Printer Spool Scale (HX711)
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A scale case for a Prusa Mini spool holder. Can be connected to RaspberryPI and used by OctoPrint plugin.
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Model information
- Source
- Printables
- Category
- Other Printer Parts & Upgrades
- License
- Creative Commons — Public Domain
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.