The QS-S25, as published
Six linear actuators, which also carry the static load. Transport delay under 8 ms, telemetry input to physical motion. €29,500 for the basic set — list, net, ex-works — sold through a European dealer network.
Qubic vs Portal Development Kit (PDK) The closest
like-for-like.
The Qubic QS-S25 and the PDK are the most directly comparable pair of motion rigs on this site: both are six-axis parallel-kinematic platforms in the same class.
Development Kit: early-access hardware, software in active development.
Side by side
Two real hexapods.
| Qubic QS-S25 | ARK PDK | |
|---|---|---|
| Architecture | 6DOF platform, six linear actuators | 6DOF Stewart-Gough, six direct-drive legs |
| Actuation | Linear actuators | Direct-drive BLDC outrunners, field-oriented control |
| Static load | Carried by the actuators | Carried pneumatically, patented technology |
| Control rate | Not published for the QS-S25 | 1 kHz game to motion · 3.3 kHz control loop · 8 kHz drive loop per motor |
| Transport delay | Under 8 ms, telemetry input to physical motion, as published | Under 1 ms, input to motion; boundary on /technology/latency/ |
| Power draw | Approximately 240 W average at 120 V, 200 W at 230 V, typical game | ≈30 W AC with a rider on and the motors armed · 15 W static hold · bursts up to 30 kW come from the capacitor bank, not the wall |
| Supply | As published by the manufacturer | 100–290 V mains, single phase |
| Price | €29,500 basic set (€29,500–€34,900 with cockpit and monitor sets), list, net, ex-works, as published | Development-kit price: $4,899.99 PDK · $6,299.99 PDK Racer · $8,499.99 Ecosystem |
| Network | Established European retail dealer network, mature software stack | Direct. No dealer network. |
Figures in the other column are read from the manufacturer's published material, with source and retrieval date. Manufacturers revise specifications — if one here is out of date, tell us and it gets corrected.
Sources and retrieval dates
Sources: Motion Systems — QS-S25 6DOF Qubic System Motion Platform, motionsystems.eu, retrieved 13 September 2026; Qubic System — QS-S25, qubicsystem.com, retrieved 13 September 2026; Qubic System — User manual for QS-S25, §2.7–2.9, qubicsystem.com, retrieved 13 September 2026.
Side by side, in plain terms
The PDK + ARK Ecosystem
Development-kit price for qualified recipients: $8,499.99, for the platform, the aluminum racing chassis, extension feet and table, and our direct-drive wheelbase, wheel, load-cell pedals and button box, matched and tuned as one system. Import terms are in the Development Kit Evaluation Agreement. You add the seat, PC and screen.
Built to allocation for qualified recipients · ready to ship an estimated 3–6 months from order confirmation; delays of up to 12 months are possible
Where the two part
Linear actuators against direct-drive legs with nothing in the load path. The standing weight on the actuators against carried on air by patented technology. Under 8 ms, telemetry input to physical motion as Qubic publishes it, against under 1 ms, input to motion. A dealer's list price against a published development-kit price, supplied direct.
Keep reading
What datasheets leave out
The method behind this page, applied to us before anyone else.
MOZA HMA150
Three axes on four posts against six axes on six legs.
Direct drive
The architectural difference this comparison turns on.
Every build starts with this platform. The PDK + ARK Ecosystem development kit finishes it: racing chassis, wheelbase, wheel, load-cell pedals and button box. Development-kit price for qualified recipients: $8,499.99.
Order a development kitAll four builds ›
Built to allocation for qualified recipients · ready to ship an estimated 3–6 months from order confirmation; delays of up to 12 months are possible