king-one-two t1_j39mefl wrote on January 6, 2023 at 11:58 PM

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

>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.

Scooter_127 t1_j3ah25y wrote on January 7, 2023 at 3:45 AM

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.

king-one-two t1_j3apyfu wrote on January 7, 2023 at 4:59 AM

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.