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Milantec MK1 GO
Technical Specifications

Complete technical details for engineers and enthusiasts. Last updated: October 14, 2025 (v4 hardware).

Specs may change during production engineering.

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The Force Feedback System

Motor & Drive

  • Type: BLDC, direct-drive(no gearing)

  • Mounting: Small wheel mounted directly to shaft

  • Peak torque: 0.25-0.30 Nm

  • Continous torque: 0.15-0.20 Nm (thermal dependent)

  • Control: Field-oriented control (FOC), 1 kHz loop​

Sensing/Position

  • Encoder: Magnetic encoder (12-bit / 4096 steps)

Effects

  • API: Standard DirectInput FFB effects (spring, damper, friction, periodic, etc.)

  • Tuning: Adjustable torque scaling, damping, and filters​

Why Direct-Drive at This Torque?

With a small grip radius, modest shaft torque translates to high fingertip force. After testing multiple motor and voltage setups, we found 0.25–0.30 Nm to be the ideal balance, strong enough for realistic cues, yet efficient in weight, heat, and power consumption.

Wireless Link & Latency

Measured (typical living room conditions)

  • End-to-end control latency: ~5 ms

  • Command/update rate: 200 Hz (optimized for stability; higher rates such as 300–500 Hz are under evaluation)

Battery & Power

Battery Pack

  • Type: 3S Lithium-ion (18650 cells)

  • Configuration: 11.1 V nominal (12.6 V fully charged)

  • Capacity: 2600 mAh (~28.9 Wh total energy)

Estimated Runtime (calculated)
 

Light FFB​

  • 6-7 hours

Medium FFB

  • 4-5 hours

Heavy FFB

  • 3-4 hours

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Runtime values are currently theoretical, based on power consumption calculations and load estimates from v4 hardware. Actual measurements will be added once prototype testing is completed.

Charging

  • Port: USB-C input

  • Input voltage: DC 3-6 V (5 V USB source)

  • Estimated charge time: 3–4 hours (from low-battery to full)

  • Operation while charging: Supported — the controller can run of power from the wall mode during charge.

Charging duration is an estimated value derived from module current and battery capacity; final measurements will be added after validation tests.

Safety & Protections

Thermal Management

  • Torque limiting at elevated temps; Motor shutdown at critical threshold (auto-resumes after cool-down)​

Current limiting

  • Real-time current monitor + hardware fuse for peaks

Link failsafe

  • On link loss, applies gentle centering force, status indicators, auto-reconnect

Emergency stop

  • Physical e-stop cuts motor drive power

Inputs & I/O

Steering

  • Magnetic encoder, 12-bit

  • Software-configurable range (eg., 180°–900°)

  • 1 kHz position readback

Pedals

  • Linear Hall-effect sensors

  • 10-bit resolution

  • Calibrated range with software adjustment

​​Brake mechanism:

  • Dual-spring progressive system — initial travel is light for modulation, with a stiffer secondary spring providing realistic resistance in the final ~25% of travel

Controls & Display

  • 7 programmable tactile buttons

  • 2-axis analog stick (10-bit), software dead-zone

  • 0.96″ OLED (128×64) for RPM/gear/battery/link status

Compatibility

Platform

  • Windows 10/11 (PC) via USB HID (wireless dongle)

Consoles

  • PlayStation/Xbox not supported on this version. Console support requires platform licensing and additional R&D and is part of our future roadmap.

Games

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