Minimalist silicone tube holder fast

Minimalist silicone tube holder. 

Print with no top or bottom layers, 1 perimeter, PLA is fine.

Designed to print with minimal material. My first attempt was a solid plate with holes, next I tried just the rings, and finally settled on rings with connected arches between them. 

With this design the machine does less hard stops so it prints faster and better than just the rings alone and it's more rigid. Looks better too.

Trying to design this and other things like it with the philosophy of: “designed for printing”

the rings are 50mm in diameter and fit most tubes tightly, they work well as holders as is as 10mm tall. 

To use the a taller holder, I scaled X and Y by 101% and made Z 100mm.

Printed with 0.6mm Nozzle, 1 perimeter, 0% infill, no top or bottom layers 

Designed in Sketchup 2017 because that's what I know, fixed mesh errors with 3D Builder.