工具与设备

40x20 Tube Connectors: 3D Models and STL Files

This collection gathers STL files for rectangular tube connectors, corner and foot joints, end caps, and hose adapters. It helps you find parts for building frames, carts, and tent structures with a 3D printer. You can compare how each design joins tubes and what hardware it expects. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

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Polyzon合集 · 48个模型 来自4个平台

合集是如何整理的

此合集由Polyzon根据已接入平台的搜索结果整理而成：去除重复项和没有预览图的模型，匹配度低的排在最后，其余按搜索结果顺序排列。模型归作者所有——请在各模型页面查看使用条款。

筛选规则：Polyzon编辑部 · 文字更新于2026年10月15日

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«40x20 Tube Connectors: 3D Models and STL Files»

The models cover several connection types: corner and foot brackets, end caps and plugs, multi-way joints, and threaded or barbed adapters. Some are single-piece parts, while others are assemblies with inserts, screws, or separate caps. The main differences are the tube profile they accept, the joint angle, and how the part grips or clamps the tube.

Before printing, check the author's page for the tube dimensions, wall thickness, and inner opening, because a small change in fit can affect assembly. Look at the number of parts, the hardware the design calls for, and whether the model needs supports. Also review the material and settings the author lists, and photos of real prints if available.

To narrow the search, try synonyms such as square tube connector, rectangular tube joint, profile bracket, end cap, corner bracket, and extrusion connector. Add the joint type you need, like three-way, four-way, foot, or swivel. Related terms include modular frame connector, hose barb, and tube adapter.

FAQ

常见问题

What should I measure before printing a tube connector?
Measure the outer width and height of the tube, the wall thickness, and the inner opening. Compare those numbers with the dimensions listed on the model page.
Do these connectors need extra hardware?
Many designs use screws, bolts, threaded inserts, or separate pins. Check the assembly notes and part list on the author's page.
Can I scale a connector to fit a different tube size?
Scaling changes wall thickness and clearances, so the fit may no longer work. It is better to find a model drawn for your tube dimensions.
How do I search for a specific joint angle?
Use terms like corner, T-joint, three-way, four-way, or foot connector together with the tube shape. Adding the tube profile type can help filter results.
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