Double Flower Iris Box

This is a variation of my previous iris box design, the [Flower Iris Box V2](https://www.thingiverse.com/thing:3665797). This design has two layers of petals, the second layer being attached to the links and swing open in the opposite direction to the lower main petals. The box is opened by twisting the collar in an anti-clockwise direction. No supports are required (but some are recommended) for this design.

I have many other iris box designs which you can find on my [Thingiverse](https://www.thingiverse.com/brienallison/designs) and [MyMiniFactory](https://www.myminifactory.com/users/Brien%20Allison) profile pages. I have also produced a general [Instructable guide](https://www.instructables.com/Decorative-Iris-Box-Guide/) on how to print my iris boxes to a high quality.

The part files are designed for M2x6 countersunk/flathead screws [such as these](https://www.amazon.com/uxcell-Stainless-Countersunk-Phillips-Machine/dp/B01L7PCX0G/ref=sr_1_10?keywords=m2x6mm+flat+head+screws&q