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» Recent Threads
  RatingTitle, Username, & Date Last Post Replies Views Forum
Go to first new post Project Motion sensor controlled Tilt and Pan Camera...
ACEX
4 Hours Ago 05:09 PM
39 Minutes Ago 08:53 PM
by Noodle
2 51 Project Showcase
Go to first new post "ALMower" [was: Robotic Lawn Mower] ( 1 2 3 4... Last Page)
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by revoltage
330 14,189 Robotics General Discussion
Go to first new post The new Arduino Wheeled Robot kit
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8 Hours Ago 01:26 PM
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9 117 Off Topic
Go to first new post Where does everyone buy bulk wire?
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Go to first new post Question(s) Motor control
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Go to first new post Project Would anyone be interested in an XMOS challenge?
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16 Hours Ago 04:53 AM
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Go to first new post Beta IK code - Bash plz?
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1 Day Ago 08:59 PM
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Go to first new post Best way to control a spal actuator?
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1 Day Ago 07:25 PM
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Go to first new post Introduce yourself! ( 1 2 3 4... Last Page)
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506 26,700 Off Topic
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319 20,751 Humanoids, Walkers & Crawlers
Go to first new post Recommends on DC gear-motor, that can output >... ( 1 2)
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3 113 Project Showcase
Go to first new post Flavo(u)r of Linux for robotics?
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2 Days Ago 08:46 AM
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Go to first new post Question(s) Any RoboBuilder Users out there?
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1 Week Ago 01:53 AM
3 Days Ago 05:36 PM
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3 201 Robotics General Discussion
Go to first new post Issydunnyet (A mech) ( 1 2 3 4... Last Page)
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05-20-2009 09:55 PM
3 Days Ago 02:59 PM
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52 2,319 Project Showcase
Go to first new post Contest Entry Beetlejuice ( 1 2 3)
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by WGhost9
21 622 Project Showcase
Go to first new post Question(s) Servos or Steppers? ( 1 2 3 4)
ROBOTMAN
3 Weeks Ago 12:01 AM
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by ScuD
34 807 Actuators
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Project Motion sensor controlled Tilt and Pan Camera (wireless)
Jul 02, 2009 - 5:09 PM - by ACEX
Project: Aim: Create a Motion controlled camera.
By this I mean want to link up the Vuzix iWear VR920 image below ( I also have the SDK for this):
and want to attach it to a simple pan and tilt camera mount. I will build this using two servos.

I want to be able to view the image of the camera on the screen in the glasses and want the camera to move as I move my head.

There is a catch however.
I plan on installing this on a RC plane which means this setup has to be both light and small. With preferably a range of up to 500meters.


My real problem is I fail to see how I can connect the motion sensor to the Video camera mount. The audio and... [Read More]
2 Replies | 51 Views
The new Arduino Wheeled Robot kit
Jul 02, 2009 - 9:18 AM - by PedroR
Hi all

We guys on the other side of the ocean got a new Arduino Wheeled Robot kit from Inex.



It is here http://robosavvy.com/store/product_i...roducts_id/547

What is your opinion on it? I do find it a nice proposal considering the price.

Are you guys getting it on trossen as well?

Also, in my case I was considering using an I2C compass for navigation but someone was saying that these are very prone to errors when we hit bumps...
Is this a fact? What is your opinion on it?

Regards
Pedro
4 Replies | 74 Views
Chat Room Down, IRC temp setup.
Jul 01, 2009 - 11:40 AM - by Connor
Connor's Avatar Chat Room is down again, and probably will be for the day, maybe longer.. in the mean time, I've setup a IRC channel #trc on irc.freenode.com, I'm logged in, and everyone is welcome to join me. If you don't have a IRC client, mIRC is a good one.

Thanks, Connor
9 Replies | 117 Views
Where does everyone buy bulk wire?
Jul 01, 2009 - 7:48 PM - by Sienna
Sienna's Avatar Question for the community:

Where does everyone get their wire?

