How to Build a Robot - The BeetleBot v2 ( Revisited )

Step 6 The BeetleBot v2 ( Revisited ) - Attaching the motors to the motor mount

This is an easy step but you need to be carefull for the motor polarisation.

If you get this step right, you have good chances it will work the first time!
( I hope so :P )

Look at this picture to understand. I have use electric tape to attach my motors.

Comments

[yagrakill]

how would you know where is positive and negative?

[hsarode1]

which positive and negative do u want the batteries or the motors.

[Patented]

yeah, how to know that?

[yourtubemeera]

1- first of all tape the motors on the metal strip,you've got to keep the terminals up . 2- then touch the leads of the battery to any of the motors and see which way it is moving? 3- the way i did it was to mark the direction , in which one motor was moving-on the strip .(see my pics in my comment) 4- the terminal attached to d battery negative is +,and the terminal attached to the battery + is - 5- now mark the signs on the motor u just tested with a permanent marker and the direction on the metal strip too. 6- now the trick is if the terminals of the motors are facing up the signs on the other motor will be just opposite to the one u just marked in order to run both the motors in the same direction. 7-well u can check it using a battery. ( as in step 4 ) 8- dont forget to keep in mind u have to move the motors in the same direction. now mark the signs clearly . 9- thats it u have the same configuration as in the instructable. i pondered over it one whole day , and came up with the idea at night hope it doesnt sound difficult !!!

[ktech95]

hey i couldnt understand wat u meant by one motor was moving on the strip?can explain this whole thing again im finding it difficult to make out which one is negative or positive..

[TheNuclearWatermelon]

One thing that i thought was a really awesome idea (that i got from the book Soler Energy Projects for the Evil Genius) was to find FUSE HOLDERS big enough for the motors to snap into and glue those down instead of the motors. Then, one the glue dries, snap the motors into place in the fuse holders. If either of the motors are accidentally connected wrong and spin backwards, you can just snap it back out and switch it around to go the right way.

[day-veed]

You don't necessarily need a bigger fuse holder. Use a smaller motor! (i.e. pager motor / vibrator)

[zarkometal]

Anyone speak spanish here?
Ive some cuestions but my english is too bad

[pinguino117]

yo hablo q pedo

[pupilfang]

cool project!! sir i just want to know how to make the reversal longer, my switch reverses but it is so quick that it doesn't seem to move at all, thanks!!

[JTW525]

This set up worked for me but after reading the comments I took extra care on this step..... but it worked this way with the motors I had

[Lacurazz]

when i had my motors like this, it went in reverse!

[mikeylawrence]

Me too! I was so pissed. So i had to unsolder everything and switch it. But then it worked, so i was happy.

[clarkkami]

what did you do to get it to go forward? I am having the same problem.

[Lacurazz]

all i did was position my motors opposite of the picture