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  • jwatte's Avatar
    10 Hours Ago
    Yes, servo numbers matter; they are very important! You may need to connect one at a time to the Arbotix board and run the servo management...
    1 replies | 31 view(s)
  • jwatte's Avatar
    13 Hours Ago
    For my third match, Don beat me fair and square in a match where the only malfunction was my gun dry firing at times, and then I ended up collecting...
    3 replies | 106 view(s)
  • jwatte's Avatar
    13 Hours Ago
    Apparently the FPV world now has a feature called "Smart Audio" to control the video transmitters, including setting output power and channel...
    0 replies | 34 view(s)
  • jwatte's Avatar
    20 Hours Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    When I click "Dynamixel 2.0" it only lists: XL-320 XM430-W210 XM430-W350 Maybe it can actually support others, too? Anyway, I have an...
    44 replies | 1992 view(s)
  • jwatte's Avatar
    1 Day Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    Actually, R+ Manager 2.0 doesn't list MX-64 as a supported product.
    44 replies | 1992 view(s)
  • jwatte's Avatar
    1 Day Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    I clicked the "version 1" option when downloading R+, so I'm hoping that's good? The "scan" button first tries a version 2 scan, which doesn't find...
    44 replies | 1992 view(s)
  • jwatte's Avatar
    2 Days Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    I beat Odin! I lost against '99! One or the servos lost its position, and curled in on itself during that second fight today, so I was walking...
    44 replies | 1992 view(s)
  • jwatte's Avatar
    2 Days Ago
    The OpenCM9.04 has a USB port, so you could just use a short USB cable to talk to it using serial port. However, the serial USB implementation of...
    22 replies | 4026 view(s)
  • jwatte's Avatar
    3 Days Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    Good news: Advanced composite-metal fusion additive machining solved the gun jamming problem, just in time to place for the sharpshooting qualifiers!...
    44 replies | 1992 view(s)
  • jwatte's Avatar
    3 Days Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    Each piece of the gun system was tested separately, but in integration, something causes a BB jam that doesn't clear up :-( There's plenty of...
    44 replies | 1992 view(s)
  • jwatte's Avatar
    4 Days Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    Ready or not, I'll be there tomorrow. The magazine feeder motor has an encoder on it, wired to my Teensy, but no software. Maybe I'll work on that...
    44 replies | 1992 view(s)
  • jwatte's Avatar
    4 Days Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    Yes I have that going for me. Pop on home to turn out another bracket on the mill in between matches :-) Gun, magazine, electronics all mounted....
    44 replies | 1992 view(s)
  • jwatte's Avatar
    5 Days Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    So much still to do. Also, broke another tap in the deep holes in the magazine bottom, so had to re-do that one, too. But this gun seems to mostly...
    44 replies | 1992 view(s)
  • jwatte's Avatar
    5 Days Ago
    jwatte replied to a thread Immortal (V2) in Mech Warfare
    Aaaaawesoooome!
    14 replies | 1251 view(s)
  • jwatte's Avatar
    5 Days Ago
    You should assign the IDs yourself. It won't work if you don't. I think there is an Arbotix sketch that can do it for you, or you can do it with...
    1 replies | 175 view(s)
  • jwatte's Avatar
    6 Days Ago
    That's .... gotta be a battery drain :-D Are you using the power tool pluggable batteries? That means you'll have an easy time swapping!
    79 replies | 31174 view(s)
  • jwatte's Avatar
    1 Week Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    At least I didn't break a tap in it when tapping it after this photo.
    44 replies | 1992 view(s)
  • jwatte's Avatar
    1 Week Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    This part. THIS PART. If we go out for beers next week-end, ask me about this part. Actually, better not. It's a sad story and probably no...
    44 replies | 1992 view(s)
  • jwatte's Avatar
    1 Week Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    That looks like it should work, at least in theory ... Although I prefer to have some small resistor in series, to reduce the slew rate a little bit....
    44 replies | 1992 view(s)
  • jwatte's Avatar
    1 Week Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    I'm running a Teensy 3.2, and I run at 1 Mbps. The trick is to have a good, strong driver chip ... I had to look high and low to find one that was...
    44 replies | 1992 view(s)
  • jwatte's Avatar
    1 Week Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    Btw, those tibias are really quite long, giving the bot a wide gait. Great for speed and perhaps reducing tilt, but there are some narrow spaces in...
    44 replies | 1992 view(s)
  • jwatte's Avatar
    1 Week Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    Moved over the gait generator, and tuned it for the new measurements and servo orientations. Also built a bracket for holding the gun, and brackets...
    44 replies | 1992 view(s)
  • jwatte's Avatar
    1 Week Ago
    jwatte replied to a thread News/Announcement The Robotis TurtleBot3 in Rovers
    And a built-in real-time clock chip, so you don't get the wrong time on boot like with the Pi ... Worth the price just for that :-)
    122 replies | 38335 view(s)
  • jwatte's Avatar
    1 Week Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    I lied! There are parts I had made but not taken pictures of. Specifically, the side brackets that both mount the scoring plates, and serve as cover...
    44 replies | 1992 view(s)
  • jwatte's Avatar
    1 Week Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    No pictures. I spent most of the free time setting up development for the Teensy I'm using, and configuring servo IDs and parameters. I'm using...
    44 replies | 1992 view(s)
  • jwatte's Avatar
    1 Week Ago
    If you hooked too high voltage to the servos, chances are that the electronics are fried. Robotis can replace the PCB of the servos, and doing so...
    2 replies | 256 view(s)
  • jwatte's Avatar
    1 Week Ago
    jwatte replied to a thread News/Announcement The Robotis TurtleBot3 in Rovers
    What's your experience with the Nano? Have you compared it to other boards? I kind of don't see what Nvidia wants with the Jetson Nano. It's the...
    122 replies | 38335 view(s)
  • jwatte's Avatar
    2 Weeks Ago
    jwatte replied to a thread The task (lawn mower topic) in Rovers
    Neat! Those round colored push buttons from E-switch are favorites of mine, btw :-)
    42 replies | 5827 view(s)
  • jwatte's Avatar
    2 Weeks Ago
    jwatte replied to a thread Apophis 2019 in Mech Warfare
    *groan* (Coffee through nose funny!)
    5 replies | 407 view(s)
  • jwatte's Avatar
    2 Weeks Ago
    jwatte replied to a thread Malum IK in Mech Warfare
    OK, most sub-assemblies assembled and laid out. (Also working on the brackets for scoring panels and video, but I'm testing new work-holding...
    44 replies | 1992 view(s)
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About jwatte

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    • Created by jwatte
    • Synopsis: A biped made with only three hobby servos
    • Created by jwatte
    • Synopsis: I'm converting a 10-year-old RC car (a Nikko humvee truck) to a RoboMagellan competitor for 2013 RoboGames. The main navigation is a pair of 1080p webcams set 40 degrees apart. Additional sensors and lost of computer power helps.