Bimodal Crawling Hand
The Bimodal Crawling Hand from EPFL is a reversible, detachable robotic end-effector with symmetrical architecture supporting up to six identical silicone-tipped fingers. It performs 33 human-like grasping motions, allows any fingers to form opposable thumb pairs, and interchanges palm/back via finger reversal. It detaches from the arm to crawl spider-like, enabling loco-manipulation to grasp/carry objects beyond arm reach, even while holding multiple items on palm or back.
Robot Specifications
- Physical & Basic InformationPhysical & Basic
- Performance, Sensing & Control
- Software, Logistics & Integration
Hand Type
anthropomorphic
Intended Robot Type
humanoid
Number of Fingers
5-6
Status
prototype
Thumb Config
opposable
Total DOF
18 (3 DOF per finger across 6 fingers)
DOF Per Finger
3 active joints per finger
Independent Actuators
6 (One per modular finger unit)
Underactuated Design
no
Palm Width (mm)
115 mm
Hand Length (mm)
210 mm
Hand Thickness (mm)
45 mm
Weight (g)
850 g
Materials
silicone (fingers/palm), spring-loaded joints
Finger Link Segments
3 segments per finger
Finger Joint Types
flexure, tendon-driven
Actuator Type
DC motor
Actuator Location
in-hand
Available Countries
Switzerland
Image Gallery
Below images are from EPFL's official sources
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Frequently Asked Questions
Get answers to common questions about this robot
Q1. What is the humanoid robot hand Bimodal Crawling Hand, and what problem does it solve?
The Bimodal Crawling Hand is a robotic end-effector developed by EPFL that combines grasping and autonomous locomotion capabilities. It addresses limitations of traditional robotic hands by enabling independent mobility when detached from its arm, allowing retrieval of objects beyond the arm's reach while maintaining grip on multiple items simultaneously.
Q2. What are the main capabilities and key features of Bimodal Crawling Hand?
The hand features up to six identical silicone-tipped fingers with a fully symmetrical, reversible design. According to EPFL, it can perform 33 different types of human grasping motions, form dual opposable thumbs at either end, and crawl spider-like across surfaces while holding objects. The reversible palm design allows the hand to grip items on either side.
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