For a frustration-free dosing experience, whether you slow feed or dose all at once, upgrade your Timemore Sculptor 078 or 078S with my 3D-printed single dose hopper. The most important feature it provides is an effective anti popcorn design and pairing with my optional custom silicone bellows will help you get precisely what you put into the grinder for each dose, up to 0.0g retention on each grind*, all while aesthetically matching the grinder. After nearly a year of development 40 iterations (with amazing valuable community feedback) up to launch, and another 20 revisions for the past year up to today's version, it is refined for simplicity, performance, and seamless integration with your grinder. For the Timemore Sculptor 064S, please see here! Features (New updated design as of April 24th, 2026) (New photos of most current version will be uploaded soon. Current photos are of launch version) Reliable Anti-Popcorning. Whether you dose all at once or slow feed, the beans and fragments stay within the hopper and flow into the grinder. Matching Aesthetics. The single dose hopper replaces the original stock hopper while maintaining its cylindrical aesthetic motifs, with a textured outer surface to match the grinder's surface. Strongly Anchored. Simple installation uses both stock screws (not included) to securely attach to the grinder, taking just a minute or two. Also makes use of the stock silicone screw hole plugs (not included) to plug up the screw holes. Optional Bellows. While the grinder's Rotary Knocker is already very effective at reducing retention, my custom silicone bellows can take it a step further to help bring that retention down to 0.0g* when both are used. Compact Design. All the critical features listed above, condensed into an optimally small form factor. Reduced feed speed. Slightly slows down the feed speed when you dose all at once versus the stock hopper, giving you a more consistent grind result with less fines. O-Ring Seal. Built-in groove at the bottom of the hopper with a silicone o-ring for an extra effective hopper seal. Included Lid. Helps keep the hopper dust free, like when left for an extended period of time. Lid can cover over the bellows if there is one sitting in the hopper. Approximately 40g capacity within the bounds of the hopper, with a little bit of additional capacity in the auger area. (Actual weight capacity may vary depending on coffee bean type and roast level) Compatibility Timemore Sculptor 078 (Gen 1) Timemore Sculptor 078S (Gen 1) Timemore Sculptor 078SSP (Gen 1) Note: May not work with the anti-static/anti-popcorn metal piece between the hopper and the grinder, so it may need to be removed during hopper installation (Optional silicone bellows is 100% cross-compatible with Niche Zero and Duo and several other INTROVERT Single Dose Hoppers) Not compatible with Sculptor 064 series (separate listing here) Not confirmed to be compatible with Gen 2 Tools Required For Installation Small diameter (under 6mm) phillips 1 tip screwdriver Important Note About Screws Although you can use the 2 stock screws that come with the grinder to secure this hopper, they can easily strip, so take extra caution when removing and screwing in the hopper. Use a screwdriver that fits the screw shape exactly. Do not over-tighten. In the event of needing a replacement for the screw, use a M2.5 screw that has a length of about 6.7mm in length. The diameter of the head should be smaller than 5.0mm to fit into the hole. For reasons unknown, the stock screw heads have a square shape, which makes it an extra tight fit in the screw holes of this hopper in some situations. Replacing the screw with a circular head will alleviate the situation, which you can get here Subpar Bellows Option These bellows will have a pronounced distorted form, and possibly other surface blemishes, but they otherwise are fully functional. Although some of the openings of the bellows may look far from circular, they will conform when pla