About Model T42


The Model T42 is a more dexterous alternative to the Model T. It consists of two underactuated fingers, each driven by an independent actuator. This design emerged from initial efforts to explore dexterity and in-hand manipulation primitives with underactuated hands.


L.U. Odhner, R.R. Ma, and A.M. Dollar
"Open-Loop Precision Grasping with Underactuated Hands Inspired by a Human Manipulation Strategy," IEEE Transactions on Automation Science and Engineering, vol. 10(3), pp. 625-633, 2013.


L.U. Odhner, R.R. Ma, and A.M. Dollar
"Exploring Dexterous Manipulation Workspaces with the iHY Hand", Journal of the Robotics Society of Japan, vol. 32(4), pp. 318-322, 2014

Design Options


Fingers

Flexure-Flexure
Pivot-Flexure
Pivot-Pivot

Actuators

Dynamixel
Power HD

Performance


Specifications

  • Actuators: 2x Dynamixel RX-28/MX-28 or Power HD Servo
  • Base Height: 55-80mm
  • Base Diameter: 90-105mm
  • Weight: 400g
  • Holding Force: 10N

Capabilities (Video)

Build


CAD

  • Latest Revision [Github]
  • Revision 1.0.0 (02/17/2015) [zip]
  • Revision 0.3.2 (11/28/2013) [.zip]
  • Revision 0.3.0 (06/02/2013) [.zip]

Instructions