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Is it feasible?
Log from Acoustic Myography/Mechanomyography Experiments
I am not an electronic engineer so a lot of the process below is how, as an amateur, I go about implementing and testing my ideas. Basically a lot of trial and error and experimentation as I don't have the depth of knowledge or training to do otherwise...

Surface mount soldering: Easier than you might expect.
Log from ODrive - High performance motor control
The design of the ODrive is almost entirely surface mount, the only exceptions being some of the heavy duty screw terminals and a couple of rows of headers for IO. This design choice is likely not a surprise to most of you, SMD's are usually cheaper,...

Part 16 - shlonkin
Log from A sci-fi adventure by hackaday.io
A loud alarm pulled Lee from his much needed slumber. He sat up instantly, adrenaline pulling his reluctant muscles off the thin bunk. His eyes darted between the three others who shared the sleeping quarters while his mind shook off the haze of sleep....

Part 19 - shlonkin
Log from A sci-fi adventure by hackaday.io
It was getting dark when Kenta's transport reached the outlying buildings of Hab-4. They were only hazardous materials storage and power facilities, but they were a beacon of hope to Kenta. She drove on, slumped over the steering wheel breathing shallowly....

Validating The DH 4.0 v4 Spectrometer using - MALACHITE GREEN (Oxalate)
Log from DAV5 V2.1 Spectrometer
Environmental Impact of Malachite GreenHere is an excerpt from a study done by The National Center for Biotechnology Information:“the wide range of toxicological effects of malachite green (MG), a triarylmethane dye on various fish species and...

A New Target
Log from Zombie Snails: Mindless Methodical Movement
Upon reading a new paper, I have determined a new location for the electrode (when I get that point in the experiment): the esophageal trunk! Ramakrishnan et al. in 2014 studied the buccal A cluster (BAC) cells that fill up the buccal ganglia, 40 in...

Building The First Prototype
Log from Zizzy: A Personal Robot Assistant
It took over a year to make the first working prototype of the personal robot. During that time, I 3D printed and experimented with over 240 designs for artificial muscles. The most powerful muscles with the minimum volume were eventually used to power...

Testing The Robot
Log from Zizzy: A Personal Robot Assistant
The robot as tested so far is fairly strong and quite reliable. The 3D printed valves are fully functional but the muscles and arm joints could be improved upon.The video shows the robot in a pre-programmed sequence--picking up a water tube and power...

Improving The Robot
Log from Zizzy: A Personal Robot Assistant
Noise ProblemsAs the video reveals, the air pump is fairly loud. I am trying to find small battery operated compressors that are less noisy. If anyone knows of a good source for small and quiet air pumps, please let me know.Power ProblemsSince testing...

Parts That Are Being Improved
Log from Zizzy: A Personal Robot Assistant
To finish this robot and make it fully functional, here are some more things that need further development:Finish Face And Voice PhrasesThe face is not yet fully functional and new words and phrases need to be added to the vocabulary.Full Remote ControlAt...

Improving The Artificial Muscles And Arm Exoskeleton
Log from Zizzy: A Personal Robot Assistant
I have just finished designing and testing new 3d printed artificial muscles to replace the previous ones. They occupy a slightly larger volume and are considerably stronger than the previous versions. In addition, the plugs that held them in place have...

The Software: Principle of Operation
Log from OpenLD: Lucid Dreaming Research Platform
With the hardware build complete, along with its firmware, it is time to begin creating the crucial part of this project: the brainwave analysis software. This program will analyze the EEG brainwaves received from the OpenLD hardware by Bluetooth and...

Actuonix Motion Devices Inc. sponsors actuators
Log from Building an Assistive Robotic Arm
Update - August 15thAwesome news, Ian from Actuonix Motion Devices Inc. has kindly offered to sponsor the actuators needed for this project. I'm now thinking about the mechanics of the solution so that we can order the most appropriate versions. James...

Using Machine learning to boost MyoElectric signal recognition
Log from Building an Assistive Robotic Arm
Super Excited today. Lorelei and I figured out how to reliably get a signal from her arm to control the robotic prosthetic! (Disclaimer the video and lighting is poor but I was just excited to quickly show you all).Background: Up until now we have been...

Working with EMG (Electromyography)
Log from BipEx - Biped Exoskeleton
We designed an amplifier and filter circuit for EMG. EMG is electromyography. We used EMG to detect the twitching of muscles so that the exoskeleton's pneumatic pistons can be controlled on the basis of which joint the user wants to move.The EMG circuit...

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