Large Method Feeders
thingiverse
These are Large Method Feeders with interchangeable lead weights. A YouTube video covering their printing and construction is at: https://youtu.be/eTp5DHmDuQU
Download Model from thingiverse
With this file you will be able to print Large Method Feeders 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 Large Method Feeders.