When the filament reel of a 3D printer begins to decrease, it becomes difficult to tell whether the remaining filament in the reel will be sufficient for the next print.
Here is a weight scale that allows you to estimate how much filament remains in the printer roll and helps to predict whether it will be sufficient for the print you are about to undertake.
The particularity of this realization is that it is housed between the support bracket of the filament roll and the 20x20 mm profile at the top of the Ender-3. The power supply is taken from the 24V rail from the nearby power supply.
A full description of the project is avaiable at http://www.steila.com/blog/index.php?controller=post&action=view&id_post=27
Remember to come back and post what you've printed as Make.
It's good for the designer and the community (that means you)!
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