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This video will show you a quick way to find out if two 32 pitch gears will mesh together when using them on Actobotics channel.
Misc / Re: WHAT IS A SERVO????????
« Last post by FIFO on April 25, 2017, 03:47:00 PM »
    A servo mechanism is basically an actuator (such as a motor) with a closed loop feedback system. What this means is that the servo controller can "know" the absolute position of the actuator at any time. In hobby electronics, one often encounters small servomotors whose position can be controlled by sending a control pulse of varying length (PWM).
    Now let's say, for example, that you have a sonar distance sensor attached to a servo on the front of your robot, and you want the robot to turn the sensor to the right to see if there is a clear path. One could use a microcontroller to send a pulse to the servo commanding it to turn 90? to the right. What's nice about this is that the control electronics in servo will make sure that it gets to that exact position and stay at that position, even if the sensor is bumped. Now of course you can do far more complicated things with this setup, such as having the servo constantly scanning back and forth so that the sonar can create a 2d distance map ahead of it, but this is just a basic example.

    If you want to learn more about hobby servos, I suggest that you check out this article by Sparkfun: https://learn.sparkfun.com/tutorials/hobby-servo-tutorial It is comprehensive and very easy to understand. The Society of Robots also has its own page on this too: http://www.societyofrobots.com/actuators_servos.shtml
For Sale / Re: I need a list of the cheapest parts for my first robot
« Last post by KK428 on April 23, 2017, 05:45:40 PM »
For Sale / Re: I need a list of the cheapest parts for my first robot
« Last post by FIFO on April 23, 2017, 04:30:17 PM »
    Without knowing what sort of robot you want to construct, it would be difficult to provide you with links to specific parts, however I can point you toward good sources for cheap components. This post contains, among other things, a list of sources for components each with a mini review: http://www.societyofrobots.com/robotforum/index.php?topic=18354.0
Misc / WHAT IS A SERVO????????
« Last post by KK428 on April 21, 2017, 05:22:22 PM »
I am just a beginner trying to build my first robot. I did a wiki search but as always it is complete nonsense to anyone that has not got a masters degree in robotics! please put your answer in dumbest form. :-\
Misc / Re: want a new robot tutorial?
« Last post by KK428 on April 21, 2017, 05:12:04 PM »
I think you could add some tutorials for making robots with raspberry pi/ arduino boards. Im not sure if this has to do with robotics but also setting up rpi/arduino would help too. ;D
Misc / Raspberry Pi 3 setup for Apple Mac OS X as monitor ???????
« Last post by KK428 on April 19, 2017, 05:54:56 PM »
Can I set up the raspberry pi 3 with a mac as a monitor? if so how? do I need a hdmi to usb converter? I havent set up a pi before.
For Sale / I need a list of the cheapest parts for my first robot
« Last post by KK428 on April 19, 2017, 05:39:14 PM »
I need a list of parts for a first robot. If you could get me a list of the cheapest parts then I would be extremely grateful. I would also want a soldering iron and solder roll.
Robot Videos / Cataglyphis performing Autonomous Easter Egg Hunt
« Last post by gy60356 on April 18, 2017, 12:23:31 PM »
Mechanics and Construction / Animatronic Robot
« Last post by pip4566 on April 18, 2017, 05:16:53 AM »
I am very new to robotics and I want to do it when I am older as a job.  I really want to build a 6 foot tall, cartoon like animatronic.  Where should I start?  What parts will i need?  I have an arduino already.  Are there any good websites that explain this kind of thing in more detail.
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