where to find thin wall plastic tube?
Hi, I'm building a wind tunnel, and want to achieve a more laminar flow. I've tried drinking straws but they seem to stop the air flow too much. So I made a much larger bore honeycomb with toilet roll tubes. That worked a lot better, so now I'm after something a little better looking.
Does anyone have any ideas for where to source a few meters of thin wall plastic tubing? About 25mm -> 35mm diameter. Transparent would be ideal.