SuSim – Sureal Simulation
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DIY Motion / Sureal Simulation

Motion you
build yourself.

SuSim is a DIY motion rig developed around the SMC3 protocol. It combines 3D-printed parts, understandable technology and an affordable build – for anyone who wants to bring their simulation to life with motion.

Interactive playground

Take a look inside the rig

Rotate the model, zoom in and explore its parts in the playground. Right in your browser.

Explore the rig in 3D Explore projects
SuSim – Sureal Simulation
Personal DIY projectMotion / Control / 3D printingSuSim / 2026

The project

Don't just watch the simulation. Feel it.

SuSim brings together DIY developments for motion rigs. The focus is on understandable technology, robust solutions and components that you can make and improve yourself with a manageable amount of effort.

SuSim / Development figures

More movement. Your own build.

CAD overview of the SuSim wooden-base prototype with seat, pedals and four motion modules
The complete assembly · CAD design of the wooden-base prototype with four motion modules.
Travel
up to200 mm
Speed
up to200 mm/s
At divider 1 · 4 kHz
Control interval0.25 ms
For 4 motion motors
approx.1,200 €

Travel and speed are design figures; achievable values depend on the build and load. 0.25 ms is the scheduled firmware control interval, not the overall response time. The price covers four motors, not the complete rig.

Your rig. Your modifications.

Published files and source code are available for your personal, non-commercial build and modifications.

View usage and licence terms →
Colour design visualization of the motion module
Design visualization · Colour and styling concept

Motion / V3

A closer look at the motion module

From the closed housing to the internal assembly: discover the V3 module views, then explore the model yourself in 3D.

See the module in detail Explore it in 3D →

Videos / SuSim

SuSim on YouTube

Visit the SuSim channel and watch videos about the project.

Visit the YouTube channel

Projects in development

Three approaches. More motion for your rig.

CAD view of the adapter PCB for Arduino R4
Arduino R4 / Adapter PCBCAD view · Development version
01

SuSim SMC3 R4

A fresh implementation of the established SMC3 controller: the Arduino Uno R3 approach is being ported to the Uno R4 and developed for the next stage of the motion rig.

Status: Development & testing

View project
CAD view of the Motion Core control box with display and buttons
Motion Core / Control boxCAD view from Onshape
02

SuSim Motion Core

The heart of the rig: a central controller with modular extensions for the individual drives. Components remain clearly separated, serviceable and ready for further functionality.

Status: Prototype

View project
CAD view of the closed motion module
Motion / V3CAD view from Onshape
03

3D printing & rig

Printed components are an important part of the SuSim rig. They make the build adaptable, reproducible and accessible to DIY builders.

Status: Ongoing development

View project

The DIY approach

Built to be understood.

3D printing is central to SuSim: it makes specialised rig components accessible, adaptable and reproducible at home when needed.

3D printingFunctional components that can be adapted to your rig and made at home when needed.

Understand the technologyControl, construction and development should remain understandable.

Develop ideas togetherIdeas, improvements and shared experience are part of the project.

For private DIY builders

Usage & licence

SuSim is a non-commercial DIY project. Private builds, modifications and sharing are welcome. Friends may pass on parts solely to recover the costs of materials, printing, shipping or replacement parts.

Sales for profit, commercial offers and use in commercial products are not permitted.

Read the licence and usage terms →