cross-posted from: https://hexbear.net/post/5506486
Decided to make a sierpinski’s tetrahedron as a first REAL project! I built a shitty angleiron workbench (with an old door ziptied onto it as the tabletop) before but I’m actually trying this time so it’s different
170 welds completed so far
!! So, only 346 left to go!!..
This was a really good idea until I remembered how complex fractals are, like GIRL, DUH, fuck was I thinking hahaha
Its REALLY scuffed though, I’m talkin like using my stick welder to melt a half inch off the end off of the pieces I had precut to make it shorter so it will fit in the actual dimensions needed, I’ve been holding the smallest (~2") pieces with a wrench and holding it in place freehand. It’s been a lot of fun so far, and I’m definitely improving as I go, I weld my welding stick to my stock way less often now, and achieve arc much more reliably too, which is cool to see my own progress within the project!
I hurt my shoulder a bit ago so I haven’t been able to do much lately, but welding is pretty low impact in that I mostly just sit on a folding chair in my driveway next to my shitty workbench lol
Have some more views!
Awesome! How heavy is this thing, it looks big?
Did you need to calculate the bond lengths inside of it, and measure/use tetrahedron angels? Or did you eyeball it?
Thanks!
I carefully measured and arranged the outermost tetrahedron, from there I marked the midpoints of each bar and eyeballed it from there getting smaller and smaller. The smallest bars are actually quite a lot shorter than the distance they fill, with the gaps filled with weld because I was too lazy to do it precisely lol. If you had it in your hands you’d easily be able to see how off grid most of the bars are, but in totality it works pretty well
It probably weighs around 30 pounds I’d guess? somewhere around there
