Spline within a spline - Router Forums
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post #1 of 10 (permalink) Old 08-11-2016, 03:19 PM Thread Starter
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Default Spline within a spline

Jack Houweling posted this design for a jig to make a unique spline joint:
TenGees, Nickp and Bushwhacker like this.

It seems I never finish what I
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post #2 of 10 (permalink) Old 08-11-2016, 04:12 PM
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Thanks Jim that is a great video. I watch a lot of his stuff.

PS- Sometimes I wonder if any one on YT makes anything out of lumber that isn't scrap.

Don in Murfreesboro,Tn.

Measure once cut twice and it's still to short.
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post #3 of 10 (permalink) Old 08-11-2016, 04:22 PM
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Did something similar with a glue-joint cutter I designed.
*******************************
chessnut2, TenGees, Nickp and 1 others like this.
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post #4 of 10 (permalink) Old 08-11-2016, 05:22 PM
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Originally Posted by Quillman View Post
Did something similar with a glue-joint cutter I designed.
*******************************
Pat that is what I call real nice.

Don in Murfreesboro,Tn.

Measure once cut twice and it's still to short.
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post #5 of 10 (permalink) Old 08-11-2016, 06:46 PM
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Nice!

"The difference between genius and stupidity is that genius has its limits". Albert Einstein
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post #6 of 10 (permalink) Old 08-11-2016, 07:04 PM
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Nifty technique, Jim. Thanks for the video link.

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post #7 of 10 (permalink) Old 08-11-2016, 09:56 PM Thread Starter
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Originally Posted by Quillman View Post
Did something similar with a glue-joint cutter I designed.
*******************************
Whoa! That's nice! Tell me more!

It seems I never finish what I
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post #8 of 10 (permalink) Old 08-12-2016, 12:26 AM
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Pretty impressive Pat.

In the OP, if you look at the light colored major spline with the dark minor spline, first, it looks off balance. Second you can see the joint between the light spline and the light colored box. In the second example with the dark major spline and the light colored minor spline the dark wood hides the joint between it and the box. In the first example the shadow line of the joint is clearly visible. In the second example the dark wood hides the shadow line. For some reason the subject of shadow lines and how to use them or avoid them as necessary receives very little attention in woodworking but it is something that can make a huge difference in how something looks.
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post #9 of 10 (permalink) Old 08-12-2016, 04:02 PM
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Default A spline within a spline

Quote:
Originally Posted by chessnut2 View Post
Jack Houweling posted this design for a jig to make a unique spline joint:
https://www.youtube.com/watch?v=ej94...em-uploademail
That is a very cool gig you made. I plan to note it on Utube so I can make one of my own. Very nice idea. Thanks
David

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post #10 of 10 (permalink) Old 08-13-2016, 09:14 AM
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"Whoa! That's nice! Tell me more!"
*********************************************
Conceptually trivial, practically not so easy.
************************************************
This was an experiment done > 20 years ago.
The upright spire, tapered with saw & router, is then glue jointed. (Glue joint cutter design still proprietary).

Then random width (equal thickness) of Padauk glue-jointed (routed) and glued in place. Next, the padauk was wasted at ~ the same angle with saw leaving ~1/2" of stock. Then glue-jointed again. The cutter wastes about .25" so the result = ~.25 of squiggly line.

Next the seat rails are glued to the spire and shaped.
The seat is glue jointed & doweled to the end assemblies.
That keeps the whole thing together. And since the seat rails are relatively short, the things lives on without breaking, in spite of the x-grain assembly.

2 more examples in the stack of joints. Second from bottom, & second from top. With straight line work, the procedure is really trivial.
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