4DOF Robot Arm with Pen Holder

3 views

Bounding box: 436.6 × 120.0 × 202.5 mm
Engine: Precision B-rep
Parameters: 27
Published: August 20, 2026

Download

Free to download and use. See the terms.

The prompt

4dof robotics arm for 2 path tracing

Parameters

Name	Value	Range
Base diameter	120 mm	60 – 200
Base height	40 mm	10 – 100
Base mounting hole diameter	6 mm	3 – 15
Base mounting hole count	4 count	3 – 8
Base mounting hole circle diameter	108 mm	80 – 140
Turret diameter	100 mm	50 – 180
Turret thickness	25 mm	5 – 60
Shoulder bracket length	60 mm	30 – 100
Shoulder bracket width	50 mm	20 – 80
Shoulder bracket height	40 mm	20 – 80
Upper arm length	200 mm	80 – 300
Upper arm width	40 mm	20 – 80
Upper arm thickness	30 mm	10 – 60
Upper arm angle from horizontal	30 deg	0 – 80
Elbow housing length	55 mm	30 – 100
Elbow housing width	45 mm	20 – 80
Elbow housing height	35 mm	20 – 80
Forearm length	180 mm	60 – 280
Forearm width	35 mm	15 – 70
Forearm thickness	25 mm	10 – 50
Forearm angle from horizontal	-30 deg	-80 – 80
Wrist block length	45 mm	20 – 80
Wrist block width	40 mm	20 – 80
Wrist block height	30 mm	15 – 60
Tool holder diameter	35 mm	10 – 80
Tool holder length	60 mm	20 – 120
Pivot hole diameter	8 mm	3 – 25

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.

More models

Browse the full gallery →

92.5 × 54.5 × 40.0 mmPrecision

Trumpet Lyre Mount Main Body

A single 3D mechanical CAD part for a trumpet music lyre mount (Main Body with Paddle). Geometry details: 1. A 18mm-wide semi-cylindrical clamp arc for a 28mm diameter cylinder, w

STEPSTLGLB14 PARAMS

235.0 × 155.0 × 122.5 mmPrecision

Spur Gearbox

design gearbox

STEPSTLGLB16 PARAMS

320.5 × 129.8 × 129.9 mmPrecision

UAV Ogive Nose Cone

Design a watertight, 3D-printable aerodynamic nose cone module for a fixed-wing tactical UAV, optimized for printing in Carbon Fiber Filled PETG (PETG-CF). The base of the nose con

STEPSTLGLB12 PARAMS