Making Proprietary Generic, Reusable and Inexpensive

3D Printed Custom Refilling Funnel with Side Ports

Using a 3D printer and a few cents’ worth of plastic, one teacher can now refill proprietary printer cartridges for 1/20th the cost of a new cartridge using generic supplies. It took three tries to bypass all measures designed to prevent refilling by the manufacturer, but this involved only simple changes in a CAD program and a little time for reprints. Continue reading