- Home
- Motion Platforms
- 3DOF Motion Platform
Designed, built and tested by CSCMotion
Custom 3DOF Motion Platform
We design and manufacture servo-electric three-axis platforms for industrial testing, research and OEM equipment. Our reference series controls heave, roll and pitch; when your application needs another axis combination, we evaluate a custom mechanism around the load and motion task.

Our reference range covers 100 to 30,000 kg payload classes, with custom configurations available. We confirm the final load rating and motion envelope from your complete moving assembly, center of gravity, inertia, trajectory and duty cycle.
3 defined axes
100–2,000 kg
Servo-electric
Controller & API
Define the three axes before selecting a model
Start by Defining the Three Required Axes
“3DOF” means three controlled degrees of freedom, but it does not identify one universal axis set. Tell us which translations and rotations your application needs; we record the axes, signs, units and coordinate frame in the project specification.
Our reference product classes use heave, roll and pitch. If you need yaw, surge, sway or another combination, we evaluate it as a custom architecture instead of applying performance from the reference series.

Three-axis definition graphic brief.
Surge
Sway
Heave
Choose a 3DOF Platform Range
Choose the closest payload range as a starting point. We then check your complete moving mass, top-frame size, CG, inertia, required heave and tilt, and duty cycle before recommending a configuration.

Compact · 100 / 150 kg classes
Compact 3DOF Motion Platform
For light fixtures, compact research rigs and smaller OEM assemblies where installation space and responsive motion matter. We adapt the top interface, travel and controls to your equipment.
References
ACE3-3DOF-100 / 300
Axes
Heave / roll / pitch reference
Final sizing
Moving mass, CG and workspace
Discuss a compact platform →

Mid-load · 500 kg class
Mid-Load 3DOF Motion Platform
For laboratory equipment, test fixtures and OEM frames that need more mounting area or payload margin than our compact range.
References
ACE3-3DOF-500
Axes
Heave / roll / pitch reference
Final sizing
Top frame, inertia and duty cycle
Discuss a 500 kg-class platform →

High-payload · 800 kg +
High-Payload 3DOF Motion Platform
For larger fixtures and professional systems where structure, CG, inertia, foundation reactions and installed power must be reviewed together.
References
ACE3-3DOF-800 / 1000
Axes
Heave / roll / pitch reference
Final sizing
Structure, power and FAT plan
Discuss a 800 kg + platform →
Choose the closest payload range as a starting point. We then check your complete moving mass, top-frame size, CG, inertia, required heave and tilt, and duty cycle before recommending a configuration.
Compare Our 3DOF Reference Classes
The table helps you identify the closest starting point. Send us the moving assembly and required motion; we will confirm whether a reference configuration fits or a custom geometry is needed.
| Reference model | Payload class | Reference axes | Profile | Typical design priority | Review status |
|---|---|---|---|---|---|
| ACE-3DOF-100 | 100 kg | Heave / roll / pitch | Compact | Small footprint and light research fixtures | Availability review |
| ACE-3DOF-300 | 300 kg | Heave / roll / pitch | Compact | Balance of payload, footprint and response | Priority reference |
| ACE-3DOF-500 | 500 kg | Heave / roll / pitch | Mid-load | Mounting flexibility and controlled dynamics | Priority reference |
| ACE-3DOF-800 | 800 kg | Heave / roll / pitch | High-payload | Structure, CG, installed power and integration | Priority reference |
| ACE-3DOF-1000 | 1000 kg | Heave / roll / pitch | High-payload | Structure, CG, installed power and integration | Priority reference |
We Engineer the Platform Around Your Motion Task
Before we select actuators or platform geometry, we define the three axes and complete moving system. These inputs allow us to size the platform correctly and set measurable acceptance criteria.
01 Selected axes
Confirm heave, roll and pitch or identify the alternative three-axis combination required.
02 Moving mass
Include the payload, fixture, top frame, cabin, operator and every item that moves.
03 Center of gravity & inertia
Provide the CG location and inertia where available; both directly affect actuator load and usable motion.
04 Travel, angle & pivot point
Define heave, roll, pitch, rotation center and the simultaneous trajectories that matter.
05 Dynamics & duty cycle
Velocity, acceleration, frequency content, motion profile and operating hours.
06 Integration & acceptance
Share the top-frame, footprint, power and host-interface constraints, and confirm safety and FAT responsibilities.
What We Confirm in Your Project Datasheet
We issue configuration-specific data rather than a generic list of maximum values. Each figure in the project datasheet is tied to the selected axes, approved moving assembly, geometry and operating condition.
| Specification | Customer input | Engineering output | Why it matters |
|---|---|---|---|
| Axis definition | Required translations and rotations | Named axes, signs, units and coordinate frame | Prevents different meanings of “3DOF” |
| Moving load | Payload, fixture, top frame and accessories | Rated payload and gross moving load definition | Prevents undersizing around the test article alone |
| CG & inertia | CG coordinates and mass distribution | Approved CG and inertia condition | Changes force, torque and available motion |
| Heave / travel | Required vertical or project-specific translation | Single-axis and combined-axis usable travel | Actuator stroke is not equal to platform travel |
| Roll & pitch | Required angles and rotation center | Angular range around an agreed coordinate frame | Pivot point changes actuator motion and load |
| Dynamics | Velocity, acceleration, frequency and trajectory | Achievable values under approved conditions | Peak and continuous operation are different |
| Structure | Top frame, footprint, height and mounting | Outline drawing and installation interfaces | Geometry determines motion and site fit |
| Electrical & control | Power, environment, duty cycle, host commands and I/O | Cabinet, protection and interface definition | Avoids late installation and software risk |
| Safety & FAT | Risk boundaries and acceptance objectives | Limits, interlocks, test plan and deliverables | Makes acceptance measurable before shipment |
Payload, CG and combined motion
Why Mass Alone Is Not Enough
A compact centered fixture and a tall offset assembly may weigh the same, but they do not place the same demand on the actuators, joints or structure during roll and pitch. We select the platform from the complete moving assembly—not the payload figure alone.
Single-axis limits are not the same as simultaneous heave, roll and pitch capability. We calculate the usable combined workspace around your approved load, rotation center and operating trajectory.
Total moving mass
CG in X, Y and Z
Moments of inertia
Rotation center
Single-axis range
Combined-axis trajectory

