Bracket for Straight Pipe

Nothing special, just the bracket ring for a straight pipe because it looks weird if the pipe is too long without support.

Original Inner diameter is 42.2mm
Scale it down for your needs.

I also added a version that should be easier to print at smaller scales.
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For example:
I want to use a 16mm pipe:

42,2mm = 100%
16mm = x %

x = (16mm*100)/42,2mm = 37,91%

Print at 37,91% Scale.
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This thing is of course meant to work with this: