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Retraction Tests and Diversion Parts: 3D Models

This collection gathers STL files built around two meanings of the same word: retraction tuning for 3D printing and parts that divert dust, air or liquid. It is useful when you are chasing stringing on a 3D printer or need an adapter that routes waste away from a tool. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

Esta colección está escrita en inglés, pero la búsqueda funciona en cualquier idioma.

Una colección de Polyzon · 48 modelos de 5 plataformas

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Criterios de selección: el equipo editorial de Polyzon · Texto actualizado el 14/10/2026

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«Retraction Tests and Diversion Parts: 3D Models»

The retraction side is dominated by test towers and calibration blocks. Towers usually isolate retraction distance and speed, sometimes paired with overhang or temperature steps, while broader test blocks combine several checks in one print. Dust extraction models are a separate group: shrouds and nozzles that fit an angle grinder and channel debris toward a hose. A third group covers diversion in the plumbing sense — funnels with internal channels, pipe reducers and connectors sized by thread or diameter.

When choosing, read the author's page rather than the preview image. Check the stated dimensions and scale, how many parts the model has and whether they assemble with fasteners or slots, and whether supports are needed for the overhangs. For test prints, note the material and slicer settings the author lists, since a tower sliced with different retraction values tells you little. For shrouds and adapters, compare the mounting diameter and hose or pipe size against your own tool before printing.

Search results mix languages, so try synonyms: retraction test, stringing test, ooze test, calibration tower, temperature tower. For extraction parts, terms like dust shoe, dust port, grinder shroud, vacuum adapter or hose reducer return different sets. For plumbing-style diversion, search by thread standard, diameter or the word elbow, wye or funnel. Adding your printer model or tool size narrows the list further.

FAQ

Preguntas frecuentes

What does a retraction test actually measure?
It shows how much filament oozes from the nozzle during travel moves. By varying retraction distance or speed between sections, you can see where stringing and blobs drop off on your setup.
Do I need a specific material for these test prints?
No single material is required, but the result applies to the filament you used. If you print the test in one material and then switch to another, run the test again with the new spool.
How do I pick a dust extraction shroud for an angle grinder?
Match the mounting collar to your grinder's spindle size and the outlet to your hose diameter. Check the author's photos and notes for the wall thickness and whether the shroud is meant to be screwed or clamped on.
Can a funnel or pipe adapter be scaled to another diameter?
Scaling changes wall thickness and thread fit along with the size, so threads may no longer match. Where the source file allows it, adjust the diameter parameter instead of scaling the whole model.
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