Payload, CG and combined-workspace brief.

Electric three-axis architecture brief.
Electric actuation / closed-loop feedback
How Our 3DOF Platform Produces Coordinated Motion
Our controller coordinates the platform mechanism to generate the commanded heave, roll and pitch pose. Servo drives and feedback devices close the motion loop while software limits keep the platform inside the approved workspace.
Different three-axis mechanisms create different load paths, footprints and service requirements. We confirm the actuator arrangement and performance against the selected model or custom design.
Servo-electric actuation
Closed-loop position feedback
Coordinated three-axis limits
Project-specific top-frame geometry
Mechanical and software protection
Service-access planning
Controller, software and API integration
We Define the Control Interface Before Manufacturing
We document commands, coordinate conventions, units, update timing, motion limits, I/O and safety responsibilities before manufacturing. This gives your software and electrical teams a clear interface before commissioning.
01 / Host
Test or OEM System
Trajectory, pose, simulator data or project-specific motion commands.
02 / Interface
Data & I/O Layer
Protocol, update behavior, command units, status and interlocks.
03 / Control
3DOF Controller
Kinematics, coordination, limits and motion execution.
04 / Drive
Servo System
Coordinated drive loops with actuator feedback.
05 / Platform
Measured Motion
Position, alarms, safety state and agreed validation data.
Focused Motion for Your Equipment and Test Objective
We recommend 3DOF when three defined axes reproduce the motion your application needs. This keeps the mechanism, controls and validation focused on the required task.

Industrial testing
Reproduce Six-Axis Motion for Testing
Mount your component or equipment on a controlled six-axis base for repeatable laboratory motion and validation.
Explore industrial testing →

Research & laboratories
Build a Six-Axis Research Platform
Configure the platform for motion studies, control development, equipment evaluation and repeatable trajectory work.
Explore research platforms →

OEM integration
Integrate Motion Beneath Your Equipment
We coordinate the moving frame, mounting, controller and electrical interface with your equipment design team.
Explore custom OEM systems →

Professional integration
A Motion Base for Professional Integrators
We supply the motion platform, controller and platform-side interface. The simulator integrator remains responsible for the cabin, visual system, training content and complete-system delivery.
Explore simulator-platform integration →
3DOF Motion Platform Project Videos & Photos
Our project media shows the actual platform, its three-axis mechanism, loaded factory testing and customer integration. We publish project names and performance data only when the customer has approved them.
Six-Axis Factory Acceptance Test
A complete FAT sequence shows coordinated motion, the approved test load and the safety conditions used during verification.
Explore industrial testing →
Platform Assembly & Inspection
Explore research platforms →

Compact & Mid-Payload Platform

High-Payload Configuration

Structure & Mounting Interfaces

Actuation & Feedback

Controller & Electrical System

Loaded FAT Evidence
3DOF vs 6DOF Motion Platform
More axes do not automatically create a better system. We recommend 3DOF when three named axes cover the task, and 6DOF when the assembly needs full translational and rotational pose control.
6DOF Motion Platform
Best when surge, sway, heave, roll, pitch and yaw are all needed for the approved trajectory or test method.
- All six rigid-body axes
- More flexible pose and rotation-center definition
- Higher geometric and control coupling
- Appropriate when omitted axes would compromise the task
Review 6DOF platforms →
3DOF Motion Platform
Best when heave, roll and pitch—or another explicitly defined three-axis set—covers the required task.
- Three selected degrees of freedom
- Potentially simpler mechanism, controls and installation
- Still requires load, CG, combined-motion and safety analysis
- Does not reproduce the three omitted axes
Define the required three axes →
Reference Configuration or Custom Three-Axis Geometry?
A reference configuration is the fastest route when your load and heave, roll and pitch requirements fit an existing platform family. We develop a custom mechanism when the axes, moving assembly or installation require another geometry.
Configure an Existing Platform Family
We start from a 100–1000 kg reference class, then confirm the moving frame, workspace, controls and project options.
- Reference axis architecture
- Project-specific top frame and mounting
- Controller, electrical and interface options
- Performance confirmed under approved conditions
Compare reference classes →
Engineer a Custom Three-Axis System
We develop a custom mechanism for yaw, surge, sway, special low-height structures or nonstandard travel and installation constraints.
- Explicit alternative axis combination
- Custom mechanism and load path
- Project-specific kinematics and limits
- Acceptance plan tied to the custom operating condition
Discuss a custom platform →
What Our Case Studies Document
Our case studies focus on the information an engineering buyer needs: the moving assembly, selected axes, platform scope, integration method and acceptance evidence. Confidential project details remain protected.

