Maybe i have very very wrong here, but i have one Curtain road at home, and it works perfect from Ikea, about 4$, (swedish croins 39skr), Ikea says it holds for 10kg, I Will try it and see how it works. Maybe to weak???. Someone else have try it?, or maybe need Harder materials so it works Better?
Thanks. 0.027" is about half of the recommendation for the LR. Powder coated steel is also a new one, but I bet it works out. It would certainly work for a smaller LR. I’m not sure it would work for a full sized one.
The price is right though. Here is the english/US page:
Interestingly, 25mm - 1.4mm = 23.6mm, which makes me wonder if it would get stiffer with some conduit inside.
I just happened to have one of those hanging on my wall and just gave it a good squeeze. I can definitely feel the metal deforming under my thumb. I had to squeeze tight, though.
Might be more crush resistant if you filled it with an expanding foam, but that gets a lot more complex for a build.
I’m also not convinced that the paint will last. It’s hard, but is it “repeated wear hard”? Although that’s less of a problem because if the paint starts wearing off the bar can simply be rotated to expose fresh paint.
Lastly, from a stiffness standpoint, here’s the graph of the bending moment of inertia for the inside rod and the outside rod, referenced against a 1" x 0.065" tube.
You can see that in both cases there’s a net drop in inertia, although relative to weight there’s an advantageous drop for the 28mm tube (64% of the inertia for 49% of the weight).
