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Mechanics and Construction / Re: My Advanced Realistic Humanoid Robot Project
« Last post by mklrobo on July 11, 2015, 12:55:24 AM »
 8) Awesome!  8)
A cooler project, I can not imagine!
I will be following your progress!  Good Luck!!  ;D
I would build upon what artbyrobot1 said;
You can make your chassis with fiberglass, cheaply. Light as a feather, stronger than steel,
the result is amazing. Check out Instructables site; it has the steps for this. Good Luck!!  ;) :) :D ;D
I pretty much came to the same conclusion after talking to someone at the DARPA Robotics Challenge Finals.  I want to eventually actually build a production system, so the artificial muscle approach is best left to when there are significant funds and/or a full venture.
Like this :)

What about basic spandex ligaments, and then a thin spandex glove over the whole hand?
All of those options are too expensive or too "lab only" for the average person to use.  I'm making a fully actuated, realistic humanoid hand using servo motors mounted in the arm to control the wrist and fingers using a sort of pulley system like bike brakes use.  I'm planning to have something like 20 motors to control the various finger directions and using human bone shapes and artificial ligaments made of spandex material which is sewn over and into the bones.
Mechanics and Construction / Re: need help for a newbie project
« Last post by artbyrobot1 on July 10, 2015, 03:44:20 PM »
I think you can do this with either a stepper motor or servo motor, an arduino, and a battery.
Mechanics and Construction / Re: Need to study/make my first robot!
« Last post by artbyrobot1 on July 10, 2015, 03:42:19 PM »
I'd recommend planning out a project that sounds SUPER fun to you and then planning it in your mind using creativity and resources you already have available for free or cheap.  Research each problem you hit/roadblock you hit in your mind to solve that problem and continue in this way until you understand everything that needs to be done in the project fairly well in your mind.  Then make drawings and begin!  I'm doing my first robot now and I'm planning for it to be one of the most advanced humanoid robots to date in the world.  Why start with the toy car?
Mechanics and Construction / My Advanced Realistic Humanoid Robot Project
« Last post by artbyrobot1 on July 10, 2015, 03:28:02 PM »
The Project Goal

I'm planning to build an advanced humanoid robot. Think Ex Machina, The Terminator, Data from Star Trek, etc. I decided to avoid teasing by NOT making it a girl. I'd never live that down. If it was a child, I'd be called a pedo. So that leaves male... So just like Data on Star Trek's creator created Data to look just like him, I'm making mine a mirror image of myself! I want the robot to ultimately move like a human, be able to walk, run, jump, do chores, dance, do sports, have conversations realistically, paint, do sculpture, etc. Hope you enjoy following me on my EPIC journey :)

Robot Features Planned

I plan to start out sculpting the left arm and hand, rigging them up with servo motors, connecting that up to a pc, and getting it to grasp. From there I will develop the torso, the skull, the legs, the feet, and the other arm. The bot will have silicone skin and look realistic and move realistic. It will have artificial lungs for cooling. It will have spandex ligaments and pulley systems to imitate muscles. It will have sensors to feel if it bumps into things and it will have webcam eyes. It will have a speaker in the mouth to speak with and the mouth will move to lipsync what it is saying. It will have facial expressions. It will have advanced artificial intelligence. It will run on battery and/or power cable depending on the situation.

Checkout my youtube channel page username "artbyrobot".  I also stream live on weekly.

I'd recommend doing what I'm doing - use modeling clay to sculpt parts, then coat the clay in either thread or cloth dipped in glue to form a hard shell.  You can cut the shell in half to remove the clay after and then glue it back together or leave the clay inside if you don't care about the weight.
Mechanics and Construction / Re: linear actuator release?
« Last post by artbyrobot1 on July 10, 2015, 03:20:52 PM »
I'd pull the weight down on to the spring from the sides of the weight and then have the pullers spread outward so that the weight is free to shoot out
Electronics / Re: What technology lies behind collaborative robots?
« Last post by artbyrobot1 on July 10, 2015, 03:05:37 PM »
All you need is to install a "pressure sensor" into the exoskeleton that senses when the arm or leg is trying to move forward and how hard it is pressing against the exoskeleton and the exoskeleton will then be coded to move along with that pressure and direction to accommodate that movement and enhance/strengthen it.  This "pressure sensor" is also called a strain gauge

pressure sensors (aka strain gauge) x10 for robot                                  $9.94 USD

As you can see from the excerpt from my recent purchases log, I purchased these for a dollar or so EACH on ebay and that included shipping.  They are CHEAP! 
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