Research project · permission required
Compact Three-Axis Research Rig
The case study explains why the selected axes were sufficient, how the fixture and CG were defined, and what the test verified.

OEM / testing · permission required
300 kg-Class Integration Project
The case study documents the moving assembly, top-frame interface, motion profile, controller boundary and acceptance checks.

High-payload · permission required
800 kg-Class Professional System
The case study explains how we selected the structure, installed power, interface and FAT plan from the project requirement.
What We Supply—and What Your Team Supplies
We define the supply boundary in the proposal so your mechanical, electrical and software teams know exactly what we provide and what remains with the integrator.
Our platform-side scope
- 3DOF mechanical platform and selected actuators
- Platform controller and electrical system as quoted
- Platform-side safety, limits and status functions
- Top-frame and base interface drawings
- Agreed host communication support
- Manuals, test records and FAT deliverables in the proposal
Your team or integrator scope
- Test article, fixture, cabin or upper equipment
- Host application, simulation model or test sequence
- Foundation, utilities and site readiness
- System-level risk assessment and guarding
- Cockpit, visual, audio and training content
- Overall certification unless separately contracted
How we deliver a custom 3DOF platform
From Your Requirements to an Accepted Platform
We convert your requirements into defined engineering outputs, supply responsibilities and acceptance checks. The project schedule is confirmed after feasibility review.
Step 01
Requirements
We review the application, moving mass, CG, workspace, dynamics, duty cycle and site.
Step 02
Feasibility
We check geometry, actuator capacity, power, interfaces and key project risks.
Step 03
Engineering
We complete the mechanical, electrical, control, software, safety and documentation design.
Step 04
Build & FAT
We manufacture, assemble and commission the platform, then complete the agreed FAT.
Step 05
Delivery Support
We provide shipment documents, installation guidance and the agreed integration support.
3DOF motion platform price
What We Need to Prepare an Accurate Quote
Price depends on the selected axes, complete moving load, travel, angles, dynamics, structure, controls and delivery scope. Two projects in the same payload class can require different platforms because their CG, motion and duty cycle are different.
We prepare the quotation from your approved requirements and clearly separate included equipment, optional items and customer-supplied scope.
Reference class and axes
Moving load, CG and inertia
Travel, angles and dynamics
Structure and mounting
Travel, angles and dynamics
Structure and mounting

Quotation-factor graphic brief.
Answers from our engineering team
3DOF Motion Platform FAQ
What is a 3DOF motion platform?
A 3DOF motion platform controls three defined degrees of freedom. Our reference series uses heave, roll and pitch for vertical translation and two-axis tilt.
Which three axes does a 3DOF motion platform use?
The term does not identify one universal axis set. Tell us which translations and rotations you need; we confirm the selected axes, signs, units and coordinate frame in the project documents.
Do CSCMotion reference platforms use heave, roll and pitch?
Yes. Our 100–500 kg reference classes use heave, roll and pitch. If your application needs another three-axis combination, we review it as a custom architecture.
Can a 3DOF motion platform include yaw?
Yes, but yaw is not part of our heave, roll and pitch reference series. We review the mechanism, range, load, footprint and controls separately for any design that includes yaw.
What payload classes are available?
We offer 100, 150, 300 and 500 kg reference classes. We confirm the final configuration from the gross moving mass, center of gravity, inertia, workspace and duty cycle.
What is the difference between a 3DOF and 6DOF motion platform?
A 3DOF platform controls three selected axes. Our 6DOF motion platform controls surge, sway, heave, roll, pitch and yaw. We recommend the architecture that matches your motion task, usable workspace and acceptance objective.
What controller, software and API options are available?
We select the interface around your host system. Our project experience includes USB, CAN, RS232, RS485, Ethernet and fieldbus-based architectures. We confirm commands, units, timing, I/O, status, limits and responsibilities in the interface document.
Can CSCMotion share 3DOF project photos and motion-test videos?
Yes, when customer confidentiality and media permissions allow. We publish approved assembly, factory-test, finished-system and installation media, and we limit project names and specifications to cleared information. See our 3DOF project media section.
Talk directly with our engineering team
Send Your 3DOF Requirements
You do not need to complete the specification before contacting us. Send the required axes, moving assembly and target motion; our engineers will identify missing inputs and recommend the next step.
What must move and which axes are required
Moving mass, dimensions, CG and inertia
Required travel, angles and dynamics
Mounting, installation, power and environment
Host interface, FAT expectations and schedule