Parametric Iris Aperture

cults3d

I've uploaded 3 sets of .stl files, including small, medium, and large irises with sizes indicated by filenames such as "ros", which stands for "radius of outer shell" in millimeters. You need one each of the shell, lid, lever, and blades in a given size. To create any custom size you like, delve into the OpenSCAD file. To assemble: Place one blade, flat side down, inside the main shell. Position it so that it's rotated to the "open" state with its most-clockwise gear engaged in the main shell's most-clockwise gear. Continue placing blades in a clockwise order at each of the gear groups inside the main shell. Each blade will overlap the previous one. Placing the final blade requires care as it must slide over the previous blade and under the first one. Once all blades are in place, lower the lever disk pegs into the blade holes carefully. Lock everything in place by screwing on the lid. Customizer makes it easy to adjust sizes, blade count, and fillet. It works well within a reasonable range of diameters and opening sizes. If Customizer is broken, you can still use the .scad file with OpenSCAD for free. With some practice, it's easy to use; start by giving yourself a few minutes to get familiar. Only change variables in the "Global" section when customizing. When done, press F5 to preview and then F6 to render your changes. Finally, find the "STL" button to export your results. If you use this design in a project, please share photos of your work.