2019-03-22.door-blocker

thingiverse

When taking a long walk with friends in Berlin near abandoned train tracks, we stumbled upon three big, heavy nuts used to hold down train tracks. I quickly picked them up out of curiosity for their shape and took them home. Over the next few days, I spent time removing dirt from the nuts using metal brushes and my Dremel tool. The result was three clean nuts with rust only left in the indentations and the metal clearly exposed. Using calipers, I measured the outer and inner diameters as well as height of each nut. With these measurements, I created a model in OpenSCAD that is parametric in these variables: ```openscad nut_outer_diameter = 44; nut_inner_diameter = 19; nut_height = 23; layer_margin = 5; layer_count = 3; ``` I printed the model lying on its side to avoid needing supports. This resting position also nicely displays the nuts and prevents them from toppling over. The OpenSCAD code can be found on GitHub at https://github.com/runjak/2019-03-22.door-blocker.