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Thread: Ensign Wedgeley Crusher (FW Sportsman)

  1. #21
    James Williams's Avatar
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    James Williams
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    Neophyte, Meteorite & Exabyte (FW)
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    As far as I'm aware, you're right about there not being a specific stopping mechanism Jamie. When I've tested Neophyte in the past with the locking bar in the actuator has simply stopped, which I presumed was what was supposed to happen when the actuator couldn't move. After the test the actuator has always worked perfectly fine (although at 200N it is a relatively low powered actuator). All this is just my personal experience with my actuator, if you or anyone else knows something I don't or has their own experiences by all means let me know, thanks.
    James
    Team Phyte

  2. #22
    RogueTwoRobots's Avatar
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    Jamie McHarg
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    Drumroll II, Carcinus, Onyx & Coyote
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    Ahh yeah, 200N is only about 20kg so it's more a lack of power that'll be stopping it. The ones I've had in those situations have been 75kg and above, and that's when things can start to get unhappy
    Jamie McHarg
    RogueTwo Robots
    http://www.rogue-two-robots.vze.com

    With great power, comes great reliability.

  3. #23
    McMullet's Avatar
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    Sam
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    Ensign Wedgeley Crusher (FW)
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    Thanks for all your thoughts folks!

    The problem with the Gimson linac is that either the retracted length is too much, or the stroke too small. So either the butt end of it sticks out of the back of the robot, or it doesn't move enough to close the jaws with any real force. Still, I might try a rough attempt incorporating the Gimson one into the CAD model just to see if I can make it work. Always nice to use something off the shelf if possible.

    @Ocracoke - the drill gearmotor isn't too long with the planetary box - about 130 mm from end to end which fits in the space fine. The leadscrew + associated gubbins will be about the same size so it's not a problem as long as they're on top of each other.

  4. #24
    Ocracoke's Avatar
    Team Kaizen

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    Lucy
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    AW: Amai, Ikari, Osu, Ramu / BW: Shu!, The Honey Badger / FW: Azriel / MW: Jibril, Kaizen
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    Hmm... if the jaw is for clamping, I guess using a drill motor would be enough but won't have much in the way of crushing effectiveness though I guess that isn't what you are going for. The threaded screw will increase torque anyway. I can see this working. :P
    Team Kaizen - Build Diary for all the robots

    AW: Amai, Ikari, Osu, Ramu
    BW: Shu!, The Honey Badger
    FW: Azriel
    MW: Jibril, Kaizen

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