3D preview of Arduino Smart Door Lock Assembly
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Interactive 3D model of Arduino Smart Door Lock Assembly

Brackets and mounts

Arduino Smart Door Lock Assembly

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Bounding box
104.5 × 45.0 × 31.0 mm
Engine
Precision B-rep
Parameters
36
Published
October 3, 2026

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The prompt

Generate a parametric 3D CAD assembly model for an Arduino smart door lock mechanism. The model must include: ​A base mounting bracket featuring a central rectangular cavity (22.5 mm x 12.0 mm, 22 mm depth) designed to securely house an SG90 micro servo, complete with side mounting tabs and 2.5 mm screw holes. ​An integrated structural guide and slot next to the servo designed to hold and align a standard metal slide bolt / latch mechanism. ​A mechanical linkage arm connecting the SG90 servo horn to the sliding metal bolt, designed to push and pull the latch smoothly for locking and unlocking operations."

Parameters

NameValueRange
Base Length80 mm60 – 120
Base Width45 mm30 – 80
Base Thickness10 mm4 – 20
Servo Cavity Length22.5 mm18 – 30
Servo Cavity Width12 mm8 – 20
Servo Cavity Depth22 mm15 – 30
Servo Cavity Center X25 mm15 – 45
Servo Cavity Center Y22.5 mm15 – 35
Servo Housing Wall5 mm2 – 10
Servo Housing Floor3 mm1 – 6
Guide Slot Length50 mm30 – 70
Guide Slot Width13 mm8 – 18
Guide Slot Depth6 mm3 – 10
Guide Slot Center X65 mm40 – 80
Side Tab Length12 mm6 – 20
Side Tab Width18 mm10 – 30
Side Tab Hole Diameter2.5 mm1 – 5
Servo Body Length22.8 mm18 – 28
Servo Body Width12.6 mm8 – 16
Servo Body Height22.5 mm15 – 30
Servo Output Shaft Diameter4.8 mm2 – 8
Servo Output Shaft Height4 mm2 – 8
Servo Horn Diameter20 mm10 – 30
Servo Horn Thickness2 mm1 – 5
Horn Linkage Hole Offset8 mm3 – 15
Horn Linkage Hole Diameter2.5 mm1 – 5
Linkage Arm Length30 mm15 – 50
Linkage Arm Width6 mm3 – 12
Linkage Arm Thickness3 mm1 – 6
Linkage Hole Diameter2.5 mm1 – 5
Sliding Bolt Length55 mm35 – 75
Sliding Bolt Width12 mm8 – 16
Sliding Bolt Thickness6 mm2 – 10
Bolt Pin Hole Diameter3 mm1 – 5
Pull Tab Length8 mm4 – 15
Pull Tab Height6 mm2 – 12

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.

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Arduino Smart Door Lock Assembly - Free CAD Model (STEP, STL) | TextoCAD