heidy top view

Heidy 300

Universal electric motor test bench.

Zubax Heidy 300 is an electric motor test rig designed for testing, tuning, and evaluation of electric motors and electric motor controllers. It is arranged in the coaxial configuration with two motors facing each other and mechanically coupled, such that one of the motors acts as the load for the other; alternatively, the load can be implemented as a hysteresis brake or a similar mechanism. Note that neither the motor nor the brake is included.

The motor mounting plates are compatible with a subset of IEC 60072 frames as well as the majority of drone motors, thanks to the universal mounting fixture. Refer to the drawing for details.

A small set of commonly used shaft couplers is included for quick start purposes.


  • Dimensions: 600x300x195mm
  • Mass: 14 kg
  • Minimum and maximum motor mounting plate separation: 10-400mm
  • Maximum torque: 500 Nm
  • Follows the IEC 60072 standard; fully supports IEC 63; partially supports IEC 71, 80, 90.

Included components

  • Universal joint: 6x4/5/6/8mm, 10x8/10mm
  • Flexible coupling: 6x3/4/5/6/7/8/10mm, 10x4/5/6/8/10mm
    • Torque limit: 0.6 Nm
  • Rod: 6/10x1000mm — can be cut to the desired length

Related announcements and discussions

Zubax Myxa with T-Motor MN5212 KV340 problem
Telega v0 m.max_eangvel and m.max_current parameters
Telega v0 DroneCAN (UAVCAN v0) ESC status message priority
Zubax Myxa A2 with Telega 1.0 and T-motor U8 Lite L KV95
Zubax Myxa compatibility with PX4
Unexpected Myxa behaviour at low voltages
Estimating the power dissipation of a motor controller
Telega v1.0 parameters for Sadulli Grosso
Problem with Mitochondrik LV
Myxa hardware fault after high current spinup
ESC Myxa and Komar DC Power Wire Lengths Added Capacitance
Myxa 1000-1200W usage or future variant
Sadulli firmware update
No USB connection in Kucher after Telega v1 update
Is there schematic for the Komar?
Using Telega v1 with ArduPilot-based flight controllers
Telega v0 quick-start guide
Using Telega v1 with PX4-based flight controllers
Ardupilot log messages meaning
Myxa ESC Telega Vendor Specific Status Code




Heidy 300 is manufactured in the European Union.

heidy side view with motor
heidy motor view
universal joints
flexible couplers
heidy side view