle to the spindle.

Rather than repost here you can see photos I posted on this forum that is for the CNC brand I use.

http://www.probotix.com/forum/viewtopic ... 7&start=10

More on the following pages of that link. All were drawn up in VCarve or Aspire. Some much more complicated to toolpath than the others. Most were done as samples to show my furniture design students. Some specifically as solutions for their particular design/construction problems.

I couldn't post .CRV file there, but if anyone here is interested in a specific joint let me know and I'll post the Aspire or VCarve file for them here.

4D

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