My wife asked for something to help get the product out of her expensive hair stuff that comes in a metal squeeze tube. So I made her one. I had to donate some of my coveted green glass acrylic, but I am guessing it will be stronger than wood.
I don’t think so. I didn’t really use the “key handle” to turn it. I did manage to crack the metal tube a bit. You can see it in the photo where a bit of it is coming out from the edge. I really rolled it up pretty tight. My wife said it was okay since it was past the rolled up part and she wouldn’t have gotten it out before. Happy wife. Happy life.
They’re pretty tough - but then they’re injection molded ABS and thicker than 1/8”. The slotted part is round like a fat dowel. I’d bet that stacking and gluing three of your version together would be similar in size and strength.
I have been playing with several designs for different specifics. There are many different lengths, different materials of the “tube”, etc. I have been rolling up snack wrappers (and similar) and tying them in a knot so they take less room in the trash so that is another rabbit hole…