The DMT method uses dimethyl terephthalic acid ... For the home gamer, PETG is a common choice for 3D-printing filament, and basically combines the best properties of ABS and PLA into a filament ...
[Dave]’s giant ball uses only 220 grams of filament. A video (also embedded below) shows the design in better detail. If you’d like to experiment, we’ve previously covered how PETG’s ...