No glue required


#1

I was going through some of the free designs I had downloaded a while back. One had an interesting joining method. Using friction instead of glue. I figured I’d work on it a bit and see if I can make something a little better.

Introducing, self locking tabs. Just slide together until they pop into place.

Still needs a bit of tweaking, just a tad more play than I was hopping for.

Here’s the SVG if someone wants to play with it too.

Locking Tab Test


#2

Very clever! :grinning:


#3

I have seen a lot of variations on locking spring joints for 3D printing and have used a few in the past. Sort of forgot about them. Lots of ‘Oh Yeah’ happens when lurking here, lol.

I will have to go back and examine them now I imagine, since Glowforge seems to handle complex rather nicely and the living hinge concept makes many of them feasible with wood.

I like the simplicity of your find and it would work well if excess overhang is not an issue.

Below is a fast and dirty locking spring joint concept sketch. I have a pre-GF file in the works that is using slots for joinery, but may rethink it using a spring joint idea instead.


#4

Thank you. I look forward to playing with this.


#5

Wow that’s really great! Thanks for sharing the technique!


#6

Don’t forget about the Stanford snap fit.

https://tltl.stanford.edu/project/universal-snap-fit


#7

Neat! Maybe next you’ll adapt these tabs for non-orthogonal angles? :slight_smile: