https://www.thanehunt.com/work daily 1.0 2022-01-31 https://images.squarespace-cdn.com/content/v1/566f7a0fa128e649ae4ea631/1493941280520-2UNVEZ1244R39WHTR83F/cycloid2.jpg My Work https://images.squarespace-cdn.com/content/v1/566f7a0fa128e649ae4ea631/1450217628623-GTTXW5YM8WAJBO216VE9/PIC_0166.JPG My Work An acrylic prototype of the multi-valve As liquid flows in from the manifold above, the cam within the main disk rotates, opening one port at a time. This version was able to restrict flow 100% at pressures up to 80 PSI. I believe that with further optimization, a smaller servo motor could be used, which would reduce the total weight. https://images.squarespace-cdn.com/content/v1/566f7a0fa128e649ae4ea631/1629247353092-XUQBT8EVSJ1ZKBB44LMV/prototypeLeg.png My Work - The Prototype The earliest prototypes were made from fairly simple and off-the-shelf components. As the program advanced, the whole thing got much sleeker. https://images.squarespace-cdn.com/content/v1/566f7a0fa128e649ae4ea631/1493647085680-OQBBVGAX8PZ2F4IMF5OJ/1.jpg My Work - Sever is an easy-to-use IoT device A picture of the current Sever box. There are LEDs for indicating the state of the WiFi connection and whether or not a USB device is currently plugged in. https://images.squarespace-cdn.com/content/v1/566f7a0fa128e649ae4ea631/1629307394525-6GECUX6KCGV5HHK9XKR7/formlabs-form3-02.jpg My Work - The Form 3 SLA 3D Printer I have spent most of my tenure at Formlabs working on this machine, the Form 3. https://images.squarespace-cdn.com/content/v1/566f7a0fa128e649ae4ea631/1450213585928-0UBQHM6TSHSMBA4UPW9O/Hand_Orthosis_Design.png My Work - Hand Strength Augmentation Device for Rehabilitation This is a concept rendering I did for a grant proposal. The muscles used to push the fingers closed are the same type as the ones used in "Position Control of a Fluidic Muscle" and "Quadrupedal Robot with Fluidic Muscles". You can learn more about these muscles in the publication " "Hydro Muscle –A Novel Soft Fluidic Actuator" on my publications page. https://images.squarespace-cdn.com/content/v1/566f7a0fa128e649ae4ea631/1629309915725-3K8WH1K970MAMYW5AHTK/plotter5.jpeg My Work This is the robot in its current state of completion https://images.squarespace-cdn.com/content/v1/566f7a0fa128e649ae4ea631/1629315639435-WRYG1OR23GU1XH7JIL2O/WoodCylinder.jpeg My Work https://images.squarespace-cdn.com/content/v1/566f7a0fa128e649ae4ea631/1643656855844-NHHN90IICG4C5LTHLQJC/PXL_20220109_022654570.jpg My Work https://images.squarespace-cdn.com/content/v1/566f7a0fa128e649ae4ea631/1450214156506-2ZA288P1H13AQVJEI5G2/image-asset.jpeg My Work - Hydro Muscle Test I performed this simple experiment to see if a fluidic muscle could be controlled in a useful way without the use of very high-speed (e.g. piezo) valves or proportional valves. There was one plain DC solenoid valve to let water in, and a second one to release it back to ground pressure. The actuation time of these solenoid valves was approximately 100 milliseconds. The control algorithm used a Proportional-Derivative controller coupled with a Feed-forward controller. The only input parameter that the control system had was the timing of the two solenoid valves. Input pressure was held constant. The pressure release (drain) solenoid had a smaller orifice size and therefore flow rate. When both valves were open, the muscle would slowly expand. When the input valve was open and the output valve was closed, the muscle expanded rapidly. Although inefficient in terms of required pump energy use, this technique could still be used in immobile applications, or applications requiring infrequent actuation. Return force for the swinging arm was provided by gravity in order to prevent the spring-mode that a return spring would overlay in the system. The position feedback was accomplished using a red LED mounted to the end of the arm, a webcam, and the Image Acquisition Toolbox in Matlab. https://images.squarespace-cdn.com/content/v1/566f7a0fa128e649ae4ea631/1450233655432-1O4XIVPW96FUVB7YQ14T/2013-07-09+13.59.29-1.jpg My Work https://images.squarespace-cdn.com/content/v1/566f7a0fa128e649ae4ea631/1450285047737-YF3D4TU38FXX8CSKUG9T/image-asset.jpeg My Work - Running Robot Simulation This is a simulation I did a few years ago to experiment with some ideas in underactuated systems. Although a planar simulation, it represents a quadruped robot with motions acting at the hips. The knees move via a linkage, and the ankles are passive. My inspiration for this design came to me at the zoo when I saw an ostrich running in circles. https://images.squarespace-cdn.com/content/v1/566f7a0fa128e649ae4ea631/1450198674747-VYIBR1J7MCGN7TSNCGZS/covershot.png My Work https://images.squarespace-cdn.com/content/v1/566f7a0fa128e649ae4ea631/1450199320869-WUL4ROHOK5FDRJWZ3DSF/hydrodogthumbnail.png My Work https://www.thanehunt.com/publications daily 0.75 2017-05-09 https://www.thanehunt.com/about-me daily 0.75 2022-01-31 https://images.squarespace-cdn.com/content/v1/566f7a0fa128e649ae4ea631/1629304846438-TEUQBA7IIU9XXZPFE32S/me.jpeg About me