Wednesday, November 7, 2012


Quickly hooked up the motorized targetbank just now, and here's the first test run:

As you can see, it's not perfect -

The rotation range on the servo was supposed to be a full 180 degrees, but this particular servo only has approximately 170 degrees of motion. This means I need to manufacture a better link between the servo and the sliding bracket in order for the target bank to fully rise.

Side note - 
The clicking noise in the video is caused by one of the servo extensions hitting the frame itself. 
The excess plastic have been cut off and the problem is no longer there. 


  1. sweet. is that an avartar target bank? I like the idea of servo's for long standing up/down links instead of solenoids. less power 'on' all the time etc. having some RC stuff too I have a few servo's laying around. servo's open up some neat possibilities, I was thinking of one for a lane changer on an orbit loop shot.

    1. Also, the downside with having a motor is shown is this video, where the rotational motion can be clearly seen.
      I may be picky, but I believe it looks rather cheap... :)

    2. yeah looks cheap, I think the problem was the servo is obviously going in an arc and your seeing that, so you get a low angle range of motion then as it goes through the arc, a larger drop. I'm sure with adjustment you could get it going straight just fine, and stern is well know for how cheap it does everything these days. tron had some issues with very little clear coating and other things for cutting the price of production down.

    3. Yes, I believe their home edition of Transformers is a monstrosity that never should have been birthed. I mean, NJJP's Wizard of Oz compared to that..?

      My current targetbank moves in a perfect up/down movement now anyway.. ;)

  2. Yes, it's the frame from Avatar. Or Spiderman. Or Tron. Or Attack From Mars. Or... :)
    It's widely used actually, hehe.

    To me it makes more sense to have a limited range of motion instead of a continuous motor that is controlled via switches. The motor is a complicated and expensive piece while servos are available from a couple of bucks. I'm using servos to control the Big Daddy's movements as well. Servos are great! :D
    I haven't tried the servo with the recommended voltage of 5 volts yet, since it's not actually plugged into the machine yet but controlled via the old (external) Arduino for testing purposes, but hopefully the speed can be increased a little as well.