The author remixed this model.
The original took 190 grams of PLA and ~5 hours to print. Since I intend to use it for light small stuff, I thought it a bit wastefull.
I filled up the original model and shelled it agian at exactly 0.8 mm. Now it takes 80 grams and 2:12, see g-code.
Add some velcro to stop it from sliding.