Mark Plecnik

See All Human Animal Machine

Articulated Modular Caterpillar Using Spherical Linkages

Articulated Modular Caterpillar Using Spherical Linkages

Gripper Designed by Ellipse Synthesis Across Two Output Modes

Gripper Designed by Ellipse Synthesis Across Two Output Modes

Tuned Directional First-order Kinematics for Low Energy Consumption in Vertical Loading

Tuned Directional First-order Kinematics for Low Energy Consumption in Vertical Loading

Random Monodromy Loops

Random Monodromy Loops

Root Finding by Monodromy Path Tracking

Root Finding by Monodromy Path Tracking

Approximate Synthesis of Spherical Four-bars for Biomimetic Motion

Approximate Synthesis of Spherical Four-bars for Biomimetic Motion

Complete Solutions for the Approximate Synthesis of Spherical Four-bar Function Generators

Complete Solutions for the Approximate Synthesis of Spherical Four-bar Function Generators

Output Mode Switching for Parallel Five-bar Manipulators Using a Graph-based Path Planner

Output Mode Switching for Parallel Five-bar Manipulators Using a Graph-based Path Planner

Passive Gripper

Passive Gripper

The Orbot (OutReach roBOT)

The Orbot (OutReach roBOT)

Student Competition Hexapod Walker

Student Competition Hexapod Walker

Ellipse Synthesis of a Five-bar Linkage

Ellipse Synthesis of a Five-bar Linkage

Singularity Mechanism with a Hopping Reflex

Singularity Mechanism with a Hopping Reflex

Redundant Spatial Leg for Realtime Selection of Backdrivability Characteristics

Redundant Spatial Leg for Realtime Selection of Backdrivability Characteristics

Finger Composed of Spherical and Planar Four-bars

Finger Composed of Spherical and Planar Four-bars

Characteristics of an “S-Curve” Mechanism

Characteristics of an “S-Curve” Mechanism

Fold-Up Flexures from a Resin Printer

Fold-Up Flexures from a Resin Printer

Using a “Saddle Graph” to Design a Four-bar

Using a “Saddle Graph” to Design a Four-bar

Two DOF Polar Motions with Only R Joints

Two DOF Polar Motions with Only R Joints

Airborne Energization Using “S-Curves”

Airborne Energization Using “S-Curves”

Honing PLA-TPU Flexures

Honing PLA-TPU Flexures

Design Optimization With Polynomial Homotopy Continuation

Design Optimization With Polynomial Homotopy Continuation

Evaluating Footpath Shapes on Uneven Terrain

Evaluating Footpath Shapes on Uneven Terrain

2-RSR Pointing Mechanism

2-RSR Pointing Mechanism

Six-bar Project for 3M

Six-bar Project for 3M

The Straight Line Linkages of Alfred B. Kempe

The Straight Line Linkages of Alfred B. Kempe

Mechanism for Rotary Braider for Hydraulic Hose Reinforcement

Mechanism for Rotary Braider for Hydraulic Hose Reinforcement

Toy Design for DASH Robotics

Toy Design for DASH Robotics

Six-bar Design Options for a Walking Gait

Six-bar Design Options for a Walking Gait

Power Modulation Simulation

Power Modulation Simulation

Adjustable Power Modulation Leg Mechanism

Adjustable Power Modulation Leg Mechanism

Talk at ICERM (Brown University)

Talk at ICERM (Brown University)

Spined Gripper Mechanism

Spined Gripper Mechanism

Salto Jumping Robot Design Exploration

Salto Jumping Robot Design Exploration

Cockroach Limb Workspace Analysis

Cockroach Limb Workspace Analysis

Cockroach Limb Modeling

Cockroach Limb Modeling

Art Project

Humanoid Gait Mechanical Reproduction

Humanoid Gait Mechanical Reproduction

Spatial Wing Mechanism

Spatial Wing Mechanism

Torque-Compensating Wrist Linkage Trial With Stroke Survivor

Torque-Compensating Wrist Linkage Trial With Stroke Survivor

Torque-Compensating Assistive Wrist Brace

Torque-Compensating Assistive Wrist Brace

Novel Automotive Suspension Linkages

Novel Automotive Suspension Linkages

Alternating Tripod Walking

Alternating Tripod Walking

Compliant Leg Walking Robot

Compliant Leg Walking Robot

Three Legged Walking Module

Three Legged Walking Module

Design Work on a Compliant Leg Walking Robot

Design Work on a Compliant Leg Walking Robot

Spatial 5-SS Steering Linkage

Spatial 5-SS Steering Linkage

Six-bar Function Generation

Six-bar Function Generation

Shape Change Mechanisms

Shape Change Mechanisms