Tools & equipment

Coffee Grinder Gear and Burr Holder STL Models

This collection gathers STL files for coffee grinder gears, burr holders, cups and dosing funnels. It helps when a small plastic part inside a grinder breaks and a replacement is hard to find. Check dimensions and tooth count before sending a file to a 3D printer. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

A Polyzon collection · 47 models from 3 platforms

How this collection is put together

Polyzon assembles this collection from search results on the connected platforms. Repeats and models without a preview are removed, weak matches go to the end, and the rest keeps the search order. Models belong to their authors — check the terms on each model's page.

Selection rules: the Polyzon editorial team · Text updated 2026-10-14

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About the category

«Coffee Grinder Gear and Burr Holder STL Models»

The models range from replacement gears and bevel gears for specific grinder families to burr holders, cups and dosing funnels. Some parts are simple single-piece gears, while others combine a holder, shroud and funnel into one printed assembly. Manual dispensers and drill adapters also appear as ways to drive a grinder without its original motor.

When choosing a file, compare the tooth profile, shaft diameter and mounting points with the broken part. Look at the author's photos of real prints and the listed material, layer height and infill. For gears under load, the orientation on the build plate and the choice of filament affect dimensional accuracy and surface finish.

To refine the search, try terms such as grinder gear, bevel gear, burr carrier, burr holder, dosing funnel and portafilter funnel. Related topics include coffee grinder stands, replacement cups, tampers and manual dispensers. Adding the grinder type or part position, such as upper burr or drive shaft, can narrow the results.

FAQ

Frequently asked questions

How do I identify the correct gear for a coffee grinder?
Compare tooth count, outer diameter, bore size and the shape of the shaft or keyway with the original part. Photos and dimensions on the model page are more useful than a general grinder name.
What material works for a replacement grinder gear?
The author's page usually lists a suggested filament and settings. Rigid filaments are common for gears, while some holders and funnels may be printed in other materials depending on the load.
Why do burr holders and dosing funnels need different print settings?
Holders often need precise fits around the burr and shaft, so clearances matter. Funnels are usually larger and may tolerate thicker layers, but the opening should match the portafilter size.
Can a printed part replace a metal gear?
Printed gears are common for low-load positions, while high-torque areas may need a different approach. Check the model page for dimensions and the author's notes before printing.
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