The scripts are pretty much like the old those https://www.thingiverse.com/thing:3258256
I just added flat pattern.
Scripts allow numerous variations (by changing N, D, twisted and/or Rout variables) -
the related formulae and pattern samples could be found in https://en.wikipedia.org/wiki/Rose_%28mathematics%29 - I uploaded ready STL files for small subset only.
I set 1mm bulb wall thickness because my old printer has 0.8mm nozzle. Now I tested that 0.5mm thickness is Ok for 0.4mm nozzle. So I recommend to regenerate STL files with thickness matching your printer.
| f50_7_5.stl | 2.5MB | |
| flat.scad | 718.0B | |
| flat3by5.stl | 2.3MB | |
| flat3by7.stl | 2.9MB | |
| flat5by3.stl | 1.5MB | |
| flat7by5.stl | 2.2MB | |
| spheric.scad | 1.1KB | |
| spheric5by3.stl | 9.7MB | |
| spheric7by5.stl | 12.0MB | |
| t40_7_5.stl | 48.2MB | |
| twisted5by3.stl | 29.8MB | |
| twisted7by5.stl | 40.9MB |
