OpenSCAD - Kitchen roll holder

Tray rack to hold HT tubes with diameter of 32, 40, 50, 75, 90, 110, 125, 160 to store typical kitchen rolls in your favorite combination.
I use it for my parchment paper, aluminum foil, cling film and kitchen paper.
As screws I use pan head screws DIN 7981 with 3.9mm diameter.

* HTEM pipe DN 50: https://www.hornbach.de/shop/HT-Rohr-DN-50-150-mm/262679/artikel.html
* HTEM pipe DN 125: https://www.hornbach.de/shop/HT-Rohr-DN-125-500-mm/8534799/artikel.html
* Screw DIN 7981 3.9mm: https://www.hornbach.de/shop/Blechschraub-Linsenkopf-m-Kreuz slot-DIN-7981-3-9x16-mm-galv-verzinkt-100-Stueck/3830985/artikel. html

Please take also a look at: https://www.printables.com/de/model/362089-silvercrest-ian-87793-kitchen-scale-holder