Step 2: The BeetleBot v2 ( Revisited ) - The SPDT switchs

This is the main component for this robot. The most expensive.

You might get them free or pay from 1$ to 4$ each.

the SPDT switchs need to be really sensitive! These switches are the most expensive part of the robot... around 1$ to 4$ each. The one I use are from Cherry.

If you recycle old electronic, it might be all FREE! Try searching old VCR, PS2, old toys, printer, etc
Back then, I use to recycle everything, I got everything FREE, old VCR are very good for gears and something SPDT switchs!!! Playstation have great motors, the one that makes the laser move.

-- edit july 5 2008 I was surfing the website and found this cool instructable
His name is Nick and he is 14 years old!
He told me that is was going to build the beetle robot this weekend because he has all the parts!
He took the time to recycle. :P I did the same thing when I was his age! :)

At the end of his tutorial, I saw a picture of the blue recycling bin of is municipality - Blainville! That is like 10km from where I am living while making my internship!!

The world is small!

end edit --
<p>I have made the thing as instructed.Kindly check the first picture.</p><p>While mentioning any suggestions,kindly specify with respect to SPDT 1 or SPDT 2.</p><p>Both batteries are working but not the robot.</p><p>On pressing the lever at SPDT 1,motor 1 is rotating.</p><p>Is the battery holder in the picture alright?How can I draw the wire from the back part?</p><p>Kindly help me.</p>
<p>These are attempts of the beetle bot.</p><p>Is that battery appropriate ?</p><p>On touching the red and black wires of the battery to the NC and NO of the SPDT switch,no current passes although the battery is perfectly fine.</p><p>Where am I going wrong ?</p><p>Is there anything wrong with the connections.</p><p>Kindly help me.</p>
<p>you can not make this projet work with a single batterie. You need two 9V or two 1.5V batteries.</p>
<p>Are the connections all right.</p>
<p>You will burn your motors if you use 9V batterie. This is what you need to do.<br>You shoud use AA batterie holder instead of 9V</p>
Thank you
I have made the thing.But my robot is not moving forward but is moving in circles.What should I do?Please help me.
Great Instructible! Amazing graphics.
<p>guys plz help I made it the same way as instructed but my robot does not move front when on but when the SPDT are clicked the corresponding motors work perfectly plz help</p>
Your problem is the &quot;third&quot; connection. You are not providing voltage to your motors when the SPDT are not activated. Make sure you have a good connection inside the batterie holder (the junction of the two batteries).<br><br>good luck
<p>Hi, i need help to search switch SPDT. I check in mouse but there is no plate for connect. I check in printer too but nothing.</p><p>Where is switch SPDT located in VCR?</p><p>thank</p><p>Christine</p>
hello<br><br>in a mouse, you have to desolder the switch from the green (PCB) board. You apply heat to the pads and pull on the switch.<br><br>You can find switch in a VCR but it depends of the type and date of VCR.<br><br>you can also buy them online, it's cheap and digikey ships superfast (8$ shipping) cheap<br>http://www.digikey.ca/product-detail/en/MS0850502F030P1A/EG5141-ND/1628122<br><br><br>or here<br>https://solarbotics.com/product/swt9/<br><br>good luck Christine!<br>
<p>i have the same prob as armars has</p>
i put both of the batterys in and the motors don't spin at all. however, when I press the spdts the cooresponding motor spins. HELP PLEASE!!!!
Try reversing your battery connections. This should work
<p>I didnot get u plz can u explain</p>
<p>thx man i already made it :) but mine is different :) its look like this i didnt picture the true one</p>
I built it the way all the pictures say. The bot goes backwards first then when you touch the attanas it goes forward. And suggestions?
Hello Andrea,<br><br>I will not give you the direct answer... maybe :)<br>You robot is functional, you only need to do one thing to make it work 100%.<br><br>A electric motor can go in two direction. Forward and backward.<br>How do you make a motor go forward? The only thing we have in our circuit is a battery and a switch. Let say we only use the batterie and the motors. How can I change the direction of the motor?<br><br>On your any batteries (cylindrical AA in our case) there is a positive (+) and a minus (-). There is a convention saying that the electricity flows from the positive (+) to the minus (-) in any electric circuit. The electricity comes out of the positive (+) and start going through the circuit then it goes back to the minus (-). If you swap the polarity of your motor, the electricity still flow from the positive to the minus of the battery BUT it's inside the motor that is in reverse. So the motor spin the opposite direction! You simply swap/change/invert the wiring of the motors leads of both motors to make the motor spin the other way around. If you do that in your beetlebot it will go forward. This will also fix the issue when you press the swtich and the motor will go backward.<br><br>You have to do both motors. If you do one, well one side goes forward and the other side goes backward. It will spin really really fast!<br><br>good luck and let me know if that works!<br><br>byebye
