Step 7: Powering the Motor Control System

The motors will be powered by either one or two 12V lead acid battery(ies) OR buy two 6V batteries. The battery(ies) that you buy must be able to provide at least 20AH each. If you decide to go with two 12V batteries you wire the batteries in parallel, if they are two 6V batteries then you wire them in series. If its only one 12V battery then obviously you just directly connect wires to the battey without any hitch.

The relays need their own separate supply of 12V to actuate them . The relays will be actuated by the the main 12 volt power supply of the motors. The reason we can't connect them directly to the computer switching circuit ( we will deal with that in the next step) is because that circuit can only handle 4 amps , and our motors draw 11 amps each . The relays draw less than 4 amps and can therefore control the motors easily.
<p>Amazing project </p>
<p>this amazing but if you could make it so it would do all your chores and clean the house it would be even better</p>
<p>Amazing project</p><p>Can you try updating it so that from the hands he shoot that can can be used as serving plates or something like that</p>
Hey, <br> I realize I am a bit of a late-comer (If 3 years is considered late), and I recently discovered this project while browsing robotic videos on YouTube. I have to say, this project is MARVELOUS! Fabulously explained, and a very innovative idea! A truly amazing project.
It actually reminds me more of gadget gadget from the waters of mars.
How fast does he go?
&nbsp;where can i get one of these? would one of those proper robotic arms work like this one if not where can i get one of them and is there a way of making the arm bend? other than thatg this robot is awsome i want to make it so bad and add a few twists :P :) (if i can lol)
Jameco Electronics <br> <br>www.jameco.com
I used to own something similar to that when I was young. It was called &quot;Super Armitron.&quot; Its really just a toy. The gripper arm was very weak and very slow. It was tons of fun for playing with action figures, but not much for real gripping.&nbsp;However I imagine you could probably rig it up with some stronger parts if you were clever enough.<br /> <br /> You can probably still find them either online or at a science/discovery store. As I remember, I got it as a xmas gift and it only cost around thirty bucks or so back in the 90s.<br />
thinkgeek.com i think they sell those arms.<br />
&nbsp;or is there any way of giving it more of a proper robot arm.so it could do more stuff. please help and how would i add this to the software. thanks. once again great robot!
Do you think that it would be possible to build a mini one without the fridge and drink pouring?
he's so cool!
wow could i add this http://www.keylemon.com/
I love the whole idea of the project, right now I'm actually deep into the code. Forgive my youthful ignorance, but I didn't see anything relating to the Roborealm program in the VB script? Why is this? Does it go thru something else? An explanation would be really cool, and thanks once again!
Wish i could make a robot like that!!!!!
OMG this is soooo cool u should like make a company and sell them
how long dose it usually last?
OOOOH! Relays---this has my vote for the contest. Anything that serves beer and has relays deserves a vote!
lol thanks for your vote! I use relays because they are cheap and easily available. I am starting to shift towards MOSFETs because I need speed control.
the base instructions are pretty strait forward. so i give you the title &quot;ace instructor&quot;XD
Hi, I'm planning on building this robot, but I'm wondering how I would program the code/voice controls on a Mac. Thanks!<br><br>-Simon
And also, do you control the robot wirelessly with your laptop? Or is the laptop mounted?
What are the minimum laptop/computer specs this thing needs?
I knew it you use roborealm for voice commands a used to do that to make my computer tell me stats about its imune system you add buttons and the win vista or win 7 voice recgnition does the rest
What is the difference between the relay battery and the motor battery?
question: you mentioned automatically avoiding obstacles, where is that? I don't see any mention of it throughout the tutorial
Awesome! This has really inspired me to make a butler bot of my own. One thing I was interested in that you mentioned was self-docking to a charger. I don't know if I just missed it in my excitement, but I didn't see it. What step is it mentioned on? Thanks for the awesome instructable!
It reminds me of the robot in Rocky the movie
You won. Wheres the new robot?
