MT Hand v3.3.0

by myotriton, published

MT Hand v3.3.0 by myotriton Jul 28, 2016
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MT Hand v3.3.0 by myotriton is licensed under the Creative Commons - Attribution license.

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This is free version of 3d printed MyoTriton project. (http://myotriton.com)
Using this files you could print completed hand and use it in prosthetics or to use like a part of robot or etc.

To collect full hand you should print:

  • Worm_v.3.3.0.STL - x5
  • Thumb_v.3.3.0.STL - x1
  • Link_v.3.3.0.STL - x4
  • Housing_v.3.3.0.STL - x4
  • Housing thumb_v.3.3.0.STL - x1
  • Hand_upper_cover_v3.3.0.STL - x1
  • Hand_buttom_cover_v.3.3.0.STL - x1
  • Finger_middle_part_v.3.3.0.STL - x4
  • Finger_first_part_v.3.3.0.STL - x4
  • Clamp_v.3.3.0.STL - x1

Besides these 3d printed parts you will need to buy additional devices:

  • Arduino Nano - x1
  • LiPo battery 1500mAh 7.4v - x1
  • Servo Mg995 or Mg996r (only with circle metal potentiometer) - x5
  • DC 6V 200RPM Mini Electric Metal Gear Motor Gearwheel N20 - x5
  • Bearings 3х6х2 - x10
  • Bearings 5х11x3 - x5
  • Hobnail 2mm diameter ~ x5
  • Hobnail 3mm diameter ~ x5

Print Settings


Flashforge Dreamer








This is the completed prototype of MyoTriton prosthetic hand.

Worm before treatment (Worm_v.3.3.0.STL)

Worm after treatment (Worm_v.3.3.0.STL)

Potentiometer from the servo installed in the Housing_v.3.3.0.STL. You need to change DC motor

How the single finger works.

Chip from the servo connected to the new DC motor

One of completed finger

Worm_v.3.3.0.STL with bearing 3х6х2 and Bearings 5х11x3

Completed body for finger: Housing_v.3.3.0.STL + Worm_v.3.3.0.STL with bearing 3х6х2 and Bearings 5х11x3

Pin that was made from Hobnail 2mm diameter. You should use it to connect Finger_first_part_v.3.3.0.STL + Link_v.3.3.0.STL. This pin is also using to connect Link_v.3.3.0.STL and Housing_v.3.3.0.STL

Pin that was made from Hobnail 2mm diameter. You should use it to connect Finger_first_part_v.3.3.0.STL + Finger_middle_part_v.3.3.0.STL

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