I bought a SG5-UT Robotic Arm off Craigslist for $150. Barely used, in great shape. Not 10% as fun as my scratch-built arm. Can't get into it. Real men build their own!
ive been thinking of adding an arm to my bot also, just not sure thee practicality of it. having a huge imtrest in a mini cnc machine, iv collected alot more metal rods than i need... i think these would be perfect parts for constructing an arm on the cheap.
one would need 4 rods from scrap printers then 6 servos to constuct an arm similar looking to erecos link. there would be three joints using to servos at the wrist elbow and base. the only other things required would be homemade servo brackets or even cheap ebay pan and tilt brackets. This could easily be done for under 50 and 35 of that is servos, the other 15 for brackets could be craftly replaced with wood or dremeld steel
Hey everybody, happy Turkey weekend and such! Welp I assembled my boebot and tried a lil of the Whats a Microcontroller kit! I think i am more of a LEGO person after my experience with the boebot and whats a microcontroller kit. I think I would like more mechanical than electronic stimulation that the lego kit would probably give to me. Any advice would be great!!!
did i miss something? i thought you were going to get the bow/wam kit? you know you could use the two servos youll get to start a simple arm with cardboard
Actually long time ago i had a LEGO mindstorms ris unit. it was pretty good but i lent it over to a girlfriend of mine. bad mistake. maybe i can get it back. and just save money over time for the nxt 2.0. Duane what do you mean
discovered microcontrollers? What are some of the things that these microcontrollers have over the legos. I mean the NXT brick is a micrcontroller anyways....
I did get the boe bot wam kit and i built the boebot . However its like you build a robot on two wheels. and you just attach different sensors which essentially do the same thing... I dont know
anyways I think the lego kit is more appealing to me ... I also like how you dont have to understand electronics completely in order for the robot to work(I am talking about the lego kits)
As i understamd nxt is a tosiba micro running legos proprietary system which is watered down. you will never be using for vision processing or laser scans with a wiimote cam. its just a less flexable system than i micro without legos software. with a prop/bs2/arduino you will be able to do alot more. For instance you could use a props bell modem object, and some other hardware to communicate with a satellite if u get a ham liscence. you could connect an arduino or prop to a a kinect.. these are more extreme cases but things nxt wont do. im sure a bs2 has more power than an nxt setup. one issue with nxt is you cant just go plug in a ti chip to give you 16 added pwm/servo channels this can be done on a bs2. Lego is limited in what it can do at the exspense of user friendlyness. if you can write code in basic a bs2 is far more flexable. if its robot construction your scared of check out my robitics lemonade from lemons bot post its an example of a bot from scratch that can be made with hand tools, household items and cheapo surplus stuff, while its not an arm after uve built a bobot youll know how micros work and you can apply my cheap philosphy to a robot arm which could be made from a bs2 some free sample chips and scrapped printers alone. if nxt bricks were easy AND flexable im sure theyd be all over outside lego projects.
it really comes down to how far you wamt to get into this hobby, if you want to play chess add a 35 dollar ras pi and 10 dollar cam to your arm then you have machine vision to analyze the board. i think nxt can only run 3 motors at a time which isnt enough for a gripping arm, youll need another brick or 2, with a prop chip and ti samples youll be running 64 motors easy... its all about how far you wanna go. i know a boe bot isnt ideal but its a better start to a less exspensive more flexable option
if u want an arm ur best bet is the pekit usb stick version and maybe 10 servos with household materials for the acuall arm, as i said a few older printers will have nice steel rod and stepper motors but that path isnt ideal for a beginner servos are electrically and programatically easier. ive never had a boe bot i started my project from scratch but wish i did have a boebot just to be running already. right now im making noise cancellation and back emf boards for my motors along with a battery charging system a boe bot would have let me get into this stuff without building motor controllers and legos would have been way to limiting for any of my sensor applications
i gotta give it to you that bots awesome, amazing its done with nxt. im sure it cost a bit to make multiple bricks and such, i could be wrong bit it may be something to look into, the cost of yhe bot i mean.
i gotta give it to you that bots awesome, amazing its done with nxt. im sure it cost a bit to make multiple bricks and such, i could be wrong bit it may be something to look into, the cost of yhe bot i mean.
Yes, I'm sure a Rubic's Cube solving robot could be made a lot better and lot less expensive using traditional building materials. The robots ability to solve a Rubic's Cube isn't what's so amazing about the robot. The fact that the robot is made from Lego bricks is what is so amazing. Being made from Lego bricks adds an extra degree of diffeculty to building the device.
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http://www.crustcrawler.com/products/arm5.php?prod=0
one would need 4 rods from scrap printers then 6 servos to constuct an arm similar looking to erecos link. there would be three joints using to servos at the wrist elbow and base. the only other things required would be homemade servo brackets or even cheap ebay pan and tilt brackets. This could easily be done for under 50 and 35 of that is servos, the other 15 for brackets could be craftly replaced with wood or dremeld steel
Not on my watch, Martin_H. I FORBID it.
Do NOT finish Tower of Hanoi. It cannot be done.
Darn it, must resist reverse psychology....
Yes, I command you to resist reverse psychology. You must, I say!
It can be, but my gripper stinks and I need a better one. So I'm stuck doing air Hanoi.
Don't panic, you have numerous nifty mechanical accessories to choose from to jazz up your Boebot.
Servo for PING: http://www.parallax.com/StoreSearchResults/tabid/768/List/0/SortField/4/catpageindex/2/ProductID/248/Default.aspx?txtSearch=boe+bot
Gripper Kit (on sale now): http://www.parallax.com/StoreSearchResults/tabid/768/List/0/SortField/4/ProductID/311/Default.aspx?txtSearch=boe+bot
Crawler kit: http://www.parallax.com/StoreSearchResults/tabid/768/List/0/SortField/4/ProductID/314/Default.aspx?txtSearch=boe+bot
http://www.youtube.com/watch?v=b2af-4h-qZ4
(You want the video to go on for it's full time but they had some technical problems.)
Have you seen LUGNET? Lots of Lego stuff.
They even have a robotics section.
I used to participate on Lugnet back before I discovered microcontrollers.
discovered microcontrollers? What are some of the things that these microcontrollers have over the legos. I mean the NXT brick is a micrcontroller anyways....
anyways I think the lego kit is more appealing to me ... I also like how you dont have to understand electronics completely in order for the robot to work(I am talking about the lego kits)
it really comes down to how far you wamt to get into this hobby, if you want to play chess add a 35 dollar ras pi and 10 dollar cam to your arm then you have machine vision to analyze the board. i think nxt can only run 3 motors at a time which isnt enough for a gripping arm, youll need another brick or 2, with a prop chip and ti samples youll be running 64 motors easy... its all about how far you wanna go. i know a boe bot isnt ideal but its a better start to a less exspensive more flexable option
Kinects requires some sort of PC. Neither the Prop nor the Arduino can communicate directly with the Kinect.
I'm not so sure about this. The BS2's strength is its ease of use, not its power.
I believe the NXT can be expanded with I2C components.
Yes, I'm sure a Rubic's Cube solving robot could be made a lot better and lot less expensive using traditional building materials. The robots ability to solve a Rubic's Cube isn't what's so amazing about the robot. The fact that the robot is made from Lego bricks is what is so amazing. Being made from Lego bricks adds an extra degree of diffeculty to building the device.