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31
I've seen a lot of hacks with RoboSapien but most of them involve large amounts of sticky tape resulting in a messy finish. Here's some pictures of my modded RoboSapien equipped with a Raspberry Pi (fully detachable and replaceable) and USB Web Cam. I've used adhesive pads and blots to attach the goodies.  Let me know what you think.









32
Software / Re: $50 Code
« Last post by mklrobo on January 28, 2015, 07:39:30 AM »
 :) hello!
I am new to the forum, and do not have one of those controllers. I do, however, know C++ and
some other languages. I appreciate you bringing this to attention, as I would like to sidestep
any possible setbacks until the manufacturer makes the upgrades you have indicated. Thanks!
 :D :D
33
Misc / Re: Here's an LSM9DS1 Accelerometer/Magnetometer/Gyro for your projects : )
« Last post by mklrobo on January 28, 2015, 07:34:28 AM »
 :) Hello!
I was planning on using an Axon microcotroller to control 8 servos. And yes, the programming will
be a nightmare. I have to be mindful of spacing, as this affects the angles, and thustly, the programming
to control them. (Feedback for positions will be needed, even though servo precision is there)
I have not used a board like the LSM9DS1 before, and so, my plight for research on the coding will
be first, following my choice of microcontroller. (Axon, which one, don't know yet)  I am relatively new to
this forum, so it will take awhile to adapt to the new items that are avaliable here.
Specs of the legs - two knees bent forward, two knees bent backward.(like a flamingo).
The motion of the walking, I have found, resembles that of a SINE wave, in my pursudo-programming.(?)
I wonder if the humans brain generates the same "programming" ? would be simpler to control, and balance.
hieght of the legs will be about 2 foot, upper body will be about 2 foot. The walking platform will be able to
"transform" between wheels and legs, and work load demands. Thanks for your help!  ;D
34
Software / $50 Code
« Last post by Zevoo on January 28, 2015, 06:18:16 AM »
Could someone change the code in the $50 dollar robot so that the newest version of the Atmel studio understands it and I can finally program my robot?
35
Misc / Re: Here's an LSM9DS1 Accelerometer/Magnetometer/Gyro for your projects : )
« Last post by NorDevX on January 27, 2015, 09:48:27 PM »
It would absolutely help with knowing the orientation of your robot.  If you can be more specific to what you want to do with it I can let you know if I think it's possible.  I think you'll have much more of a challenge dealing with all those motors though.  I just put up some arduino code for the LSM9DS1 breakout board if you go to the link above.
36
Misc / Re: Need help with identification of Maxon EC Motor
« Last post by mklrobo on January 27, 2015, 04:09:26 PM »
 :) Hello!
In the United States, the Thomas Registry has all the listings of the manufacturers.
I would seek out the counterpart in the European theater. Good Luck!   :)
37
Mechanics and Construction / Re: Why don't robots have toes?
« Last post by mklrobo on January 27, 2015, 03:59:06 PM »
 :) Hello!
 I have only seen toes on the terminator robots, but they were fiction.
In the real world, I have not seen any robots with toes that resemble
human toes.
I have seen alot of experimental walking robots on Youtube that did a fine
job of walking without toes, but the server that controlled them was not far
away.
I imagine, in the future, a real autonomous huminoid robot may be very different
from what we expect now. Power usage, physical work load, and academic work load
will dictate the design, I expect.
Interesting question, never really thought of that before....  ???
38
 :)  Hello!
I have played with Nitinol (muscle wires) to use for a robotic project. I could not get the
displacement of the wires that was advertised. (lilft per amp)
The heat of the wire was so small, I could not detect it, with my fingers, and I assume
that putting any temperature sensor on it may prove obtuse, because  the wire needs
room to work.
I was going to use phase control for the current control part, and a current measuring
circuit kit (Jameco sells kits) for the current.
PWM may be a more efficent way to control the current and thus, displacement.
Electronic kits are avaliable that can be plug and play, and probably provide info to
your software, that may be avaliable.
Whatever method you use, you undoubtly will have to make a current vs. displacement chart that
is in context with your control programming; This part will only come with experimentation, unless you
know someone who has already done it. (Youtube?)
Interesting project, Keep me posted.......... ;D
39
Mechanics and Construction / Why don't robots have toes?
« Last post by plooby on January 27, 2015, 03:13:43 PM »
I've seen all these robots like Asimo, which sort of squat because they can't balance properly with their legs straight. The reason? These robots have no toes or heals! No wonder they keep falling over!

Try leaning forward you will see you straighten yourself up by pushing with your toes or lifting your heal forward to reposition your weight.

Have you ever seen a robot with toes?
40
I am building a robotic hand / arm system with the goal of using the Nylon fishing line muscles.
Like these: http://bit.ly/1ENTS0S

My area of expertise is in software (I'm a developer), but with much less knowledge in the electronic hardware area.

Could I get some suggestions for building a system for controlling current for the heating wires?
I am thinking of an Arduino / Raspberry Pi paring - the Arduino for the analog current / movement sensor controls, and the Pi for processing sensor feedback and managing the dexterous movement complexities.

What sort of circuits would I need to build to control current flow?
I have 28 GA Nicrome 60 resistance wire for the heating "elements".

I'm thinking I will use a temperature sensor to dynamically cap the amount of current flowing to a muscle wire.

Suggestions?
Thanks
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