SLA 3D Printed Espresso Coffee Needle Type Distributor Hand Stirrer Tool

SLA 3D Printed Espresso Coffee Needle Type Distributor Hand Stirrer Tool

Process 3D Print, Support Removal, Post Curing, Polish
Material Resin
Quantity 1 pcs
Price Range $1-100
Lead Time 1 workdays


About Project

The Weiss Distribution Technique (WDT) is a distribution method for espresso making. Using fine needles, the barista stirs the coffee and breaks up any clumps, and evens out the density of coffee within the puck. Here is a prototype of an elegant polygon distribution tool.


  • Step 1: The distributor tool is designed by the client, who is a designer and a part-time barista. Holes in a diameter of 0.5mm should be left for the needles. All the parts need to be settled properly on the slicing software and add necessary supporting structures.
  • Step 2: When the process starts, the laser “draws” the first layer of the print into the photosensitive resin. Wherever the laser hits, the liquid solidifies. The laser is directed to the appropriate coordinates by a computer-controlled mirror.
  • Step 3: After the first layer, the platform is raised according to the layer thickness (typically about 0.1 mm) and the additional resin is allowed to flow below the already-printed portion. The laser then solidifies the next cross-section, and the process is repeated until the whole part is complete. The resin that is not touched by the laser remains in the vat and can be reused.
  • Step 4: After finishing the material polymerization, the platform rises out of the tank and the excess resin is drained. At the end of the process, the model is removed from the platform, washed of excess resin, and then placed in a UV oven for final curing. Post-print curing enables objects to reach the highest possible strength and become more stable.
  • Step 5: Finally, examine all the parts and assemble them with the needles together. Take photos of the garage kits and send it via express after the client’s permission.

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