3D preview of SG90 Servo Crank Arm
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Interactive 3D model of SG90 Servo Crank Arm

Brackets and mounts

SG90 Servo Crank Arm

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Bounding box
39.0 × 14.0 × 6.0 mm
Engine
Precision B-rep
Parameters
10
Published
September 14, 2026

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The prompt

Create a servo crank arm for SG90 micro servo. Dimensions: - Radius: 28 mm - Thickness: 4 mm Features: - Central SG90 mounting hole - Three M3 holes located at: 20 mm radius 24 mm radius 28 mm radius Rounded edges. PLA printable. Generate as a single solid part.

Parameters

NameValueRange
Thickness4 mm2 – 8
Arm Width10 mm6 – 20
Hub Diameter14 mm10 – 20
SG90 Mounting Hole Diameter5.8 mm4.8 – 7
M3 Hole Diameter3.2 mm2.5 – 4
First M3 Hole Radius20 mm12 – 26
Second M3 Hole Radius24 mm16 – 30
Third M3 Hole Radius28 mm20 – 30
Arm Overall Length32 mm28 – 40
Edge Fillet Radius1 mm0.2 – 1.5

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.

SG90 Servo Crank Arm - Free CAD Model (STEP, STL) | TextoCAD