Macap M4 Coffee Grinder Doser Mod in 5 easy steps.

thingiverse

Step 1: Pick up one of the most affordable 58mm flat burr grinders out there. Step 2: Completely take apart the grinder. Step 3: Swap the mechanical doser with this basic (tilted) funnel. Step 4: Enjoy an espresso shot. Step 5: Give yourself a high-five for saving money and living the ultimate 3D printing lifestyle. Visit instructions for more details. http://youtu.be/kMqYVXrc2O4 Instructions Remove all parts of the doser except the acrylic (or polycarbonate) tube. The screw for the mechanical piece takes a hex key and is accessible from the bottom panel of the grinder. If you have the automatic-off switch, which detects coffee in the doser with a sensor, remove it from the assembly (which you will not need) and store it inside the grinder. Taking out the switch itself will shut off the grinder. Use aluminum foil, as shown, to line the new doser cone. This lets the coffee flow off onto your portafilter. Use scraps of rubber bands to support the cone so that it doesn't fall off while grinding. Finally, have a brush on hand to clean up the shoot after each shot you grind!