&nbsp;I have a few suggestions for your robot. You should program him to follow and to come when you are in another room. And maybe add a servo to let his head turn.<br /> <br /> Thank you for your cooperation.<br />
&nbsp;what rpm and voltage are you wheel chair motors??
This is an even cooler invention then Toast. Like seriously id make one in the future that can walk up the shops and buy me a drink<br /> <br />
it would be even better if it had a toster.&nbsp; :p<br />
Im probs gonna make this but im gonna call it Wadsworth and it should have to voice of wadsworth in Fallout 3<br />
Could this robot interface with any of the chatbot programs available through jabberwacky or the like? I just wonder because if a chatbot interface could be linked into a voice recognition and speech to text&nbsp;(and viceversa) program, wouldn't it possibly be a mock conversationalist?<br /> <br /> By god I&nbsp;love this site. Found it today at work and I've been on it pretty much all day since getting home. I hope to start construction on this and/or the Doctor Who K9 unit in the next year. It'll be my first venture into robotics, but I'm good at following directions and not afraid of failure. Thanks for building this and thanks for putting up this instructable!<br /> <br /> Please feel free to hit me up with any advice as I'm the newest of noobs to such things.<br />
I've just started with electronics and can't wait to get into it. i love the idea of a K9! let me knoe how you go with making him?<br /> <br /> my first project will probably be a sonic screwdriver.<br /> :)<br />
<a rel="nofollow" href="http://www.maplin.co.uk/Search.aspx?menuno=86022">http://www.maplin.co.uk/Search.aspx?menuno=86022</a> would the second two laptops work or do they need windows vista?<br/>
since it's VB it should work just fine with anything windows that can use the Visual basic studio. In other words, most likely, providing they don't use CE (your link is out of date now) If you can find a compiler it should also work in Mac or Linux
&nbsp;none of the windows visual 6 software will install on my comp. i have it running vista! you did say that you need a comp on vista but on microsoft it just says windows 2000 and windows xp and a few others but not windows vista please help!
&nbsp;Awesome! Somethings that might be cool to add:<br /> <br /> -swiveling head for use with remote control.<br /> -speed settings for movement.<br /> -slower pouring of beverage so it doesn't spill.<br /> <br /> This is by far one of the coolest instructables. Great work!<br />
can u do an ible about how 2 make an obot (a robot programmed to seeobama as a &quot;true and good leeder, a guy who is incapable of eviland is a hero who must be robustly defended)?&nbsp; im sorta nutral2wards obama, but that wuld b dang hilarious!&nbsp; i culd probly modifythis 2 shoot the water gun when somewhen makes a negative remark aboutobama and hand out campaign flyers, but i'm afrad i culd wast al mamonee on an obot that dosnt wrk.
good idea
very clever design, I like it.
can it peform tasks on its own???<br/>and i dont really see it cleaning and such in action.<br/>and plz can you make a modified instructiable without mini fridge and with 2 robot arms and no arm for beverage.<br/>and maybe 4 clawed arm so it can really interact with more things and then i can help you.<br/>(i am not technical with hardware you know)<br/>but i am with software.<br/>so i can make it like search for cola and really fill your glass with grabbing the bottle and more cleaning and assisting.<br/>the minifridge could be an automated storage for the butler robot (chives)<br/>so when he needs something he can open the door.<br/>and then grab something out (that might be hard)<br/>but can you plz i mean plzzz<br/><br/>provide an slight modified instruction on how to make a slighly more advanced arm plzzzzzzzz<br/>then i swear i would help you with all i can.<br/>(i have a lot of free time =D )<br/>
I've added a bunch of stuff to him just I am not in the mood to document it tutorial-style. I'm in the middle of a lot of projects , and I expect to sell versions of Chives ( that do functions that you said) late next year. The purpose of this instructable was to show how to make a butler robot for beginners
I'm extremely interested in robot engineering, but I have problems with simple basics. This instructable is very helpful, and at the moment I'm interested in micro sized bots, I believe his id is mickey77, yet I can't build any thing that doesn't come from a kit with instructions. I also wish to build a bot from scratch, like homemade motors and circuits, but don't seem to have luck with that. What help could you give me?