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king-one-two t1_j39aet9 wrote

Reply to comment by Scooter_127 in Slicing off SS ring by Greg_Esres

Good thing this is a sacrificial piece of wood that will get thrown out

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Scooter_127 t1_j39cpln wrote

Sacrificial or not, what good will it be when it breaks off while OP is cutting?

End grain joints are super, super weak.

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mdjubasak t1_j39mpvm wrote

I would never do this in furniture, but there is evidence that an end grain joint is not as weak as it traditional joinery topology has made it out to be. Modern wood glues are a lot better than traditional hide glues and end grain joints can be surprisingly strong. Rob cosman on the subject: https://youtu.be/l_w_or3KhH4

For a temporary, practical use, I think you could get away with it.

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Scooter_127 t1_j3agqsi wrote

I am well aware how strong modern wood glues are but end grain joints are weaker than shit. I make money woodworking, I've seen enough "idiot customer requests" that I knew would have failed joints that this idiot woodworker thought, again, a warning that they would fail would mean the customer wouldn't come back at me as though it was my fault.

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king-one-two t1_j39mefl wrote

>End grain joints are super, super weak.

They really aren't. They're a little weaker than a side-grain glue joint. Maybe.

Get a couple chunks of 2x4, glue them end to end properly with wood glue and clamps, and I bet you $1000 you cannot break that joint. The wood will break first.

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Scooter_127 t1_j3ah25y wrote

Did Google tell you that? I bet it did.

Google should also tell you how easily end grain tears right the fuck out which is why you don't make end grain joints and don't put screws into end grain.

I see I'm up against the Googlers tonight. Y'all have a good weekend, I'm gonna go turn some maple bowls.

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king-one-two t1_j3apyfu wrote

Screws and nails into end grain, never. That is super weak.

Glue into end grain... not recommended by master carpenters I guess but for holding a jig together it's fine. Especially if it's a short fat piece of wood like a chunk of 2x4. I've done it before, and when the glue cures, it's near enough unbreakable. It's not "super super weak" like you were saying... you're thinking of screws into end grain.

I hadn't bothered googling it, was just talking from experience, but since you rudely called me a googler I went ahead and found this video. https://www.youtube.com/watch?v=m7HxBa9WVis It shows that you can break the end-grain glue up at the glue joint, BUT it takes more force to break the glue joint than it does to break the wood on a side-glued joint. So I was partially wrong, the glue will break before the wood if you glue end grain to end, but it is still super strong.

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