I need some generic hookup wire, stranded, 20-24awg (preferably 22), fairly thin jacket (needs to be able to fit into a 2mm housing), rolls of 100' or more, in many many colors (at least 8) (stipes or other markings are fine, as long as you can identify a single wire in a bundle of at least 8).
Then I would also need some ~12-~16awg red/black wire for power transmission (a couple 15' runs, two 25' runs)

Looking for recommendations for a good source of wire online.

Thanks!
4 Replies | 91 Views
Question(s) Motor control
Jun 29, 2009 - 7:27 PM - by bodhibuilder
bodhibuilder's Avatar Hi everyone,

i am trying to build a motorized robot kind of thing - a few motorized wheels would do the trick i figured.
the thing is, i have only worked with servos so far. i know for a servo you need a servo controller, but for a motor you need a servo controller and also a motor controller.

but i am looking for something simpler, less accurate, and hopefully cheaper!
my question is: is it possible to connect a moderate motor in power (such as the lynxmotion ghm 02 http://www.trossenrobotics.com/store...mm-shaft-.aspx) to some kind of a simple switch on / switch off, serial-ly controlled board? something simple and cheap that will get the job done on a motor like this, or an even more powerful one!? or is it just a dream......
7 Replies | 147 Views
Project Would anyone be interested in an XMOS challenge?
Jun 29, 2009 - 10:33 AM - by XMOS
XMOS's Avatar Hi everyone!


I was curious to know if anyone would be interested in participating in a challenge to make something AWESOME with a new breed of processor which is particularly great for DSP/networking/USB/motor control type applications or more basic things if that is overkill for what you want.



XMOS event driven processors allow you to execute code in parallel which could open up a number of possibilities to evolve your robots "mind" to the next level!



I have some development kits to give away potentially, but before I give away all the details, I just wanted to see if there was any interest.

People have made some cool stuff with our tech before (See videos).

Some details of the processor itself which will be on the dev kit (to be released soon):

- Single core device (Although we do have quad core versions - ask me)
-... [Read More]
6 Replies | 309 Views
Project Second Amendment – Quad Mech
Jun 30, 2009 - 3:03 PM - by Upgrayd
Second Amendment – Quad Mech

Hey everyone Upgrayd here. I have been a lurker for a while now and just recently got the urge to jump in and start my own project. I figured I would share my progress with you all as I go along.

Project Goals:
  • 4 DOF legs
  • Zigbee Wireless
  • Weapon Aiming / Target Distance Sensing
    • Dual weapon system.
    • Each weapon on its own pan mechanism allowing triangulation between the weapon’s center, my robot and the target.
    • Vertical aiming achieved through leg movements.
    • PING!)) or other similar sensor to measure distance between my robot and the target.
  • Modular Weapon System
    • Unless I am mistaken I ‘should’ be able to participate in both the soft core and hardcore weapon class competitions. In order to accommodate this I want to design the weapons
... [Read More]
15 Replies | 266 Views
Beta IK code - Bash plz?
Jul 01, 2009 - 8:59 PM - by Noodle
Here's the code I was using to test the number of calls per 1000ms. Results were around 340Hz. I'm pretty sure I'm doing it right..
Code:
//Shoulder -> forearm -> hand
int a = 58;//mm length from servo 2-3
int c = 110;//mm length from servo 3- End Effector
int i=0;
unsigned long time;

void echo(int echo){
  Serial.println(echo);
}
void moveArm(int legNum, int x, int y,int z){
    //Where should the legs be      
    double g;
      double f;
      double b;
      int d;
      int e;
    double truex;
    int h;
    truex = sqrt(sq(x)+sq(z));
    b = sqrt(sq(truex)+sq(y));    
      f = atan2(y, x) * 180 / PI;
     g = acos((sq(a)-sq(c)+sq(b)) / (2 * a * b)) * 180 / PI;
     d = g + f;    //femur
        e =
... [Read More]
0 Replies | 73 Views
Best way to control a spal actuator?
Jul 01, 2009 - 7:25 PM - by Nunno
What would be the best/cheapest controller to use with a spal actuator in order to make it function as a digital servo? I REALLY want to incorporate these into my project but there is no way im blowing budget on servocity premade ones when I can save money and learn at the same time. The only "For sures" I know right now is that the bot will have an onboard PC for computing and I would like high enough resolution through the actuators for use in an arm. (Interested in the 25lb 2" sec type)

