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Attempted twice miter joint glue-up, after 2 days it failed the light hand force test.Thinking of beter solution, undecided yet.
-- masrol, kuala lumpur, MY.
Aug 03, 2008
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#1 posted 08-03-2008 at 09:57 PM
A spline, a small biscuit put in each face. Ryobi used to make a biscuit tool that used biscuits smaller than #30 They were intended for picture frames.
I’ve seem them around but not a lot of places. maybe Sears.
-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware email@example.com †
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#2 posted 08-03-2008 at 10:02 PM
Strange, I’ve had a few small miters that I could not spline, but they held up very well.What glue are you using?
I normally use either miter keys or hidden splines cut on the router table.
-- Somewhere, something incredible is waiting to be known. -Carl Sagan
501 posts in 2303 days
#3 posted 08-03-2008 at 10:07 PM
Try Titebond III glue – it makes really strong bonding even for end grains. Do your light hand force test after 24 hrs. By the way, from the pic of the joints, there doesn’t seem to be much glue residue on them. End grains need lots of glue.
-- The time I enjoy wasting is not time wasted
Lee A. Jesberger
6647 posts in 2616 days
#4 posted 08-03-2008 at 11:09 PM
Chuck is right, this joint looks glue starved.
If you are clamping this, it’s possible you’re tightening it too much, and squeezing out all the glue.
You did me a great service.
I was wondering where to get these mini biscuits.
There are time when these little guys are the perfect answer!
I might just buy the joiner too while I’m at it, just in case mine breaks.
-- by Lee A. Jesberger http://www.prowoodworkingtips.com http://www.ezee-feed.com
#5 posted 08-03-2008 at 11:11 PM
I used white glue, very cheap, surely not Titebond.I went to the nearest ACE Hardware store recently, saw one last bottle of Titebond II on the shelve.I just passed by since I still have half a gallon of white glue. I should have purchaced and used Titebond glue.
528 posts in 2590 days
#6 posted 08-03-2008 at 11:30 PM
Tite Bond is the answer to almost all questions. And I always put glue on my miters, give it 3-4 minutes, then put another coat of glue because the end grains soak up the glue.
-- Adrian ..... The 11th Commandment...."Thou Shalt Not Buy A Wobble Dado"
105 posts in 2453 days
#7 posted 08-03-2008 at 11:32 PM
On a joint like that I will typically “prime” the joint using thinned titebond. Brush it on and let it dry. Once dry, brush on another coat. If it soaks in, repeat the process until it does not soak in. Once it is sealed, then use the full strength glue. A biscuit, spline, or key of some sort does go a long way though.
#8 posted 08-03-2008 at 11:40 PM
Thanking you all for the tips and suggestions.Work safe.
2531 posts in 2594 days
#9 posted 08-04-2008 at 06:56 AM
All good info…..end grain is a biatch, you really have to prime it like everyone says….and try not to clamp the glue out of the joint like Lee said…I know I am guilty of over squeezing clamps! I read somewhere that you should only tighten a clamp as tight as you can make it with your opposite hand. So if your right handed make your last turns with your left hand…I do this and it seems to help a little. And for miters I like to use a ratcheting band clamp..especially in your case where you don’t have allot of flat edges to get good clamp placement.
#10 posted 08-04-2008 at 08:04 AM
Thanks Brad,Yes I think I over tightened the clamps.
106 posts in 2314 days
#11 posted 08-04-2008 at 08:15 AM
I use the same technique as tpastore. I’ve had great results using that method.
373 posts in 2442 days
#12 posted 08-04-2008 at 08:41 AM
Sounds like you’ve had some cheap glue on the shelf for a long time.Cheap glue is not always the best buy.Glue goes off after a while, starting from when you first open the container.I agree with the priming advice above – I use tape to hold the mitres together – if you need a lot of pressure your doing something wrong.
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#13 posted 08-04-2008 at 12:42 PM
hey thanks for sharing this post…it is why i love LJ’s…woodworkers helping each other…great knowledge shared here…
-- Matt--Proud LJ since 2007
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#14 posted 08-04-2008 at 01:50 PM
Great comments here already. First thing that stuck me is that the joint looks to not have even been glued. Where’d it go? Then you mention having half a gallon left. Eek, with the shelf life of glue you may just be past it’s prime. I am a fan of the smaller bottles. Yes, it is a bit more expensive that way but I usually use it before it goes bad. Or in the case that it hangs around too long I am not tempted to hang onto it since it is a smaller volume.
To those posting about sealer coats or multiple coats of glue, have you tested these joints to failure? Sounds kind of like hide glue techniques, but I hadn’t seen this done with titebond.
-- Doug, woodworking in Alabama
343 posts in 2226 days
#15 posted 08-04-2008 at 05:55 PM
I’ve had the Sears small biscuit tool for a few years, it works well , the only place I’ve found for the bisucits is at Sears. This tool is too small to use for other projests so it is sort of dedicated to light use.
-- If you say 'It's good enough', it probably isn't.
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