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  1. Replies
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    Voltage sensor more sensitive than +- 80mV

    Anyone have a good voltage sensor they use?

    I'm currently using this one:

    http://www.phidgets.com/products.php?category=8&product_id=1135_0


    But it does not seem to be picking up a voltage...
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    Re: interface with a claw machine prize game

    Hmmm...cool, I will hafta check these out and get back to you. I am currently trying to locate a claw machine supplier that I could interface with easily. My thoughts are either to hook into the...
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    Re: interface with a claw machine prize game

    Roger that - I didn't know whether I posted in an appropriately named forum.

    Not quite sure what category this would fall under: software, interface boards, or actual mechanics of operation.

    No...
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    interface with a claw machine prize game

    Has anyone interfaced with one of these "claw machines" such as the one found here

    http://www.coinopexpress.com/products/parts/crane_machine_parts/Toy_Story_Crane_Kit_7147.html

    My goal...
  5. Thread: fighting robot

    by scowby
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    Re: fighting robot

    I like this project. What about the wheel motors? Problem is finding a good power/weight ratio. It looks like your tanks go fast. What kind of motors are you using?
  6. Thread: fighting robot

    by scowby
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    Re: fighting robot

    Cool. Do you have a website? How did you construct your vehicles? It would be interesting to see how your cars were designed along with the led-laser light pointers and guns on top.

    I like it.
  7. Re: How to connect to FIRST CIM Motor (M4-R0062-12)?

    I cannot tell you how much these simple references have helped me.

    I just learned about what "spur gears" and "timing pulleys" are. Also, the andymark.com website helped tremendously.

    It looks...
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    Re: How would you build a Dynamixel torso joint?

    Regarding rotational position "slop:" are there any position sensors you could use to actually measure the position of where the torso is at? For example, you may think you've rotated it 45-degrees,...
  9. Re: How to connect to FIRST CIM Motor (M4-R0062-12)?

    Interesting. I'm browsing around to see what I see.

    What am I looking for? Isn't this a standard thing, where you would need to connect "something" to the driveshaft of the motor? I almost...
  10. How to connect to FIRST CIM Motor (M4-R0062-12)?

    I just got a couple of these motors:

    http://www.trossenrobotics.com/store/p/5142-FIRST-CIM-Motor.aspx

    And I'm now realizing I need a way to "connect" something to the spindle of the motor...
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    Re: Want to build a backhoe or a crane ARM

    "Rams." Yea, I guess that's what you would call it. A "ram actuator." Perhaps that is the right way to go long term. Where can I get one of these types of actuators?
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    Re: Want to build a backhoe or a crane ARM

    Hey darkback2, thanks for the link you sent. Looks very helpful to examine the mechanics of the arm.

    I'm going to go through this and see what I come up with. My first stab is going to be with a...
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    Want to build a backhoe or a crane ARM

    I would like to build a backhoe robot arm. It could also be something like a crane, where it's not just a bucket at the end, but more like a claw, or a hand.

    I have a question as to what parts I...
  14. Re: Recommends on DC gear-motor, that can output > 10ft/lbs

    Definitely I think this is something I need to learn.

    Plus, there's a different in controlling the thing using the command-line in linux and using a programming language. I chose 'c' since the...
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    Re: correct Set Screw Hubs for AME-218 gear motor

    Yea, I have access to a drill press - I guess that's one option, to bore out the hole. Preferably I'd be able to find something stock, of course.

    Nothing bigger than .375" out there?? Wow, I'm...
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    correct Set Screw Hubs for AME-218 gear motor

    I have an AME-218 gear motor with a .39" shaft that I am trying to find set screw hubs, like the ones available at servocity.com (http://servocity.com/html/set_screw_hubs.html), except I cannot find...
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    Re: Anyone programmed the Phidget MotorControlHC?

    Hey, I got the board detected. I found a piece of sample source code which I (eventually) got to compile.

