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Mechanically moving an enclosure.... — Parallax Forums

Mechanically moving an enclosure....

Pablo MartosPablo Martos Posts: 14
edited 2009-03-04 20:19 in General Discussion
instead of using my hands,i want to move an enclosure(box) mechanically, i am using the basic stamp 2 and a dual axis accelerometer, i want to get measurements, but i dont want to move the accelerometer manually, is there a way i can somehow place the box underneath something that i can control with a joystick?? i just dont know what electrical component/s i need to use.. i just need it to move like similar movements as pitch and roll.... thanks

Comments

  • Mike GreenMike Green Posts: 23,101
    edited 2009-03-04 15:48
    It is against forum rules to post the same message in more than one forum. You don't get answers any faster or better that way. Please delete your other posting by clicking on the X icon in the upper right hand corner of the original message box.

    How do you want your box to move? Do you just want it to rotate? Through what range of motion? How many axes? How quickly?

    For just pitch and roll at modest speed, you could use a couple of servo motors. Normally these have a rotation of 180 to 270 degrees. You'd need some kind of frame to mount and hold everything. Parallax sells a "standard servo" which rotates to a position specified by a periodic control pulse (50/s) from 1ms to 2ms in width with the width of the pulse specifying the motor position. Read Parallax's "Robotics with the BoeBot" tutorial for some discussion of how servos work and how to control them with a Stamp.

    Some joysticks use a variable resistor to indicate the position. This can be read with an analog to digital converter or with the RCTIME statement. Start with the RCTIME statement. Read the chapter on it.
  • ElectricAyeElectricAye Posts: 4,561
    edited 2009-03-04 20:19
    If you're looking for a purely mechanical solution, you might take a look at how antique airplanes used a single stick to provide flight control. Your stick operates a system of cables and pulleys, etc. which could rotate the enclosure located far away from the stick.

    hope that helps.
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