I built the bettle bot the same way as the pictures. It goes in reverse. When you touch the attanas it goes forward. Can I change and connections to change this?
I am a 14 yrs old child and i just loved this robot i even am making it now so thank you sir whi made this beautiful robot.
<p>Dear 14-yrs-old-child-now-15-yrs-old-child,</p><p>Plenty stupid to post you're a fourteen year old.</p><p>Sincerely,</p><p>An adult who doesn't want somebody to kidnap you. </p>
I have built the robot but it doesnt move very fast. Not like in the video. It doesn't hit the switches hard enough to activate them. But they work because if I hit them with my finger it changes direction. The motors I am using are allelectronics DCM-409 which are 1.5-6v motors and I am using 2 AA batteries.
<p>cmwils,</p><p>This could be a result of touching components. With experience in this area I reccomend trying to seperate anything electrical that is touching.</p>
Dude, sorry for the late reply, but check on your switch. Is it flexible enough? Maybe it's a little too rough and hard?
Check out my instructable: <br>http://www.instructables.com/id/Fixing-Your-Beetle-Bot/
<p>I have created something similar to this using the same axis power motor. To make a long story short it is a much taller, bird like version of this.</p>
<p>I have created something similar to this using the same axis power motor. To make a long story short it is a much taller, bird like version of this.</p>
<p>Where can i get SPDT switches</p>
<p>can i use super glue?</p>
<p>its ok one spdt switch can function it or no... pls </p><p>reply.....ned help..</p>
Can I use a 4 x AA Battery Holder on this? and How can I connect it in the circuit?
SO cute!! &lt;3
I have built the robot but it doesn't move.. is it possible for the circuit to use 9v battery source? what do you think mr. monkeynuts? i want to use 9v battery source can you do a circuit of the beetle bot using 9v? please?
Can someone plz help me, i built the beeetlebot exactly as it was instructed, but one motor runs faster then the other. They are the exact same motors and they even came together. PLZ help, someone! Thanks
Check out my instructable: <br>http://www.instructables.com/id/Fixing-Your-Beetle-Bot/
Hey guys! I was wondering if you could help me out. I tried building one of these but whenever the switch is pushed the corresponding motor stops instead of reversing. Any clue on what could be wrong? please help me.......
Hi, erdan check out my instructable: <br>http://www.instructables.com/id/Fixing-Your-Beetle-Bot/ <br> <br>that should help you out! :)
great robot!!! i just made one and it works great!!! thanks!!!
can i use the SPDT switch of the mouse or even the Microswitch? please Reply dude....thanks.. <br>
nice i was making the beetal bot v2
Hi Jerome! The beetlebot is a great robot! I made it the other day and it works very well! I made the beetlebot without any solder at all and it still works. I don't have any heat shrink, so I was wondering if there are any other things I could use as the wheels?
I forgot to post this in my previous comment. sorry! :)
Man, this one was more than awesome &amp; a sign of excellency. Actually, you answered a question of 'wheels' (that how you add wheels?) You said you need a gearbox. <br>But actually man, I have nice wheels which fit in my motor shafts perfectly. What if I glued motors PARALLEL to ground facing away from each other &amp; perpendicular to battery holder? I will add two wheels stuck on two ends of a small rod (axle) on other end so motor duo will perfectly work like a front engine &amp; rear loading will be wiped. In my image below, you will find a parallel view as you have shown in step 7. <br> Thanks &amp; Regards, <br>OneForTan. <br> <br>P.S. Lines in black is your original design. Lines in green are my modification. <br>Waiting for your response eagerly.
hard dude
mine can run on one battery! <br> <br>it also shocked me
what happens if I accidentally solder the 2 pairs together? <br>
and i have used NO switch !!!
i hav done everything as u have instructed but d problem is that when i connect d batteries the motor doesn't gets started and all the wires r connected properly can u give a solution for this ? <br>
Hey guys! I was wondering if you could help me out. I tried building one of these but whenever the switch is pushed the corresponding motor stops instead of reversing. Any clue on what could be wrong?

About This Instructable


483 favorites

Bio: I am a French Canadian that loves robots and embedded electronics. I work on all kinds of cool projects, like a high-power electric push scooter ... More »
More by robomaniac: Arduino-Fart-O-Meter No pictures costume for Hong Kong Halloween Dead killer bee prank ( April fools )
Add instructable to: