LMI Gocator 3500 Review: Specs and Uses of the 5-Megapixel 3D Snapshot Sensors
Updated: 7 days ago

The LMI Gocator 3500 is a series of smart 3D snapshot sensors with a 5-megapixel stereo camera. The manufacturer does not publish prices. This review covers the models, specifications, features and uses.
Quick Verdict
Laser profilers need the part or the sensor to move. A snapshot sensor does not: it projects structured light and captures a whole area in 3D while the part stands still, which suits stop-and-go lines and robots that pause over a feature. The 3500 series does this at metrology level, with two cameras to reduce hidden areas and accuracy from 12 µm on the small 3506. The rate of 6 Hz requires a PC or LMI's GoMax NX accelerator. The series page gives no weight.
LMI Gocator 3500 at a Glance
Camera: 5-megapixel stereo
Scan rate: 6 Hz with acceleration
Models: 3506 and 3520
Resolution XY: 20 to 121 µm
Field of view: up to 282 x 175 mm
Price: on request
LMI Gocator 3500 Models and Specifications
The table below lists the two models in the series.
Specification | 3506 | 3520 |
Resolution XY | 20 to 25 µm | 74 to 121 µm |
VDI/VDE accuracy | 12 µm | 90 µm in the central 100 mm; 200 µm in the full 150 mm |
Field of view | 27 x 45 to 30 x 45 mm | 179 x 115 to 282 x 175 mm |
Clearance distance | 87 mm | 203 mm |
Measurement range | 25 mm | 150 mm |
Weight is not stated on the series page.
Design and Build Quality
The sensor combines a projector with two cameras. Stereo viewing means that a surface hidden from one camera is often visible to the other, which LMI describes as minimizing occlusions. The 3506 is a close-range model for small precise features; the 3520 covers parts up to roughly the size of a sheet of paper.
Software and Integration
Setup
A browser-based interface and an open-source SDK are used for configuration and real-time 3D visualization.
Acceleration
The 6 Hz rate is reached with a PC or the GoMax NX accelerator.
Connectivity
Native drivers and industrial protocols connect the sensor to robots, PLCs and third-party software.
LMI Gocator 3500 Uses
Robot-Mounted Inspection
LMI describes the series as pick-and-place friendly for robotic inspection.
Stationary Inspection
Parts that stop in a fixture are measured in one capture.
Small Precision Parts
The 3506 measures small features at 20 to 25 µm lateral resolution.
LMI Gocator 3500 Price and Value
LMI Technologies does not publish prices for the Gocator 3500 series; quotes are available from the manufacturer and its distributors.
For the company behind the product, read the LMI Technologies Company Profile: Ownership and Products.
Pros and Cons
Pros
Full-area 3D without motion
5-megapixel stereo camera
Accuracy from 12 µm
Suitable for robot mounting
Measurement tools from the Gocator family
Cons
6 Hz requires a PC or accelerator
Only two models
Weight not stated on the series page
No published prices
Who Should Buy the LMI Gocator 3500?
The series fits manufacturers who inspect stationary parts or use a robot to bring the sensor to several features on an assembly.
LMI Gocator 3500 FAQ
How much does the LMI Gocator 3500 cost?
LMI does not publish prices; they are available on request.
What is a snapshot sensor?
A 3D sensor that captures a whole area in one shot while the part is stationary.
How fast is the Gocator 3500?
6 Hz with a PC or GoMax NX accelerator.
Which models are in the Gocator 3500 series?
The 3506 and 3520.
How accurate is the Gocator 3500?
VDI/VDE accuracy is 12 µm on the 3506 and 90 to 200 µm on the 3520.
What is the field of view of the Gocator 3500?
Up to 30 x 45 mm on the 3506 and up to 282 x 175 mm on the 3520.
What camera does the Gocator 3500 use?
A 5-megapixel stereo camera.
Can the Gocator 3500 be mounted on a robot?
Yes. LMI describes it as suitable for robotic and stationary inspection.
Specifications are based on manufacturer information and may change.





