About this 3D model
This is a scale case for a 5kg scale Module and the HX711 pcb. It can be connected to a RaspberryPI and used by the Octoprint Plugin “Filament Scale Enhanced” ( https://plugins.octoprint.org/plugins/filament_scale/ ) The filament spool holder can be set on top. Like this one from Copanko: Spool holder for Prusa MINI Flexible Wiring should be like this: Raspi HX711 Scale Modul VCC 5V ----- VCC | A+ ----- green GND ----- GND | A- ----- white SCK (Clock) GPIO20 ----- SCK | E- ----- black (GND) DO (Data) GPIO21 ----- CO | E+ ----- red (VCC) Scale modul and HX711 can be found on e.g. Amazon or cheeper on AliExpress You also need 4 M4x16 screws to mount the scale module. You can use 2mm thick foam rubber (4x 14x16x2mm) as soft feets.