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Do I need splines on these corners ?

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Forum topic by Charlie H. posted 05-30-2018 05:58 PM 640 views 0 times favorited 8 replies Add to Favorites Watch
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Charlie H.

377 posts in 1072 days


05-30-2018 05:58 PM

I have a project underway and would like to know if you think the corners on these trays need to be splined for structural integrity.

They are 9”x 4 3/4”.
One tray is 1 1/4” tall and the other one is just shy of that.
When I took the picture I thought the caliper would be readable, the sides are just shy of being 1/4” thick.
All of the mitered are tight.
Material is padauk and ambrosia maple.
The glue is Titebond II and for better or worse the dividers are glued to the bottom.

The bottom is 1/4” thick and is in a dado that is a little less the 1/8” deep.
I didn’t have to force the mitered corners to close but there’s not any wiggle in the bottom.
The bottom was not intentionally glued in but there could be some squeeze out glue in a corner or two.
The corners all closed with very minimal squeeze out though so maybe nothing got on the bottom.

The trays are part of a trinket / jewelry box project so they are not going to have a lot of wear/tear stress.

I don’t have a lot of material to work with for adding splines but I have a jig that will do the job if y’all advise splines (and I accept the advice).
If it matters I am pretty much married to 1/8” splines. It would take a lot of effort to get setup for a different thickness.

Any input is greatly appreciated.

-- Regards, Charlie in Rowlett, TX --------I talk to myself, because sometimes I need expert advice.---------


8 replies so far

View Rich's profile (online now)

Rich

4575 posts in 1011 days


#1 posted 05-30-2018 07:01 PM

I think that with tight miters and a good glue job you’ll be OK as-is. Even though it’s end grain to end grain, I generally find that my miters like that are surprisingly strong, even without splines. Considering there’s a base to keep it square and additional support from the dividers, it should be fine.

On the other hand, splines would look nice and pretty much guarantee it’ll stand up to anything.

How’s that for wishy-washy?

-- Knowledge is not skill. Knowledge plus ten thousand times is skill. -- Shinichi Suzuki

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bondogaposis

5457 posts in 2773 days


#2 posted 05-30-2018 07:22 PM

Let me ask you this, if someone were to accidentally drop that tray on the floor would the miters hold? It might happen over the course of a lifetime. I always add splines to mitered corners for insurance. Yours might hold and then they might not. I hate it when someone brings me back something that I made and it broke for what ever reason. Splines can be quite decorative if you use contrasting woods. I like wenge splines with Padauk, just a suggestion.

-- Bondo Gaposis

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Charlie H.

377 posts in 1072 days


#3 posted 05-30-2018 08:27 PM

Good feedback all around.

I don’t know if the trays would survive a drop or not and I don’t think putting them through qual test is a good idea :)

The box is much heavier and it’s built with wooden hinges, depending on the angle I could see the lid potentially getting broken off if the whole thing is dropped.
I worry about that on all my boxes but I really like the hinges.
The small metal hinges may not be any better about that though.
When I look at the trays by themselves I think they look fine.
But when they are near the box maybe they do need some additional bling.
This is what I have so far.

-- Regards, Charlie in Rowlett, TX --------I talk to myself, because sometimes I need expert advice.---------

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000

2859 posts in 1321 days


#4 posted 05-30-2018 11:42 PM

I’ve got a box (tray) with 1/8” sides. It’s only glued and has lasted over 15 years.
Not to say what would happen if it got dropped though.

You could add splines and let them show on the inside of the box. That way you could use a bigger spline.
Like so:

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Charlie H.

377 posts in 1072 days


#5 posted 05-31-2018 12:55 AM

Nice drawing.
I went back and forth on the splines and finally just bit the bullet and cut the slots for them.
After seeing the drawing I am glad I decided to put two instead of one.
They will be little but they will be there and cosmetically it will look better and match the box better.

-- Regards, Charlie in Rowlett, TX --------I talk to myself, because sometimes I need expert advice.---------

View msinc's profile

msinc

567 posts in 926 days


#6 posted 05-31-2018 12:22 PM

I think you will be glad you did. They look good, they are functional and they are a step above most of the rest of the woodworking worlds work. That said, if I had to make everything I make idiot proof I’d quit today!!!!

View Dan P's profile

Dan P

737 posts in 2314 days


#7 posted 05-31-2018 12:46 PM

Nice looking box! A spline on the tray corners would match it with the box and add strength.

To loosen the panels, tighten a hand clamp on the panel and tap the end of the clamp bar with a hammer (lightly) from differnt directions until free.

-- Daniel P

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Charlie H.

377 posts in 1072 days


#8 posted 06-01-2018 12:31 AM

I got it finished and posted in the projects.
Now that’s it done I am glad I did the splines.
I guess I was just running out of gas on this one.
I appreciate the nudge forward.

-- Regards, Charlie in Rowlett, TX --------I talk to myself, because sometimes I need expert advice.---------

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