Coilosapien: Rail gun on yer robot


It’s been a while since we’ve seen anything new on the robosapien front, but I’d say that a laser sighted rail gun for our favorite robots is worthy. From the video, it appears to have decent accuracy and a fair sized clip. It’s creator, [Marcus] says that he’ll have a tutorial up soon. Thanks to [Robert] for the tip. (Update: The tip says it’s a mini rail gun, so I’m not sure if it’s a rail gun or a coil gun.)

Comments

  1. Uday says:

    Dude, that is so awesome.

    Now all we need are sharks with laser beams on their heads….

  2. Satiagraha says:

    If it has a solenoid, it’s not a railgun, it’s a coilgun.

    A railgun literally has 2 rails, which the armature conducts between and slides along.

    A coilgun uses a coil of wire (solenoid) to magnetically “pull” the ammunition forward. This requires precise timing to stop the magnetic field once the projectile has reached the center of the solenoid so that it’s momentum will continue it out of the coil.

  3. phreak says:

    ah, gumbi in the crotch. well worth it.

  4. TGBM says:

    poor gumbi… looked like that hurt.. nice idea.. i like the flame on the right arm..

  5. Alex McCown says:

    its a coilgun

  6. freakking awsome! says:

    THAT WAS FREAKING AWSOME!!!!!(CAPSLOCK ON)

  7. Who cares, it’s still cool as hell!!!

    I can’t wait for the tutorial, I want to mod mine!!!

  8. joelanders says:

    coil gun, spoil gun….

    it’s a *gauss* gun.
    sounds cooler.

  9. giskard says:

    could be a gauss gun. i’m waiting for the tute o be up before believing it. seems a it to much power compared to other projects i’ve seen of a similar nature. to get that much energy into a projectile should require at least two coils and a reasonably sized cap bank, neither of which i see.

  10. Schmoopie says:

    Ahh, poor gumby.

    That is very cool, I wonder how many FPS that projectile fires at…

  11. Andrew says:

    Could be something much less complicated…
    Possibly a simple solenoid that fires the ball bearings.

  12. paragraph says:

    very nice mod. i think that face is just too innocent looking to be armed though :. I’d really like to see the tut too, a rail/coil/gauss gun always comes across as something big and bulky, or at least within the realm of putting one on a child’s toy.

  13. PKM says:

    I’d like to see people complaining about the quality of hacks when faced with this one- absolutely inspired (especially the laser sight). giskard, i agree with your concerns about the tiny size and apparently high power of this, and I didn’t think gravity-feed clips worked with rail/coil guns- i’m sure all will become clear with the walkthrough. i can’t wait for that, i have a couple of camera flash units and a drum of .177 bb ammo at home doing nothing :)

  14. strider_mt2k says:

    Holy crap that’s good!

  15. Hey HackADay, thanks for printing the news tip, you guys rock.

    As I said in my news tip to you, the credit belongs clearly to Evosapien Team member Marcus who created the hack and made the video. You can see more of his robot hacks here:

    http://www.evosapien.com/robosapien-hack/marcus/

    Thanks,
    Robert

  16. Yan says:

    Coil guns/Gauss guns are very simple devices, and the physics/electronics in them are much simpler than that of rail guns. You can easily make a decently powerful coil gun with a soda straw, some enameled wire, and a disposable camera flash. It’ll shoot BBs about 10 – 15 feet depending on how good you’re winding is, and staples even further. Add a few more caps and maybe some extra winding stages and you have quite the bb shooter.

  17. PKM says:

    The how-to for the coilgun is up- it is a true coilgun using the traditional camera flash parts. The mechanism is prett ingenious, well worth a read.

  18. giskard says:

    yes this looks like it is infact a real coil-gun. at 330 volts and a considerable capacitance, that’s a fair bit of energy stored there. definitely a hand behind the back project, you don’t want that voltage across your chest. neat loading mechanism however.

  19. kevin says:

    I for one welcome our gauss gun wielding, Robosapien overlords.

  20. keegen Hunts says:

    This rocks im so going to do this

  21. Zac says:

    Guys! Remember that those things can fire things faster than a bullet.
    They can be deadly :D!
    I however also wanna make my own!

  22. wooow it’s realy rocks.

    great idea great mod.

    thanks

  23. Loolillefly says:

    Hi Everyone

    I just became a member of this forum

    Great job forum crew!

    Yesterday I read that there is a cure for diabetes on http://www.healthcaredaily.org
    Is this way of curing diabetes mentioned actually true, If so I should have found out earlier! The source looks like a reliable healthcare news website

    Could you someone tell me if this healthcare information is for real?

    Thanks

    Loolillefly

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