Human-Like Robotic Hand
The robotic hand is both an engineering project and a learning system. It connects CAD, mechanical linkages, actuation, electronics, sensing, control, and physical experimentation.
Designing finger links and assemblies before introducing actuation, electronics, and control.
Foundation
The problem
A robotic hand appears familiar from the outside, but recreating its motion requires decisions about joints, links, actuation, force, sensing, control, constraints, and manufacturability.
Why it matters
The project creates a concrete environment where fragmented knowledge must become integrated engineering capability.
Current system
How it currently works
The present model
Finger links are modeled parametrically in SolidWorks.
Hole positions preserve geometric relationships when dimensions change.
Sketches are fully defined before extrusion.
Assemblies are used to study link relationships and motion.
The project will later expand toward Arduino and control systems.
Inquiry
Open investigation
Questions guiding the work
How many degrees of freedom are practically necessary?
What actuation method should be used?
How should tendon-like motion be represented mechanically?
What sensing is required for useful grasping?
Epistemic state
Current understanding
What appears known—and what does not
What I presently understand
A sketch must encode design intent, not only visual shape.
Parametric relationships reduce failure during design changes.
A finger must be understood as a linkage system.
Mechanical geometry constrains future control possibilities.
What remains unresolved
The final actuation method remains undecided.
The required balance between human likeness and mechanical simplicity is unclear.
The sensing and control architecture has not yet been selected.
Progress
Development history
Project timeline
Assembly exploration
Began examining how separate links behave when assembled.
First 3D link
Moved the design from a two-dimensional sketch into a three-dimensional component.
SolidWorks fundamentals
Developed the first fully defined parametric finger-link sketch.
Episode 1
Started the public attempt to build a human-like robotic hand.
Connections
Related work