Living hinge enclosure fail

[Jules]

That explains it very nicely. (And a lot easier than k factor.)

And it comes pretty close to working out - I was just tacking on a couple of mm to the πr length for a hemisphere, and since the thickness of the material was running about 3.3-3.5 mm, that was pretty close to half the thickness. Maybe a little extra, but it wound up not stretching much, which kept the wood intact.

Good to know why it was working though. Now I can easily modify it for thicker/thinner materials.

This one was tough!

Chapstick Coozy

[IMG_3335] [IMG_3341] Haven’t quite worked out an easy way to assemble this one yet, since gluing it closed requires half a box of rubber bands, but it’s what I was playing with, so I figured I’d show it. Every few years I whip up a batch of lip balm for the family and give them as stocking stuffers. (In tasty grown-up flavors like Creme Brulee and Cappucino. ) But they tend to be kind of boring in the little white tubes and now I can dress them up a little. (I wonder if they …

[markevans36301]

I just wanted to add this to the discussion. K factor was originally for solid sheets so I really don’t know how much if any it applies to kerfed out living hinges.

[jwalton]

Yeah… It would be exciting trying to work out the k-factor of a sheet of wood with a bunch of holes cut in it. I suspect it would change very dramatically based on the exact shape and spacing of your living hinge holes, if it even applies at all.

[Christopher]

@jwalton

exciting

I’m not sure I would use this word to describe. “Interesting” and “rewarding” may be how I would view such work

But to each their own, right?!

[johnbrooker]

Failure is just finding another way that doesn’t work.

Thanks for that.
It will be my first text engrave for the workshop when I get back to Corinth in March.

[bwente]

I went ahead and used boxes.py to get me started and the modified in illustrator.

[shop]

you’re definitely stretching those hinges further than they should be.

[bwente]

Finally got around to staining and installing the raspberry pi. It is running motioneye and the camera is hidden in one of the holes.

[Jules]

Clever! (And sneaky!)