CE Project: CE Bot [PART TWO]

[xheavenlyx]

Oops, sorry if the post came off as rude. lol, I was being sarcastic in the point #1. After that it was just other points

[KINETIC_JOULES]

It's okay. No biggie! ^_^ I just got google sketch up, and as soon as I figure out how to use it, I'll be working on the digital sketch of the bot.

[ash]

Originally Posted by KINETIC_JOULES

It's okay. No biggie! ^_^ I just got google sketch up, and as soon as I figure out how to use it, I'll be working on the digital sketch of the bot.

Kinetic, don't worry about sharing ideas. To be an engineer, you have to be confident in voicing out your ideas and thoughts. We are not here to criticize your ideas with malice: rather, we are here to discuss the points!

Doesn't matter if you are right or wrong.. whatever we discuss will be valuable to all. I've typed posts that seem a little silly (even when I was sure I was right), but understood better after discussions! Thats the problem we have in college classes.. most are scared or shy to ask the lecturer questions, in case he/she makes a fool out of themselves. This is the wrong mentality

So be sure to read and analyze the replies you have, and understand the different perspectives if it differs from your original ideas. I'm still an "aspiring" engineer like you (albeit with a year left), and I learn quite a lot from Crazy Engineers thanks to the rest of the CEans who contribute to the discussions

Good luck with the Google SketchUp. There should be lots of tutorials online available!

Originally Posted by xheavenlyx

4. @Ash: Yea exactly! I think we should have that kind of flex. We need it. Away from the chesis and with flexible links, something like the mars rover too. A mix. We have to design it properly.

5. Ash, Raj, KINETIC. We are reaching a state where the project is going pretty fast Now we can go a bit more mathematical. For every major design suggestion we must do a math study and write a small report (if possible).

If we could embed the motors inside the wheel hubs (like the Shrimp robot), we will only need to worry about the steering mechanism. Thats the only thing thats troubling me at the moment.. because if you want the wheel to be super flexible, the motor shafts would also need to be flexible. I believe the only way to do that is to use multiple universal joints or something. Gohm and patty, can you confirm this?

Also, is the ackerman equation valid for the rover? We should start running calculations with it soon, like xheavenlyx said. I've never really fabricated it before, even with lego.. (not enough pieces).

Im sorry for my lack of wireless testing I'm actually involved in another project at uni (CANSAT). The good thing is, it has a wireless aspect using radio modems and gps.. so I can indirectly source the research from that into CE Bot.

I'll try doing something with the WiFi this weekend *prays*

[KINETIC_JOULES]

Thanks, ash
As for my sketching progress. . . it's basically a pile of mess.
here's the ideas so far:

CE Bot design. Wheel base by ~AliceXinXchains on deviantART

Ce bot 2 by ~AliceXinXchains on deviantART

Ce Bot 3 by ~AliceXinXchains on deviantART

[ash]

Originally Posted by KINETIC_JOULES

Thanks, ash
As for my sketching progress. . . it's basically a pile of mess.
here's the ideas so far:

CE Bot design. Wheel base by ~AliceXinXchains on deviantART

Ce bot 2 by ~AliceXinXchains on deviantART

Ce Bot 3 by ~AliceXinXchains on deviantART

Good work, Kinetic! Much better than my first attempt in Google SketchUp

Can you this time make the axle angular like a triangle. Something like this, from the front view:

   
   _
  / \
 0   0

Where the "0"'s are the wheels. Hope you understand! Check out the Shrimp robot link to see what I'm hinting at. It'll be interesting to see what it'll look like!

[KINETIC_JOULES]

Like. . .I'm not getting it. The axle is supposed to be shaped like that?

[ash]

Its an additional idea, a modification of the original lego design. You know when you stand up with your feet far apart? You legs are sorta angled. Imagine your shoes as the wheels.. something like that, haha.

[KINETIC_JOULES]

Kinda like what I've already got?

[gohm]

Yes, you are correct on the joint idea ASh.

Originally Posted by ash

Kinetic, don't worry about sharing ideas. To be an engineer, you have to be confident in voicing out your ideas and thoughts. We are not here to criticize your ideas with malice: rather, we are here to discuss the points!

Doesn't matter if you are right or wrong.. whatever we discuss will be valuable to all. I've typed posts that seem a little silly (even when I was sure I was right), but understood better after discussions! Thats the problem we have in college classes.. most are scared or shy to ask the lecturer questions, in case he/she makes a fool out of themselves. This is the wrong mentality

So be sure to read and analyze the replies you have, and understand the different perspectives if it differs from your original ideas. I'm still an "aspiring" engineer like you (albeit with a year left), and I learn quite a lot from Crazy Engineers thanks to the rest of the CEans who contribute to the discussions

Good luck with the Google SketchUp. There should be lots of tutorials online available!



If we could embed the motors inside the wheel hubs (like the Shrimp robot), we will only need to worry about the steering mechanism. Thats the only thing thats troubling me at the moment.. because if you want the wheel to be super flexible, the motor shafts would also need to be flexible. I believe the only way to do that is to use multiple universal joints or something. Gohm and patty, can you confirm thi

Also, is the ackerman equation valid for the rover? We should start running calculations with it soon, like xheavenlyx said. I've never really fabricated it before, even with lego.. (not enough pieces).

Im sorry for my lack of wireless testing I'm actually involved in another project at uni (CANSAT). The good thing is, it has a wireless aspect using radio modems and gps.. so I can indirectly source the research from that into CE Bot.

I'll try doing something with the WiFi this weekend *prays*

[KINETIC_JOULES]

Here's more mess:
Ce bot 4 by ~AliceXinXchains on deviantART
Ce bot 5 by ~AliceXinXchains on deviantART
Ce bot 6 by ~AliceXinXchains on deviantART
Ce bot 7 by ~AliceXinXchains on deviantART
Ce bot 8 by ~AliceXinXchains on deviantART