Welcome to CKAS

3DOF Systems

CKAS “U” Series 3DOF Motion Platforms


The CKAS “U” series motion platforms / systems are the best compromise motion systems offered by CKAS Mechatronics and these units are all fully professional, 3DOF electric, high fidelity synergistic motion platforms / systems. These units are the “best value” solution to any motion simulator application - providing more reliability, performance and features than those available on motion system costing many times the price. 

Some of the more common applications for 3DOF Motion Platforms / Systems include:  

  • Mid Fidelity Flight Trainers and Simulators for Aviation training
  • Serious Driving and mining simulators
  • Advanced University and Research Simulators (vehicle or flight)
  • Military vehicle and flight training simulators
  • Serious home cockpits

CKAS 3DOF Motion Platform units have been developed under the most stringent academic and professional design guidelines, to offer the highest fidelity motion systems, for the highest demand applications, at the best value

The key difference between CKAS 3DOF motion platforms / systems and other units on the market, is “design intent”. The CKAS units have been engineered specifically to be used as “Simulators” – not “rides”. This means that our washout algorithms, our controller architecture, and our mechanism design have all been refined to create the highest fidelity possible at an incredible value price point. The CKAS 3DOF design is a "floating centre" architecture, unlike many competitive units on the market which feature a low rigidity "sliding joint" design. The CKAS architecture has been refined heavily to provide the best possible fidelity for a 3DOF motion system.

Of course, this doesn’t mean that the CKAS 3DOF motion platform units cannot be used in ride and entertainment applications. On the contrary, these units offer incredible performance / cost ratio, and the resultant customer experience is supreme.

As with all revolutionary products, CKAS are providing more performance, for lower cost, and extremely limited maintenance requirements, making the CKAS 3DOF motion platforms perfect for ANY low to mid fidelity application.

As with all our Generation III capable motion systems, the U Series units have real-time Reverse Kinematics, Forward Kinematics and Full featured Washout Cueing Filters all completely "on-board" meaning that any client application can operate these systems at even the "vehicle acceleration" level completely independent of any other software (See Gen III Connectivity Matrix document for more information).

CKAS 3DOF motion platforms come standard with the following key features:  

  • Fully Electric Actuation
  • USB plug and play (with Ethernet as option for completely platform/OS independant control)
  • Instant connection to many games and programs "out of the box" (see the full game and simulation program supported list here)
  • Basic Serial over USB or optionally UDP (over Ethernet or Local) interface for immediate connection to custom software
  • Very high speed update 100Hz motion controller for extremely smooth high fidelity response 

If an application is to have excellent performance at a very reasonable price, the CKAS “U” Series 3DOF motion systems are by far the best value alternatives on the market.

Standard units in the middle weight CKAS “U” Series 3DOF Motion Platform family:


CKAS U5 3DOF Motion System

CKAS U10 3DOF Motion System


Floating Centre Heave-Pitch-Roll (HPR


Fully Electric

PC Interface


PC – Controller Update

100 Hz

Power Requirements

200 – 250 VAC 1ɸ – 16 amps

200 – 250 VAC 1ɸ – 25 amps

Approx Dim’s (parked)




1785mm (70")

1785mm (83")


1550mm (61")

1550mm (61")


650mm (26")

625mm (25")

Approx unit weight

500 kg ( 1100 lb )

560 kg ( 1235 lb )




Payload Mass

500 kg ( 1100 lb )

1000 kg ( 2200 lb )

Payload Moment of Inertia

250 kg m2

450 kg m2



Angular Axes

Displacement , Velocity , Accel

Displacement , Velocity , Accel


±18o , ±35o/S , ±400o/s2

±18o , ±35o/S , ±400o/s2


±18o , ±35o/S , ±400o/s2

±18o , ±35o/S , ±400o/s2




Linear Axes

Displacement , Velocity , Accel

Displacement , Velocity , Accel


±140mm, ±280mm/S , ±0.5G

±140mm, ±280mm/S , ±0.5G


Note: Custom units of ANY payload and specification can be designed and built to meet specific customer requirements. Please contact us for further information.

For more answers and information please read our Technical Section and FAQ, or alternatively, contact us with your query.