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AJ-SR04M Ultrasonic Sensor 3D Models and STL Files

This collection gathers printable parts built around the AJ-SR04M ultrasonic distance sensor: brackets, housings, beam cones and adapters, along with setups that pair the module with small microcontroller boards. It helps when the sensor has to be fixed to a surface, a pipe or a container instead of sitting loose. Most files are shared as STL for 3D printing. 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7个平台

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筛选规则：Polyzon编辑部 · 文字更新于2026年10月13日

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«AJ-SR04M Ultrasonic Sensor 3D Models and STL Files»

Mounts range from hinged brackets to arms that hold the sensor against a drum rim, and they differ mainly in how the module is fixed and at what angle. Enclosures and covers protect the board side of the sensor, while cones and narrowing adapters shape the acoustic path or reduce the opening in front of the transducer. A separate group of files deals with wiring the module to a small development board, including cases that hold both together.

When choosing a file, look at the dimensions and scale the author lists, because the transducer head and the circuit board differ in size between variants. Check how many parts are involved, whether they screw, snap or glue together, and whether the author expects print supports. Read the material and settings notes, and look at photos of finished prints to judge wall thickness and how the sensor seats in the holder.

Search results for this sensor overlap with the waterproof variant of the same family, so trying both names widens the set of mounts and cones you see. Related terms such as ultrasonic distance sensor, transducer holder, beam cone and sensor housing also bring up parts that were not labelled with the module name. If you need a close fit, add the object you are mounting to, for example a pipe, a tank or a robot chassis.

FAQ

常见问题

How does the AJ-SR04M differ from the waterproof sensor in the same family?
They appear together in many of the same mount and cone files, but the transducer head and the cable arrangement are not identical. Compare the dimensions listed on the model page with your own module.
Do these parts need supports when printed?
It depends on the shape. Cones and brackets with overhangs often do, while flat plates and simple covers usually do not. The author's page normally states what was used.
Which material is used for sensor housings that stay outdoors?
Parts exposed to weather are often printed in PETG or ASA, while indoor brackets are commonly made in PLA. Check the author's notes for the material and settings they list.
Can these parts be used with a different ultrasonic module?
Some mounts are shaped around one specific transducer, others have a more open cutout. Compare the listed dimensions with your module before printing.
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