MDi #3

Let's Make Robots Robots
41

amazing with a mouthwhy i

amazing with a mouth

why i don’t receive news

i save for that?

nice eyes to 

one idea a web cam in a middle head perhap a good idea

and one option when no batterie go alone for charge

can he speak?

i dont understand the ears? for detector?

best job 

congratulation 

42

The “ears” are PIR sensors,

The “ears” are PIR sensors, for human motion detection.

I have thought about the robot to make some sound (tones) when the batteries are low, I have also ordered some current sensors for this task, but I have not put this into practice yet.

What are you working on, amby?

43

After a break for some

After a break for some weeks, I made a small progress on MDi #3 today.

Dan M caught my attention for low obstacles (thank you very much, Dan M!), and first I thought of using some Sharp IR sensor, but I don’t have it at home and I’ve ended up using a HC-SR04 for this task.

mdi_number_3_037.jpg
mdi_number_3_037.jpg780×439 116 KB

 

I've also worked on a simple menu to choose between the modes/routines. EDIT: take a look on the Electronics (& programming) section, LCD 16x2 display subsection.

Unfortunately, fried the L298N breakout. :(     So I'll have to wait some weeks to have a new one (already ordered) and make a video running the new full code.

44

I saw that sensor holder and

I saw that sensor holder and asked myself, will Dickel make it appear like the rest of the body parts or will he keep that ugly clear acryl holder…nahh… i thought, he’s not gonna keep that acryl thingy… :slight_smile:

45

Hehhh, sorry to disappoint

Hehhh, sorry to disappoint you, my friend, but that holder will keep clear for now. :slight_smile:

As the H-bridge has fried, I’m working on a new project till I receive a new L298N, and for now I will not hold me to these details.

I said just for now… not for ever. :slight_smile:

Just a preview… https://www.youtube.com/watch?v=c-tJj0PCT-8

46

this bot is an absolutely

this bot is an absolutely awesome piece of beauty. I simply love every detail of it. Cant wait to see how the autonomous mode will work out. 

very impressive

47

Thank you very

Thank you very much! Certainly your skillful work inspired me.

48

Code to use two servos in place of dc motors

how do I replace the two dc motors for two continuous rotation servos in code?

49

Take a look at

Take a look at this http://arduino.cc/en/Reference/ServoWrite and this https://www.inkling.com/read/arduino-cookbook-michael-margolis-2nd/chapter-8/recipe-8-3 .

And just swap the DC motors’ statements for continuous servos, for example:

     if (ps2x.Button(PSB_PAD_UP))

{

     analogWrite(motor1enablePin, 200);

digitalWrite(motor1Pin1, LOW);

digitalWrite(motor1Pin2, HIGH);

 analogWrite(motor2enablePin, 200);
 digitalWrite(motor2Pin1, HIGH);
 digitalWrite(motor2Pin2, LOW);</strong>



}

     if (ps2x.Button(PSB_PAD_UP))

{
     LeftContinuousServo.write(180);
     RightContinuousServo.write(0); 
   }
50

A work of art, I love the

A work of art, I love the custom build. Very expressive. Reminds me of Short Circuit #2, where they had the toy-versions of Johnny 5. 

51

Amazing creation

Hi, 

This is an amazing creation 

You are very talented

This post gave me the urge to explore the DIY robotic world

May I have a link to the same polystyrene you are using ? 

52

Hi, matana21!Thank you very

Hi, matana21!

Thank you very much! … And sorry for the late answer, but I guess Duane has already helped you.

53

hi once again

I have some troubles with the software…

I cant find a way to switch between operation modes

Is it possible to share the source code?

 

Thanks again,

Matan.

54

Hi, Matan!Take a

Hi, Matan!

Take a look: https://drive.google.com/file/d/0B2gOXfxaf2xjRnZyQ0ktTU5mTWs/view?usp=sharing

55

MDi#3 is one cool customer.

This has to be one of the coolest bots ever.  I would simply stop trying to design my own and imitate yours (the sincerest form of flattery) if I could figure out how to cram more sensors and processing into a smaller space.  The problem of how to cram 12 sonars, 1 phone, a couple cameras, 2 arms, and treads into something resembling one of your creations has challenged me for far too long.  The challenge is how to have all those things without them interfering with one another or becoming too big, or too high a center of gravity.

Eventually I will get it.

56

Thank you very much,

Thank you very much, mtriplett!

I guess at least three sonars could be placed on the front of the chassis (like the one I’ve attached with the acrylic bracket) and plus three on the backside of the chassis. Others can be placed on the lateral (on the aluminum channel ???). A phone could be placed on the backside of the torso (if you won’t use it as a face for the robot).

I guess the cameras won’t be a problem (just put them in the eyes).

I would love to see your version of MDi #3!

 

57

This project is both intimidating and inspiring.

Well done. I love to see anything  built using PVC.

58

Intimidating?! LOLSimple

Intimidating?! LOL

Simple materials! I love it!

59

Your work is great! great example to follow!!

I just got a 3d printer and is wokring fine, but i don’t know how to transfer your templates draw to this printer. I’m new i just print the test examples that came with the software. I need help in how to make your template in a object, thanks for any help!

 

60

Thank you very much,

Thank you very much, gsxr02!

I don’t usually work with 3D designs and unfortunately I don’t have 3D files of this project. 

But eventually I work with Google SketchUp and it’s very simple to work with. And I guess there is a plugin to export the SketchUp file to a 3D printable file.

You’ll need to modify my 2D files into 3D, but I guess with Google SketchUp (or even other 3D software) it will be easy.