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21
Mechanics and Construction / Re: newbie to robotics
« Last post by jester65 on August 10, 2017, 06:55:29 AM »
well flow chart what all you want the robot to be able to do when done , we know its going to have to be mobile and have to carry payload  so you kind of need to define work envelope and parameters for the robot to perform, how fast and how much for how long is where Id start, hope this might help a little bit.
22
Robot Videos / Re: One of my proud creations. The super cheap humanoid
« Last post by PerceptualRobots on August 10, 2017, 04:16:59 AM »
Looks very interesting, I am interested in applying my approach to a humanoid robot. Where do I find the write-ups?

My area is control systems which may be of interest. See my initial post.

Where are you based?

Regards,
Rupert

23
Misc / Re-writing robotics
« Last post by PerceptualRobots on August 10, 2017, 04:11:10 AM »
Hello,

You may be interested in a new approach to robotics described in my paper which has just been published in the Artificial Life journal.

"A General Architecture for Robotics Systems: A Perception-Based Approach to Artificial Life",

http://www.mitpressjournals.org/doi/pdf/10.1162/ARTL_a_00229.

The approach is based on the concept that the behaviour of living systems is a process of controlling perceptions, rather than controlling or computing (behavioural) output. In principle, the complex behaviour that we observe emerges just from a hierarchy of these simple feedback control systems, and accounts for all types and levels of behaviour.

Applying this perspective to robotics has significant implications, such as explicit, predictive models are not required, the systems are inherently adaptive and are not prone to unpredictable disturbances or changes in system parameters (e.g. weight or length of limbs), they are computationally lightweight and are comprised of a simple, universal process.

For example, this video shows control of a robot arm without the need for the complexity of predictive modelling or kinematics,

If you are not able to access the paper let me know and I can send you a copy.

If you'd like to hear about the progress of the development of this new technology you can subscribe to my newsletter at the top of the website (perceptualrobots.com).

Regards,
Rupert

www.perceptualrobots.com
24
Electronics / controller for brushless DC electrocraft motor
« Last post by jester65 on August 09, 2017, 08:53:42 PM »
Hey ,
 I was wondering if anybody could give me some info on what i need to make a couple motors I bought off Ebay for a R/C lawnmower build  and ended up with pride electrocraft  brushless dc motors  off a quantum from everything I can gather ,  Im  trying to figure my way out of this  and can I just get a controller that works with those type motors and  then adapt from there  If so does anybody know which contoller I need  maybe numbers ?   the number on the motor are electrocraft  model number BDC-3330 part no. 1842419053   this information is just what I read through the evening so If I have mis spoke  I apologies Im just trying to  bail myself out of a pickle at the moment  from buying wrong type motor , I was thinking a simple brushed DC motor  black and red and away we go,  any help  would be greatly appreciated
25
For Sale / Re: For sale: Salvaged wheelchair motors - (3) pair / (6) tota
« Last post by jester65 on August 09, 2017, 01:09:01 PM »
Are motors still available ?  please email back



 Thanks
[email protected]
26
Electronics / State of the art in robot motion controllers
« Last post by k1200 on August 08, 2017, 01:17:18 PM »
Hi All,

I've spend a lot of time searching for a high performance closed loop motion control solution that can provide me precision PID control for position, velocity and torque control of DC motors. If I understand it correctly, most robot builders use custom microcontroller based implementations. Are there any off the shelf solutions besides Dynamixel from Robotis which I understand is the benchmark in the research/DIY robotics space.

http://en.robotis.com/index/product.php?cate_code=101010

The others than I've come across is the O-Drive

https://hackaday.io/project/11583-odrive-high-performance-motor-control but its not clear if it provides feedback control.

and the many low cost controllers on RobotShop and Pololu which hardly provide basic position control.

We want to build a humanoid robot (around 16 degrees of freedom for the two legs) but our finances arent allowing us to spend the greens on these expensive Dynamixel motors. Wondering if anyone knew of a solution that could work on generic motors that we could hook up encoders to but which allows easy command and control of  many motors

Many thanks!
27
Software / Re: hello which software are used in robots??
« Last post by darrell24015 on August 07, 2017, 10:36:29 AM »
With robots based on a Raspberry Pi, I usually program the robot using the Python language.
28
Mechanics and Construction / What are the advantages of industrial robots?
« Last post by Rosypeter on August 04, 2017, 02:22:25 AM »
What are the advantages of industrial robots?
29
Mechanics and Construction / Re: robot pressure washer?
« Last post by 20GT on August 01, 2017, 07:30:14 PM »
This forum is dead
30
Misc / [advertisement] Massive Servo & Extension SALE!
« Last post by ServoCity on July 31, 2017, 11:11:38 AM »

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