Octo-box by Brien Allison

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My original design of an 8 leaf (double layer) iris box. It uses a linked mechanism, similar to those expanding sphere toys, which allows it to open to a large diameter. In fact any number of leaves could be used for this type of mechanism and many variations of it could be made. The mechanism utilises printed ridged pins and holes which clip together. I have since designed many other iris boxes which you can find on my profile page including improved versions of this design: Octo-box V2 and Octo-Iris Box. The box is 80mm overall in diameter, while the container opening is around 62mm. It is opened by pushing the notches in the top of the box in an anti-clockwise direction. No supports are required for any of the parts. The hinges of the mechanism use ridged pins and holes that clip together. The ridges alternate with 0.1mm layer heights, for this reason the parts must be printed with 0.1mm layer heights at the hinge and pin sections. Using adjustable layer heights in your slicer will allow you to print the majority of the parts at a thicker layer height for speed. The effectiveness however of these hinges may depend on your specific printer and print settings, they shouldn't be either too tight or too loose. You could use contour xy compensation (ideamaker is a free slicer which does this) or alter your flow rate to adjust the fit for the hinges. The tolerance on the hinges is 0.15mm. 'top door 1' is a plain iris leaf for the top of the box while 'top door 2' is an iris…