Semi-circular batten/stiffener for vent on pyramid tent

another option i have used is cord from the weed-eater (thanx Roger C for that idea) just like your tubing it can be stuffed and it pops out once unstuffed.

-Tim

I used plastic (as opposed to plastic coated steel) 'boning'. This stuff is normally used in dressmaking for wedding dresses and theatrical costumes. It is light and about the right stiffness/flexibility and comes in various widths. It's name comes from when whale bone was used in Victorian times.

I've used weed eater cord, which worked pretty good

But, it comes so tightly wound on the reel that it's a little difficult to get to straigten out enough to make a good vent stiffener.

But, I got it to work.

You can take a long length, stretch it out, maybe in the sun, leave it for a few days, straightens it a little.

But, I found a small vent doesn't really do that much. To prevent condensation you need a large vent, like leaving the door open, that's better.

> I used plastic (as opposed to plastic coated steel) 'boning'.

I once suggested a friend used tubes used to hold surface-mount (SO) ICs for boning, as they're light, flexible, stiff (being a tube), and, above all, cheap, if you know an electronics manufacturer…

zip ties work well

+1 on zipties