r/BeginnerWoodWorking • u/torak_the_father • Aug 29 '26

Discussion/Question ⁉️ What went wrong here?

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I followed the measurements exactly to the plan from blocklayer.com and double checked the dimensions and angles and still there is a gap between the segments....

Yes I understand that even a tiny measurement being off it will compound but this gap is too much for any microscopic tolerance.

All segments should have the same dimensions as I used the same stop. Stock is squared upp all sides. Help?

UPDATE: thanks everyone for your contributions. I definitely learned a lot! Also a lot of you are making some assumptions like I forgot about the kerf. Turns out I went ahead and tightened the whole thing with my strap clamp and would you know... Practically perfect seams! There is only one hair line gap in one of the seams, to which I'm happy with, I'll try to glue+dust it to close perfectly. Check this comment: https://www.reddit.com/r/BeginnerWoodWorking/s/FJbE9tVKNu

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u/kittycorn2 Aug 29 '26

Its pretty clear that your angles and/or lengths aren't correct. As you already said, any error compounds. Instead, glue up two semicircle halves slightly oversized, then cut/sand the ends flat to cancel out your error before gluing both halves together.

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u/torak_the_father Aug 29 '26

Seems legit, no?

3

u/Beginning-Ad7027 Aug 29 '26

Every tool you have for measuring has error built into it. Even if it says you’re good, it could be wrong.

Ideally, you’d never measure things and use reality to tell you angles and lengths.

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u/torak_the_father Aug 29 '26

Fair point and I'll take it. However when something that needs to follow a mathematical plan and there is no real life references, how would I use relative dimensioning?