Suggestions more than appreciated..
0 Replies | 56 Views
RoboGames 2009 vid
Jun 22, 2009 - 5:54 PM - by xx2747
xx2747's Avatar Was on a RV trip and didn't have anything to do.
So here's piece of a video I made in like 20 minutes using pix I took in RoboGames 2009.
Sorry - there's not much combots and a lot of humanoid pictures.
This is only part of the video - I'll upload the whole thing later.

Oh - I think The Final Countdown is an awesome song!

... [Read More]
7 Replies | 275 Views
Recommends on DC gear-motor, that can output > 10ft/lbs
Jun 01, 2009 - 10:43 PM - by scowby
Hi, I'm looking for a DC gear motor that can output at least some decent torque, say 10 foot-pounds of torque. Preferably the "flywheel" would already be some sort of gear meshing to interface with other parts.

Anyone have any recommendations on finding something like that? A supplier of motors or some piece that could be ripped out of something?

Thanks!
11 Replies | 402 Views
Project Barbie Web Rover
Jun 30, 2009 - 8:24 AM - by aloishis89
I and two of my friends have been working on an internet rover based off of a kids Barbie Powerwheels car. We are still adding stuff to it, but the majority of it is done. The main goal was to spend as little money as possible. You can see the full writeup with pictures and video here:

http://www.prism.gatech.edu/~hscott7/rover/
3 Replies | 113 Views
Flavo(u)r of Linux for robotics?
Jun 26, 2009 - 8:40 AM - by shobley
Sometime ago I created a disk image of XP for my robotic K9 - it runs from a flash drive on a mini-ITX board and uses all the neat tricks created for automobile computing installation.

I would really like to replace this with Linux - are there any recommendations for which flavour of Linux to use? And are there any good libraries or dev tools for this kind of thing?

Unfortunately K9 has a small 8" touch screen - so I guess I would need to run some kind of desktop and develop for this environment. Rather than running "headless".

Vision processing would be important, along with socket based communications + wireless networking. Audio/Video playback would also be nice.

...and maybe the Phidget library too...

Steve
7 Replies | 239 Views
Question(s) Any RoboBuilder Users out there?
Jun 21, 2009 - 1:53 AM - by dragonsfire
dragonsfire's Avatar Hi...my name is Adam and I have a .... *sweating* *looking around*...an electronics problem. Glad I got that off my chest. Now, I am new to robotics and to forums, it took my an hour to figure out how to make a thread. Feeling a little dumb right now, so be gentle with me. I am getting a RoboBuilder in the mail next week and I was wanting to get people's feedback or tips with it. I don't imagine I will have many problems with building or anything like that, I just noticed there is not a whole lot of posts on RoboBuilders. Mostly just that they are for beginners, that's me. Is there anything I just watch out for avoid, not run the servos too fast too long? Should I avoid trying to program back flips of the kitchen table? That sort of thing (the last one is a joke just for those wondering, I am new to robotics, not common sense). Please fill me in on your expierences if any. I love this place.
3 Replies | 201 Views
Issydunnyet (A mech)
May 20, 2009 - 9:55 PM - by lnxfergy
lnxfergy's Avatar Figured I would post a few pics and links related to my entry for mech warfare at robogames. I decided I might have just enough time, so I started building this Saturday night. Issy is built of a bioloid kit, with AVR/XBee control.

After a few days of work, I have an AVR controller on board, still gotta finish the walking gaits on the AVR (and tune the existing ones, for the higher weight now that I have the camera/gun mounted).

-Fergs



Additional pictures:
http://forums.trossenrobotics.com/ga...=3&userid=1768
http://forums.trossenrobotics.com/ga...=3&userid=1768

[Read More]
52 Replies | 2,319 Views
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