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3D Models of Linear Actuators for 3D Printing

This collection gathers 3D models for linear actuators, from small servo-driven units to long C-beam slides and screw-driven assemblies. Most files are meant to be printed on a common FDM 3D printer and combined with standard motors, servos or bearings. It is a starting point for builders who need controlled linear motion in a project. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

このコレクションの本文は英語で書かれています。検索自体はどの言語でも使えます。

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選定基準：Polyzon編集部 · 本文の更新日：2026年10月11日

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«3D Models of Linear Actuators for 3D Printing»

The models differ mainly in how motion is produced. Servo-driven versions turn a horn or linkage into a short push, motor and gearmotor units use a lead screw or threaded rod, and belt-driven slides run a carriage along a rail or C-beam profile. Compact micro and mini designs trade travel and force for a small footprint, while long-stroke variants cover greater distances with a larger frame.

On the author's model page, look at the stated stroke length, the overall size and the number of printed parts, since some designs are single-piece and others need assembly. Check which hardware the author lists, such as bearings, rods, screws or a specific servo size, and whether supports are needed for overhangs. Photos of real prints and the material and layer settings the author mentions tell you how the parts behaved in practice.

To widen the search, try terms such as linear slide, lead screw, belt-driven carriage, linear rail or actuator mount, and add the drive type you plan to use. Related topics include CNC gantry parts, camera sliders, robot arms and motorized drawer mechanisms, which often reuse the same printed components. Combining a drive keyword with a stroke length or a servo size usually narrows the results faster than the topic alone.

FAQ

よくある質問

What is the difference between a servo-driven and a motor-driven linear actuator?
Servo versions usually give a short, fast stroke through a linkage or rack, while motor and gearmotor versions drive a screw for slower, more controlled travel. The choice depends on the stroke length and force your project needs.
Which extra parts are needed besides the printed pieces?
Most designs call for a servo or motor, bearings, rods or screws, and fasteners. The author's page lists the exact hardware, so read it before starting a print.
How do I pick the right stroke length?
Measure the distance the moving part has to travel and add a margin for the frame and end stops. Long-stroke designs need a longer rail or beam, which affects the size of the printed parts.
What should I check in the files before printing?
Look at the part count, the orientation of each piece, and whether the author notes supports for overhangs. Also compare the listed hardware sizes with the parts you already have.
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