Joints Anyone

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HANNAH024
Posts: 289
Joined: Fri Aug 21, 2015 9:57 am

Re: Joints Anyone

Postby HANNAH024 » Fri Oct 16, 2015 2:43 pm

4D
Now those are some AWESOME joints.
You have spent a lot of time programming them.
But, time flies when you are having fun.
Thanks for sharing.
It is what it is!
Have a great day.
HANNAH

4DThinker
Posts: 257
Joined: Wed Oct 07, 2015 10:57 am
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Creative CNC Joinery

Postby 4DThinker » Fri Oct 16, 2015 6:01 pm

The single joint that took the most time to create tool paths for was the half blind mitered dovetail. One half is done on an end already cut at 45 degrees, and the other on a square end. I also made a 5 sided box using the same joint with the dovetails laid out to spell my first name in morse code. Can't find that sample though. We've had several students with the same first name and one may have absconded with it.

All the rest mainly required a way to clamp the boards at an angle or compound angle under the router. I've got a tilting rig I can mount between my middle and front rail to clamp boards on at any simple or compound angle.

The fluting toolpath in Vectric's products is the key to any joint with a sloping face.

4D
Last edited by 4DThinker on Tue Mar 29, 2016 2:25 pm, edited 2 times in total.

4DThinker
Posts: 257
Joined: Wed Oct 07, 2015 10:57 am
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Creative CNC Joinery

Postby 4DThinker » Thu Nov 26, 2015 6:27 am

Another few I've been exploring this Thanksgiving break.
3 finger hardwood into plywood edge.jpg
3 finger hardwood into plywood edge.jpg (4.15 MiB) Viewed 5279 times

4D
Last edited by 4DThinker on Tue Mar 29, 2016 2:25 pm, edited 2 times in total.

4DThinker
Posts: 257
Joined: Wed Oct 07, 2015 10:57 am
Contact:

Creative CNC Joinery

Postby 4DThinker » Thu Nov 26, 2015 6:29 am

Pin array explorations.
Pin array test inside.jpg
Pin array test inside.jpg (4.09 MiB) Viewed 5279 times


4D
Last edited by 4DThinker on Tue Mar 29, 2016 2:25 pm, edited 2 times in total.

4DThinker
Posts: 257
Joined: Wed Oct 07, 2015 10:57 am
Contact:

Creative CNC Joinery

Postby 4DThinker » Thu Nov 26, 2015 6:31 am

End grain pins to strengthen a rabbet joint.
Pin Array rabbet test inside.jpg
Pin Array rabbet test inside.jpg (3.88 MiB) Viewed 5279 times


4D
Last edited by 4DThinker on Tue Mar 29, 2016 2:25 pm, edited 2 times in total.

4DThinker
Posts: 257
Joined: Wed Oct 07, 2015 10:57 am
Contact:

Creative CNC Joinery

Postby 4DThinker » Thu Nov 26, 2015 6:34 am

Shoulder joint. End grain pins inside.
Pin Shoulder Joint partially open.jpg
Pin Shoulder Joint partially open.jpg (3.61 MiB) Viewed 5279 times


4D
Last edited by 4DThinker on Tue Mar 29, 2016 2:25 pm, edited 2 times in total.

4DThinker
Posts: 257
Joined: Wed Oct 07, 2015 10:57 am
Contact:

Creative CNC Joinery

Postby 4DThinker » Thu Nov 26, 2015 6:41 am

Inside of that shoulder joint.
Pin Shoulder Joint Open.jpg
Pin Shoulder Joint Open.jpg (3.34 MiB) Viewed 5278 times


These pin joints cut from end grain maximize glue surface area in the joint. Area left around the holes leave the mating board strong. I've used a 3/16" end mill to cut all these samples, so the pins are at minimum 3/16" diameter to fit the smallest hole the bit could drill. The same bit has to have room to cut around them, so they are at minimum 3/16" apart.

4D
Last edited by 4DThinker on Tue Mar 29, 2016 2:26 pm, edited 2 times in total.

4DThinker
Posts: 257
Joined: Wed Oct 07, 2015 10:57 am
Contact:

Creative CNC Joinery

Postby 4DThinker » Thu Nov 26, 2015 6:42 am

The shoulder joint closed.
Pin Shoulder Joint.jpg
Pin Shoulder Joint.jpg (3.52 MiB) Viewed 5278 times


4D
Last edited by 4DThinker on Tue Mar 29, 2016 2:26 pm, edited 2 times in total.

TLHarrell
Posts: 41
Joined: Thu Oct 15, 2015 11:38 pm

Re: Joints Anyone

Postby TLHarrell » Fri Nov 27, 2015 1:25 am

Pretty cool joints. Almost makes me want to chop a hole into my CNC bench to allow me to clamp parts in this way.

I'd really like to see one of these 2x5 pin arrays done as a darker color with a through hole tenon setup in a lighter wood and sanded flush.

TLHarrell
Posts: 41
Joined: Thu Oct 15, 2015 11:38 pm

Re: Joints Anyone

Postby TLHarrell » Fri Nov 27, 2015 1:28 am

Also, a fantastic reference for CNC wood joinery is available here:
http://www.flexiblestream.org/project/50-digital-wood-joints


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