Common Questions

Sigma is a product focused company that has been working in the vehicle and simulation space since 2009.

Being a product focused company, we reinvest all our profits back into product development, continually making our products better for you the end customers. We spend almost no money on marketing, advertising, sponsorships, or expensive brand licensing deals and instead reinvest back into our products and our customers long term satisfaction. This is how we provide a truly unique product to the market, at such an incredible price. The only company in the space to provide billet made actuator bodies for better haptics, using premium American made motors and our own in-house motion algorithms.

Sigma is also the only company in the space that offers a unique Upgrade Anytime Program, that allows you to upgrade your system to any of our new systems in the future, at anytime.

We stand behind our products, and our products stand on their own.

Buying directly from us, the manufacturer saves you money and gives you a better quality product and service.

We are not buffered from our customers by our integrators, and so all support and post sales activities go back to us, the manufacturer of the product, so we can have an accurate idea of how our products are performing in the market. This allows us to immediately respond to issues, suggestions or concerns and creates a strong cycle of improvement through constant iterative refinement.

This is also why we don't call our integrators resellers or distributors. They don't just resell our products but properly integrate them into their products. Similarly our system integrators don't chase margins but motion performance.

The DK2 is our optimal motion solution for home setups with a total simulator mass of 500lbs or less. The actuators are made of billet and feature 2" of travel. The system uses the same algorithms as the DK2+ and DK6 to accurately represent motion or what we call Motion Integrity.

The DK2+ and DK6 use larger Teknic servo motors, which output more power and better represent motion and haptics with simulators of up to 800lbs. Hence the DK2+ and DK6+ systems are suited for heavier rigs, heavier drivers or for sim racing centers where the total system weight is always an unknown.

The DK6+ uses the same motor as the DK2+ but has triple the stroke or travel and is better at representing the natural suspension travel and flight simulation telemetry. More technical details can be found here: DK System Comparison - Sigma Integrale

Sigma focuses on three vertically integrated areas of system development to make a complete haptic motion system.

We closely control the Mechanical, Electrical and Software engineering and their proper integration to ensure optimal signal processing or what we call Motion Integrity.

Mechanically this means engineering and actually building our actuators in-house from billet aluminum, similarly machining solid 2" steel pistons and coating them with a slippery electroless coating process, and using over-sized ball screws and components. We further combine these actuators with premium American made motors and EMI free power units that offer 3x the performance for their relative size.

The actuators are then paired with our in-house Synapse motion controller, where most of the signal processing happens in our embedded Texas Instruments real-time controller running over an ethernet connection for best stability and compatibility.

The DK motion system connects to almost any typical aluminum extruded chassis.

Aluminum extruded rigs are the most popular type of material and can also be easily built into bases to hold tubular or other chassis designs.

Sigma includes unique CNC aluminum brackets with each order, that hold the actuators firmly to the extrusion frame. Any extension of the actuator or bracket from the chassis creates unwanted yield or resonance that may dampen the haptic transmission to the driver.

The power and data cables are designed to snuggly fit inside the aluminum extrusion channel, making cable routing clean and easy. We typically suggest and use the following dust covers to hide the cables inside the extrusion: https://www.mcmaster.com/5537T319-5537T25/

Yes the DK motion controller connects to your computer via a network cable and ships with a USB to network adapter or requires an available ethernet port on your computer.

Sigma uses a network interface as it allows for greater lengths and better quality of signal that is inline with our philosophy of Motion Integrity.

USB connections are great for standard peripherals but have length limitations and other signal degradation issues.

Shipping costs change all the time and its best to go through the checkout process on our website to determine what your actual shipping and tax costs will be.

For international shipments please check what your import duties are for your country as they do vary from region to region. A simple online search can tell you what your approximate duties or import fees will be.

You can also visit our integrators page for local regional prices and full turn key builds.
For all international shipments we use UPS expedited service which covers the clearance fees but you will be responsible for your countries import duty.

Please see this page for our Shipping Information and Policy.

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Each DK system is made to order and the production time is the time required to build, test, pack and ship your DK motion system. The shipping time is how long it takes you to receive your DK system. You can select several shipping options during checkout, but typically all domestic orders within USA are 3-5 days and international orders are 5-7 days.

We do not offer and discounts or coupons directly. We like to offer the best product at the best price all year long. Ready to be purchased whenever you are.

The answer to this question depends on various other factors or considerations but in short speed is energy, more speed is more energy which is more sound and noise as well.

In our internal testing, the DK6 system at full settings runs at about 55db max or equivalent to a quiet office setting. The controller fan runs at about 45 dB max.

Other considerations that effect sound levels is how high your settings in the Sigma software and what environment the system is installed in. High settings, specially road and engine vibrations will resonate a lot more than low settings with smoothing applied. Additionally, hollow floors, walls and thinner structures will reverberate more than solid concrete floors and walls, which tend to absorb sound much more. Smaller rooms will also make the Sigma motion seem louder as the sound waves bounce of the walls more quickly without dissipation. Some of our clients in apartments or multi dwelling units also run night settings where the engine vibrations are lowered at night, as not distress other people sleeping. ;-)

Installing gym mats or floor pucks underneath the actuator feet can dampen a majority of the sound and reverberation coming from the haptic system.

Here are some testing videos of our sound tests:

DK6+: https://www.youtube.com/shorts/0FwSLS0GU6c
DK2+: https://www.youtube.com/shorts/42JLNbGnKII 
DK2: https://youtube.com/shorts/b50bvKOGVFw

Not a significant amount.

The DK motion controller does most of the heavy lifting or real-time processing of the motion signals and removes it from the gaming PC and the Windows operating system.

Windows is a not real time system, meaning processing data in real-time cannot be guaranteed or trusted as it cannot 'schedule' priority over various tasks and background processes.

Hence processing telemetry data in the Windows OS doesn't meet our standards of Motion Integrity™, and so we push the data to our own embedded micro-controller which can provide real-time processing and positional information to the servos/motors/actuators.

This is one of the key differences of Catalog vs. Vertically Integrated motion systems. See our article here about the three types of motion systems.

The FIA license is a brand license that is granted to only one company or vendor within a particular made up category by the FIA in sim racing.

This license is granted, without any formal standard testing or subject to any real publicly disclosed criteria set by the FIA, as is in their FIA certified safety products.

The license should not be seen as an endorsement of any kind over other motion systems or any sort of certification, despite what the licensed manufacturer and its resellers state in their marketing. In our experience, this has created confusion in the market as the difference between license and certification is not clear and treated as one of the same by the most consumers.

We will remain in contact with the FIA and hope that in the future they will create an actual certification, much like safety equipment, that is open to all manufacturers and is not an exclusive marketing tactic.

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