Filament spool scale
thingiverse
I use airtight cases for 3DJake's 250g filament spools. However, the issue is figuring out how much filament is left in each spool. To solve this problem, I created a smart scale that displays the remaining amount as a percentage. The case is designed to attach to the top right part of my Prusa i3 printer's frame using longer M3 bolts and nuts. A load cell is secured to the case with two 15mm M5 bolts, while an arm is attached to the load cell with two 15mm M4 bolts. Here are the parts I used for this project: - A 5KG scale load cell with HX711AD adapter - An ATTINY85 micro USB development board for Arduino - A 128x32 I2C blue OLED display - Optional: a 3.7V to 5V step-up voltage booster The Arduino code for this project is available on GitHub at filament-spool-scale. You can also watch a video about this project on YouTube.
With this file you will be able to print Filament spool scale with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Filament spool scale.