Godo - Fully Customized Homemade Biped

I have a biped robot just

I have a biped robot just like that and I was wondering if you could show the code for making it walk without a PS2 remote?

Sweep servo is the base

Hi, RobotGoose. As I’m not a Jedi on programation, the base of my code is the sweep servo example on the Arduino IDE. Utilizing this way to make your code you’ll can’t determinate the position of each servo isolated, but you can utilize the “pos” reference of a principal servo and with arithmetic functions you’ll be able to determine the position of the others servos. Below are some examples of my code:

 for(pos = 90; pos > 71; pos -= 1)
{

DOIS.write(190 - pos);
TRES.write(175 - pos);
OITO.write(5 + pos);
NOVE.write(pos);
delay(50);
}

 

 for(pos = 100; pos > 61; pos -= 1)
{

QUAT.write((pos / 2) + 70);
CINC.write((pos / 2) + 50);
SEIS.write(pos + 40);
SETE.write(pos);
delay(40);
}

  

Try this initially with your “principal” servo. If you want it to go from 60º to 120º you’ll write the below code:

 for(pos = 60; pos < 120; pos += 1)
{
servoprincipal.write(pos);

delay(50);
}

 

Now, with two servos.

If you want your second servo goes from 120º to 180º, you’ll write the below code:

 for(pos = 60; pos < 120; pos += 1)
{
servoprincipal.write(pos);
servosecond.write(pos + 60); // the initial value of “pos” (60) + 60 = 120, and the final value of “pos” (120) + 60 = 180
delay(50);
}

This is my way to make a “biped walker code”. Should be better ways, but this is easy and works.

Any doubt ask me.

Great project! I hope to see

Great project! I hope to see this to be made into a Godo Mega pehaps? That would make my day :slight_smile:

UPDATED!

Another update guys…

Is Godo_mini going to be

Is Godo_mini going to be updated soon? That’s my favorite out of all of your projects(: this one is a close second too, of course.

Can you send me the parts

Can you send me the parts layout? I want to make one :))

Now I’m dedicating all the time for this project…

Well, I think not so soon, because now I’m dedicating all the time for this project (that are my main). But Godo_mini it’s not abandoned, I plan to conclude and improve it.

Looks good.I like the hips.

Looks good.

I like the hips.

Hips

Thanks, Revbryce! Some parts are inspired by the best biped walkers of this community. This part is one of them.

The design on this robot is

The design on this robot is great and well thought out! I like how you set up the body. I assume the microntroller and power goes on the back?

"Bag like" box

Thanks, Chaoman. You’re right. I’m planing to make a “bag like” box with the electronics and the batteries and put it on the back of the torso.

Bending?

I was thinking of the  PLM design I like so much and it occured to me that the robot may not be able to bend over and pick up an object? This isn’t true, right?

 

It can’t bend the legs completely like a standard configuration

It can’t bend the legs completely like a standard configuration of legs, but in this first pic you can see that it can do a good bending. This was my first attempt to make a biped, and I think with some improvements it could bend completely. Take a look in the second pic. This is the Robovie Nano, which utilizes PLM legs too (other kind), but it do a good bending.

   

nano-70483.jpg

 

PLM is my favorite configuration of legs because it provides a good stabilization and needs less servos.

any update?

hi, i really love your project. but it seems that you stopped working on it? 

would be interesting to see the 3d files for printing the legs, i think the connection to the servos is very elegant.

Thanks, assadollahi!

Duane is right. All my parts are handcrafted with polystyrene (https://www.robotshop.com/letsmakerobots/node/32828), and I don’t have 3D files, only 2D. And I stopped the working on this project. Now I’m working on more functional projects (in this case I mean robots able to execute many tasks) which with a biped it’s hard to do, at least with micro servos :slight_smile: .

Mech-Dickel

pity.

that’s really a pity, that you stopped working on it, i think it’s one of the most beautiful bipeds out there!

it seems to me that many people are starting with bipeds and make them walk and then at some point stop

working on them my feeling is that there is quite a lot of nice things to add after the first successful walk, 

esp when it comes to navigation and awareness of location etc. certainly, i can understand that you want 

to have a more capable bot, but adding some navigation and possibly at least one arm / hand would increase

its abilities strongly.


anyway, hope to see more projects from you, great mixture of learning capabilities and design style.

 

I’m really glad to read your

I’m really glad to read your words! This project is just stopped, not abandoned! :slight_smile: Just need stronger servos. I’m sure someday I’ll continue it!

What I’m working at this moment is this: https://www.robotshop.com/letsmakerobots/node/37634 .

Mech-Dickel

Why have i only just found this?!?!?!

Dickel, this thing is tremendous!

I need to get a project like this going - this is so beautifully crafted and planned.

Thank you vey much,

Thank you vey much, craighissett!

Bipeds are great! Hope someday to have enough stronger servos to complete this project (or an improved version).

i agree

I agree buddy. I love bipeds, and If i had a tenth of your ability to craft materials i would make one in a heartbeat.

Ive been looking at your MDi ein and godo mini too - if you ever decide to make any kits or any guides for noobs you can count on my custom!