This is a 3D‑printed coffee dosing tool designed specifically for 58mm Italian-style espresso portafilters, engineered to optimize coffee powder distribution and tamping performance.

It can be scaled up or down proportionally to accommodate 51mm and 54mm portafilters.

• Purple Three‑Blade Dosing Tool
  • Function: The core component, responsible for evenly distributing coffee grounds across the portafilter basket, preventing central voids or edge buildup.
  • Design: The three‑bladed helical grooves on the top surface effectively guide coffee powder outward as the tool rotates, creating a level, uniform bed of grounds—laying a solid foundation for precise tamping.
• Orange Height‑Adjusting Ring
  • Function: Serves as a spacer, allowing for fine‑tuned adjustments to the working height between the dosing tool and the tamper.
  • Benefits: By stacking different numbers of adjustment rings according to the depth of the portafilter and the desired coffee dose, users can achieve consistent, repeatable dosing and tamping depths every time—boosting consistency and reliability in each shot.
• Green Threaded Tamper
  • Function: Used to firmly compress the evenly distributed coffee grounds into a uniform puck.
  • Design: The threaded profile on the side allows seamless integration with the height‑adjusting ring or the dosing tool, forming a cohesive unit. The anti‑slip knurling on the top enhances grip comfort and control during tamping.