Geodesic dome hubs

thingiverse

Geodesic domes - people adore them whether they live inside or not. Everyone marvels at Epcot's incredible architecture! \nThis project joins another strut together, creating a geodesic dome using regular drinking straws as the main structure and achieving a diameter of 3/4 meter.\ The design features the swivel arms on the hubs that distinguish it from other geodesic dome designs. Unlike fixed-angle hubs that are strictly used in one specific architecture, these hubs can be adapted to various dome styles.\n\n \n \nInstructions Making a simple plan for many possible geodesic domes, here's what you need: \nPrint - \ngenerate the geodesic joint model for a six-sided figure, as well as another one with five sides.\nAcquire drinking straws of various lengths: purchase 35 straws at 208 mm and 30 at 180 mm.\ If your straws have different diameters (check out photos to get an accurate measurement), you might need to customize the "straw_inside_dia" parameter in your "geodesic joint.scad" model. Assembly begins from the top, so start following these steps. You can see how they're laid out with the diagrams here - \nFirst Rule: a five-sided hub should never attach directly to long straws, only to short ones.\ Next, join five short straws together at one five-sided joint and each of those join six other straws via six-sided joints.\ From there add a short straw in opposite direction on every joint. Once you reach that point it looks like Assembly Picture 1 where you have connected all the 5 sided hub along with both the short straw leaving only long hub along with their related longer length, remember using six and five as one model then proceed ahead and continue until finish. To attach them all at appropriate joints and centers use an axle which are so thin, they easily break while printing - this could result ruining whole print in early stage itself.\ So better stick to w brim option with it as there's big base, not less stable than normal auto brim created by your cura program also very handy work. You can check more at www.desertdomes.com\ Now that we are all done, remember to consider when using geodesic calculator that joints here add thirty mm at the end each straws as this might slightly vary in calculation while figuring final results based above steps and calculations given