    The function is: CPhidgetMotorControl_create();

    Anyways, just saying that I found it. ...
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    Anyone programmed the Phidget MotorControlHC?

    Hey all, has anyone programmed the phidget MotorControlHC?

    http://www.phidgets.com/products.php?product_id=1064

    I am looking for a *very* simple program in 'c' for Linux.

    I know how to...
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    Re: How to get 12 or more Mechs competing next year.

    I saw a post here about using a TrendNET wireless webcam to aid in computer vision. I can't remember where the post is, but could you guys use this as some sort of "standard" camera setup?
  20. Re: Recommends on DC gear-motor, that can output > 10ft/lbs

    Just on the motor controller (going with the phidgets vs SyRen), I have experience programming phidgets so, to me, the ramp up time figuring out how to interface this with a computer (linux laptop)...
  21. Re: Recommends on DC gear-motor, that can output > 10ft/lbs

    Okay, I've ordered these parts

    - the AME 218 motor
    - the Phidget HC motor controller
    - the 25A power supply from Checkpoint

    Let the games begin!!!

    Thanks for your help, I'll put up a...
  22. News/Announcement Re: Want to win a Bioloid? Announcing the TRC Tutorial Contest!

    When does the contest end? How will entries be judged?
  23. Thread: Motor control

    by scowby
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    Question(s) Re: Motor control

    Would a phidget interface kit 0/0/4 work?

    http://www.trossenrobotics.com/store/p/3203-InterfaceKit-0-0-4.aspx
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    Re: "ALMower" [was: Robotic Lawn Mower]

    I believe one of the "real" solutions to the robo-mowing problem has to do with setting up some sort of beacon system, where the robot knows where it is in reference to it's mapped out perimeter...
  25. Re: Recommends on DC gear-motor, that can output > 10ft/lbs

    What about this for a motor controller?

    http://www.trossenrobotics.com/PhidgetMotorControl-HC.aspx

    Does Trossen sell the LV model, for single motor control? i couldn't find it, only could find...
  26. Re: Recommends on DC gear-motor, that can output > 10ft/lbs

    Great. So sounds like

    1) the AME-218 series motor
    2) the motor controller: http://www.trossenrobotics.com/store/p/5108-SyRen-25A-regenerative-motor-driver.aspx
    3) and the power supply:...
  27. Re: Recommends on DC gear-motor, that can output > 10ft/lbs

    I'm planning to hookup one motor only at this time. The AME-218 series pull 1.5 Amp w/ no load, and somewhere around 22 Amp at "stall" load.

    The idea is that this gear motor will power a little...
  28. Re: Recommends on DC gear-motor, that can output > 10ft/lbs

    So, I'm trying to put this whole picture together.

    I've got 3 pieces:
    1) power supply
    2) motor controller (adjust motor RPM)
    3) motor

    I've got 1 out of the 3 pieces of the equation and...
  29. Re: Recommends on DC gear-motor, that can output > 10ft/lbs

    One question about these gear motors - can the RPM's be controlled very easily? Like, say I want this thing to spin up/down, can I just vary the voltage I'm sending to it in order to change the RPMs?
  30. Re: Looking for a good camera? - Trendnet 110 wireless cam & teardown

    This is good stuff, but I'm trying to take the output of this webcam and place it into a web page. Any ideas on that?
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    Re: Where to Start with Vision?

    Hey DC Robotic - did you ever figure out what you're going to do with this?
  32. Recommends on DC gear-motor, that can output > 10ft/lbs

    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...
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    Re: Where to Start with Vision?

    I guess one of the questions I would have is: what type of interface are you putting the camera into? Like, what is "reading" the video feed in order to make the robot "see?" Are you running...
  34. Re: Looking for a good camera? - Trendnet 110 wireless cam & teardown

    Does anyone have the <embed> code for putting the camera into a webpage? Like, if you wanted to make the cam appear as some sort of <iframe> or whatever inside a page?
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