6 × 1000 W EtherCAT servos
AC servo motors with holding brake, 3.2 Nm rated torque and three times that as peak — synchronised over EtherCAT for jitter-free motion.
In development · Fourth generation
MAKE 4
The 6-DOF motion platform, engineered from the ground up.
Six 1000 W EtherCAT servo actuators, 400 mm stroke and a laser-cut steel hexapod — driven by the Motion4Sim controller.
6degrees of freedom
6×1000 WEtherCAT servos
400 mmactuator stroke
572 mmheave travel
±30°roll · pitch · yaw
MK4 — Make 4
A hexapod that moves like the real thing.
The MK4 is a Stewart platform: six linear actuators carry the cockpit on gimbal joints. Surge, sway, heave, roll, pitch and yaw are available independently and in any combination — with the instant response of servo-driven ball screws.
Every part was generated parametrically in CAD and every pose checked: the kinematics, the joint angles and the actuator forces of the MK4 were computed for millions of positions before the first sheet was cut.
- Base joint circle R 800 mm for a calm, stable footprint
- Brake-equipped servos hold the platform when powered off
- MK4 preset with live 3D view in the Motion4Sim Dashboard
Engineering
Built like a machine tool.
Industrial drive technology, precise joints and a steel structure without compromises.
Ball-screw linear actuators
Ø16 mm ball screw with 10 mm lead, 400 mm stroke and up to 500 mm/s. 1.8 kN continuous and 5.4 kN peak force per actuator.
Precision gimbals
Twelve universal joints with a 40° cone. At the top, ZKLF angular-contact thrust bearings free the rod rotation — no binding, no play.
Laser-cut steel
S235 steel in 2, 3 and 5 mm, tab-and-slot base boxes and a bolted top frame. Rigid, quiet and built to last.
Integrated LED lighting
LED strips under the base covers shine through the MK4 and Motion4Sim cut-outs and light the floor around the rig.
Motion4Sim controller
Our own controller and Dashboard: MK4 preset with live 3D view, works with SimTools, FlyPT Mover, Sim Racing Studio and SimHub.
Six degrees of freedom
Every axis. Fully independent.
Rendered from the CAD model with the real kinematics — each clip shows one axis, the camera flies around the rig.
Surge
−270 / +355 mm
Forwards and backwards — acceleration and braking.
Sway
±280 mm
Sideways — lateral forces in corners.
Heave
−315 / +255 mm
Up and down — kerbs, bumps and crests.
Roll
±30°
Tilt about the longitudinal axis — body roll and banking.
Pitch
±30°
Nose up and down — dive under braking, squat under power.
Yaw
±30°
Rotation about the vertical axis — slides, drifts and traction loss.
Translations: single-axis limits of the rig geometry (actuator stroke and 40° gimbal cone). Rotations are limited to ±30° on all axes for stability. In combined motion the controller keeps the platform inside the safe workspace.
Interactive
Drive it yourself.
The real CAD model with the real kinematics, computed live in your browser. Move the sliders — every actuator, joint and gimbal follows.
Loading CAD model 0 %
Drag to orbit · scroll or pinch to zoom · right-drag to pan
Dimensions
How much space do you need?
Measured directly on the CAD model — retracted, neutral and fully extended, with or without cockpit, next to a 1.80 m person.
Footprint (base)–
Deck height–
Overall height–
Overall length–
All values in millimetres, floor = underside of the levelling feet. Cockpit shown as an example set-up.
Gallery
Every angle.
Prototype
Real photos.
The first MK4 prototype under test — pictures straight from development, October 2026.
2.46 Mposes analysed for actuator and joint forces
1.8 kNcontinuous force per actuator
5.4 kNpeak force per actuator
200 kgpayload — calculated and planned
Technical data
Specifications.
Motion
- Type
- 6-DOF Stewart platform (hexapod)
- Surge
- −270 / +355 mm
- Sway
- ±280 mm
- Heave
- −315 / +255 mm
- Roll
- ±30°
- Pitch
- ±30°
- Yaw
- ±30°
Drive
- Actuators
- 6 × electric linear actuator, ball screw Ø16 × 10 mm
- Stroke
- 400 mm
- Servo motors
- 6 × 1000 W AC servo, EtherCAT, holding brake
- Rated torque
- 3.2 Nm @ 3000 rpm
- Force per actuator
- 1.8 kN continuous / 5.4 kN peak
- Speed
- up to 500 mm/s
- Payload
- 200 kg on the platform (calculated, planned)
Geometry & dimensions
- Base joint circle
- R 800 mm
- Platform joint circle
- R 250 mm
- Footprint (base)
- 1745 × 1539 mm
- Deck height
- 537 / 854 / 1110 mm (retracted / neutral / extended)
- Height with cockpit
- 1537 / 1854 / 2110 mm
- Gimbals
- 12 × universal joint, 40° cone
- Top bearings
- 6 × ZKLF 1762-2Z
Structure & electronics
- Material
- S235 steel, laser-cut, 2 / 3 / 5 mm
- Base
- 3 tab-and-slot steel boxes, 10 × M12 levelling feet
- Cockpit mount
- Top deck with M8 threaded holes
- Controller
- Motion4Sim controller, EtherCAT
- Connectors
- IP65 RJ45 data, SP16 power connector
- Lighting
- Integrated LED strips in the base
- Software
- Motion4Sim Dashboard, SimTools, FlyPT Mover, Sim Racing Studio, SimHub
Notes
- W.I.P. The MK4 is still in development. All values are provisional, may still change and come without guarantee.
- Payload 200 kg — calculated and planned.
- Rotation limit Angles are limited to ±30° on all axes for stability, even where the geometry would allow more. Translation ranges are single-axis limits of the rig geometry.
- Brakes All six axes have holding brakes.
- Servo cooling The 1000 W servos are actively cooled with a fan, which is very loud in its original form. A quieter modification is in development, but it would void the manufacturer's warranty. Alternative: 750 W servos are passively cooled and quiet, but allow less payload.
- Forces Calculated for the 1000 W servo with Ø16 × 10 mm ball screw.
Controller & software
Plug in. Pick a sim. Go.
The MK4 runs on the Motion4Sim controller. The Dashboard ships with an MK4 preset — geometry, actuators and limits are already set, and the 3D view shows your rig live.
Motion data comes from the cueing software you already use.
SimToolsFlyPT MoverSim Racing StudioSimHub
FAQ
Questions & answers.
How much floor space does the MK4 need?
The base covers 1745 × 1539 mm. With the cockpit shown and every axis at its limit, the platform sweeps an area of 1745 × 2378 mm — the dimension drawings above show the exact sizes in every position.
Which cockpit can I mount?
The top deck has an M8 threaded hole pattern for aluminium profile cockpits. The cockpit in the pictures is an example set-up.
How heavy can driver and cockpit be?
The payload is calculated and planned at 200 kg on the platform — cockpit, wheel base, seat and driver together. As the MK4 is still in development, this value is provisional.
Which games and simulators are supported?
Everything your motion software supports. The controller works with SimTools, FlyPT Mover, Sim Racing Studio and SimHub — see the documentation for the full list.
How loud is the MK4?
The 1000 W servos are fan-cooled and quite loud in their original form. A quieter modification is in development, but it would void the manufacturer's warranty. Passively cooled 750 W servos are quiet, but allow less payload.
What happens when the power goes off?
All six axes have holding brakes. The platform stays where it is instead of sinking down.
Interested in the MK4?
Tell us about your set-up — we will get back to you with availability and pricing.