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BOB

by k120189, published

BOB by k120189 Jan 21, 2013
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Thing Info

34857Views 5945Downloads Found in Robotics
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Summary

BoB a fun introduction to the world of walking robots for children and adults alike! with simple construction and very low part count you can have your bob up and walking in no time. i've updated recently to include the BoB poser software by robotfreak modified from the fobo poser software just load the arduino code onto the controller and plug in BoB to usb and get posing! it allows a frame by frame sort of capture mode and playback making animations easy

Instructions

you need:

printed parts

 1 X head  

 1 X base  

 2 X bracket  

 2 X feet  

electronics

4 X 9g servos  

micro controller of choice (ardiuno nano fits nice)   

battery (nimh 9v, lipo, AAAs, whatever you have that works)  

sr04 or ping  

3mm leds  

a little tip. for faster printing feet in cura you can "sink" the print down 2.5mm it takes about 10 minutes off the print time

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Thing Info

34857Views 5945Downloads Found in Robotics
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License

BOB by k120189 is licensed under the Creative Commons - Attribution - Share Alike license.

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Do you have the original CAD files that can be edited?
Thanks

Hi,
I found this setup (https://123d.circuits.io/circuits/1460010-bob-the-biped) can some one tell me if the wiring is ok ?
Thanks :)

blic - in reply to Sm3cK

Hi,
The wiring is ok. I am not sure you will get much run time with a 9 volt battery. The Nano is inexpensive but you need a lot of extra wiring for servos. We like to use http://yourduino.com/sunshop2/index.php?l=product_detail&p=429 or http://yourduino.com/sunshop2/index.php?l=product_detail&p=344 for servo projects because the 3 pin bus makes wiring a piece of cake.

Jan 27, 2016 - Modified Jan 27, 2016

I tried looking for this alleged bobposer zip and cannot find it. Can someone GIVE ME A LINK to his coding? Also,k120189 can you post a short video on youtube of the assembly of bob with the product page of the parts list linked in the description? I hope you reply.

Hi,
You can find the Poser code at http://letsmakerobots.com/content/how-teach-your-bob-biped-move You might want to look at our Instructable http://www.instructables.com/id/ICBob-a-Bob-Inspired-Biped-Robot/ We have some code that will get you moving. Don't forget the VarSpeedServo library.

It seems Bob is a good project to start with robotics, that's why I'm searching some explanation on how to wire the whole thing on an arduino nano too. Help would be awesome :)

Hi I cant seem to find the code for BoB can you help?
Thanks

if you open the bobposer zip in the downloads there is some code and an app to develop and program routines for bob

Are there any instructions available on how to assemble this robot? Which controller and motors are neeed? Which screws were used?

Hi there - great design. My Bob struggles with balance...any tips for stopping him from falling over every other step? I've widened the feet a little which seems to help, but he still can't walk without falling over.
Thanks.

how are the knee brackets mounted and what batteries are you using and where are they mounted

4 AAA batteries are inside the head. I might try and get a couple of 2AAA battery holders and mount one on each foot. When I try to balance him on a finger, the centre of gravity is quite low still, around the base of the head.
Knees are mounted as per your photos. I'll try to get some photos uploaded soon...I'll upload the STL for the wider feet as well

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Im trying to print the Base file on a Replicator Dual but it just keeps failing halfway through. Anyone have similar issues or know a solution?

Thanks for the great little robot. Do you have the new head file that works with the HC-SR04 sonar??

pwave - in reply to yahma

hi do you know what pins i connect the HC-SR04 sonar to ?

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