Tell A Friend

  • Friend's email:
 

The Armbot - Let me shake your hand!
This is an arm. What's more, this is a very proper, polite, and otherwise well-mannered arm. I have taught this piece of plastic to shake your hand, when it sees you near it, ad to wave good-bye when you leave. It can sense when you're shaking its hand, and if you say something, it wqill reply. It is my third Armbot, and so far my best. On all of them, the shoulder kept popping off, and it twised your hand. The hand wasn't very comfortable, and the wrist kept popping off, too. the shoulder wasn't strong enough, and it was very jerky. All of them, that is, exept this one. I solved several problem with the shoulder with this arm. On the last one, the stationary arm that wa connected to the nxt was the one that raised the shoulder. this made the rather large shoulder into a reverse third-class lever, for those of you who know what that is. In short, it made it work harder, which I didn't want at all. In this design, the stationary arm SWINGS the arm, not LIFTS it. this make the shoulder into more of like an axle, and the former swinging arm raised it, having it lift only what it had to. The shoulder is also more securely attached this time. The main pic is a full-view of the ArmBot, pic 1 is the extents that i had to go to to keep the shoulder attached, pic 2 is another view of the arm, pic 3 and 4 are pictures of the hand, which is actually quite comfortable. The hand has the touch sensor right where your thumb would normally go, and a little bar so that the wrist moves with the rest of the arm. I'm working on a Program for is, as well as an LDD so don't bother asking.

Posted by:

 jtg007

Created:

 14 November 2008

Rate:

 

Tags:(?):

 arm, hand, shake, shaking, nxt, cool, claw, nice, roboticarm

Program

Here's the program you've all been asking for. Have fun!!!

Comments

24 comments

  • dupple_supple

  • I look forward to seeing your program for your project.

  • Posted 1646 days and 16 hours ago


  • kineticenergy

  • this is amazing. truly a beutiful thing. great work!!!

  • Posted 1646 days and 5 hours ago


  • scuba_mike

  • "piece of plastic" It really isn't a peice of plastic. Many peices of plasic, metal and other stuff. Though nice bot!

  • Posted 1646 days and 4 hours ago


  • jtg007

  • Hi everybody. When the Arm is moving, It creates too much momentum to keep the base solid. I've had to use books to keep it in place, while it is waving good-bye. (dictionarys work well)

  • Posted 1645 days and 9 hours ago


  • RrangerRick

  • That is so cool! Everytime you have people over to visit he can greet them!

  • Posted 1642 days and 9 hours ago


  • legomylego2

  • Wow! I hope the program comes out soon! This robot looks interesting!

  • Posted 1640 days and 11 hours ago


  • Fred-bot

  • Can you post a LDD

  • Posted 1634 days and 14 hours ago


  • shutinc

  • Hello! Great arm project! I like how you did the whole thing with only 3 motors. I am working on a project myself that's going to need robot arms. (see link below). I might use some inspiration from your project to complete mine. But I was thinking, maybe 5 motors would simulate the arm better than 3? What do you think?

    http://us.mindstorms.lego.com/nxtlog/ProjectDisplay.aspx?id=6b2a53e2-20b1-4660-9d41-af1dc48b721e

  • Posted 1631 days and 22 hours ago


  • jtg007

  • shutnic- Wow- I looked at your robot... what a big attempt! I would have LIKED to have four or five motors for this one... one to swivel the base, and another to open and close the hand, but I only have three. (i am a teen of very small means/and/or/wealth) If you could have four motors in your humanoid's arm, I don't know if youl'd even need five, Then You would have my heartiest congradulations.

  • Posted 1627 days and 16 hours ago


  • NXTSTORMER

  • This looks like a pretty neat robot jtg007. I like the idea of having a polite robot in my house. I don't know if you make games for robots but you should take a look at mine.
    Rabbit Hunting Game.

  • Posted 1625 days and 13 hours ago


  • shutinc

  • jtg007: Thanks much! I am planning on using a total of 3 NXT sets to get this project done. Each of the nxts that control the arms will be attached to the shoulder or upper arm. I have not decided yet if I'm going to use 3 or 5 motors. I could probably get the arms done with only 3 motors, using 1 motor for multiple tasks. I've been discussting this with a fellow AFOL, and the use of 3 motors seems more reasonable than using 5.

  • Posted 1623 days and 6 hours ago


  • jtg007

  • shutinc- the motors are not very powerfull, so make sure if you stick the nxt one the shoulder to have it stationary! I had problems just with my arm!

  • Posted 1622 days and 8 hours ago


  • davy290

  • dude it is the coolest NXT hand i ever seen

    make sure you check out my projects.

  • Posted 1579 days and 10 hours ago


  • Ryo1099

  • add an ldd

  • Posted 1548 days and 18 hours ago



  • legomylego2

  • Does the whole arm use one NXT set? Because otherwise I can't build this project and I really want to. An LDD would also be helpful.

  • Posted 1450 days and 4 hours ago


  • jtg007

  • Legomylego2
    What exactly do you mean? The arms uses pieces only from the NXT set, but not all of them. The arm uses a pretty good part of the retail set, but there still are lots of parts left over.

    For all of the people who have asked for videos and ldds, I made this robot before I got my video camera or downloaded ldd. Sorry.

  • Posted 1449 days and 18 hours ago


  • davi_1997

  • big arm and have fingers very crazy
    exelent project
    lot of parts

  • Posted 1330 days and 4 hours ago


  • Hikaru755

  • I wanna shake his hand to!

  • Posted 1329 days and 18 hours ago


  • pilotboy101

  • nice idea

  • Posted 1329 days and 4 hours ago


  • PROGRESSOR8

  • best nxt eva... plz post ldd

  • Posted 1210 days and 4 hours ago


  • NXT-Madness

  • cool project jtg007!

    can you post a video for us?

  • Posted 1195 days and 16 hours ago


  • LeoBello

  • great job !

  • Posted 1190 days and 18 hours ago



Add A Comment


Please log in or register to add a comment