qdd100 beta developer kit
qdd100 beta developer kit
qdd100 beta developer kit
qdd100 beta developer kit
qdd100 beta developer kit
qdd100 beta developer kit
qdd100 beta developer kit
qdd100 beta developer kit
qdd100 beta developer kit
qdd100 beta developer kit
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qdd100 beta developer kit

Regular price
$469.00
Sale price
$469.00
Regular price
Sold out
Unit price
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Shipping calculated at checkout.

This is the beta kit for the mjbots qdd100 quasi-direct drive brushless servo (also available for purchase separately).

Specifications: 

  • Torque, measured in ambient 20C lab with no airflow or heatsink until limiting occurs
    • Peak: 12.5 Nm (< 1s)
    • 10 Nm - 30s
    • 6 Nm - 300s
    • 2.5 Nm - Indefinite
  • Peak speed: 2,000 dps @ 24V
  • Backlash: +- 0.2 degrees
  • Weight: 470g
  • Control rate: 40kHz
  • Mechanical - CAD drawing 
    • Outer diameter: 100mm
    • M3 fixed mounting bolt pattern on front and back
    • M3 mounting bolt pattern on output with M4 dowels
  • Voltage input: 10-34V
  • Communication: 5Mbps CAN-FD
  • Power connector: 2x XT-30
  • Data connector: 2x JST PH-3
  • Open source motor driver and firmware with programming port and CAN bootloader: https://github.com/mjbots/moteus
In addition, this is a developer kit that includes everything you need to power up and operate the device: 
  • fdcanusb USB to CAN-FD adapter
  • DB-9 to JST PH-3 cable for CAN communication
  • 24V power supply with XT30 connector
  • Spare XT30 and JST PH-3 connectors
  • Brackets and bolts for mounting to a table and a demonstration output "horn" with hole for 1 inch tube
  • USB STM32 programmer w/ moteus JST-ZH6 connector
The servo is available standalone at: https://shop.mjbots.com/product/qdd100-beta/

Documentation: 

Support / questions:  NOTE: This is a BETA product. There will be rough edges, possibly lots of them. The documentation isn’t great / is non-existent, the firmware has not seen wide use, and the hardware may be unreliable. You’re OK with that, and don’t mind providing feedback on how the servo works and how it could be improved. Legally, this beta product is provided AS-IS, without any express or implied warranties, including but not limited to warranties of merchantibility, fitness for a particular purpose and non-infringement.