Spike Dynamics
@Spike_Dynamics
This is Sasha Sergeev, founder of Spike Dynamics - we develop ultra-compact, powerful, long stroke linear piezo motors for Robots Open-source - CERN OHL v2
An interesting structure. I like this a lot.
Should humanoids have tails? Current legged robots struggle with center of mass control and quick stabilization. Adding more DOF to legs gets complicated fast. Nature already solved this: Cheetahs, kangaroos, dinosaurs – they use tails for dynamic balance, sharp turns, and…
Hand design idea with an actuator on every knuckle. Knucklehead? No?
The AA1 amplified actuator design enhances the small piezo travel by up to 15 times, delivering greater displacement with precision.
This is a great starting point for making linear actuators, aimed at space, military, and MedTech uses.
1/ 🇺🇸 Today, @CAForever submitted detailed plans for the next great American city, an hour north of Silicon Valley, including: Solano Foundry, America’s largest manufacturing park, Solano Shipyard, our largest shipyard, and walkable neighborhoods for 400,000 Californians.
Interview with me. roboticsandautomationnews.com/2025/10/15/int…
Clip: Scott Walter on Custom Linear and Rotary Actuator Design in Humano... youtu.be/qpYm1gF8b0s?si… via @YouTube
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Clip: Scott Walter on Custom Linear and Rotary Actuator Design in...
Food for thoughts
How Many DoFs in the Human Hand? "Anatomically, the five digits of the hand comprise a total of 15 joints, which afford approximately 20 DOFs (Stockwell 1981; Jones 1997)." "The general conclusion of these studies is that the effective dimensionality of the human hand is much…
This one looks good!
ManiBot's work, inspired by BigLazyRobot studio, experimented with new connection structures and binding new methods in the shoulder blades and wrists.
Cecilia is a wheel-legged jumping robot, designed for modular payload configurations. This is an undergraduate Capstone project built by McMaster mechanical and mechatronics students. Video Credit: Kino Robotics #robotics #robots #engineering #technology…
This one is better. The movements are almost right, just should be smaller amplitude. The lower ring is a problem.
Damn, I wanted to create an animation of our product, but this damn artificially intellected thing doesn't understand what I'm explaining to it! This is wrong! wrong! wrong!
When the piezostack extends, it drives the spreading of lever arms (or legs???), achieving a leverage ratio of 10–15, as validated by finite element analysis (FEA) modeling. This is how 500 N and 10 µm transform into 50 N and 100 µm with a 10:1 leverage ratio.
Spiketon M3 multistep actuator. The carriage moves along two wires. The carriage lifts 10kg. This one is slow. We will publish the faster version soon. Opensource.
The similarity between hand tremors in robots and humans is actually greater than it may seem at first glance. A delayed or inaccurate control signal, insufficient precision of movements, slow mechanical response. One of the method for robots to remove it - controlled stiffness.
This is a muscle as well (Spiketon M3). Its most remarkable feature is adjustable stiffness, which eliminates tremor in robotic hands like they are alcoholics.
A version of artificial muscle built with three piezostacks (not shown). It advances step by step, exerting high force on the beige wire.
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