4265 2014 competition bot render
 

render of 4265's competition bot, Featuring our own Dragonfly drivetrain. Feel free to ask any questions.

Re: 4265 2014 competition bot render
 

So you just freely swap between mechanum and normal wheels?
:eek:

Re: 4265 2014 competition bot render
 

#Mindblown :p

Re: 4265 2014 competition bot render
 

That's pretty cool. Team 1699 is working on a drivetrain like that, but nothing that fancy.

Re: 4265 2014 competition bot render
 

3663 also has a similar design, but we are only running 2 traction wheels that are 6" for more torque.

Re: 4265 2014 competition bot render
 

Could you explain what you mean by this?

Re: 4265 2014 competition bot render
 

He may mean they only have two octocanum modules? That way the first set of wheels (probably mechanum) don't shift and the wheels in back do. I'm also sort of confused by what he means.

Re: 4265 2014 competition bot render
 

Or maybe he just means that they're going with mecanum.

Re: 4265 2014 competition bot render
 

:confused: But he states that they're using traction wheels.

Re: 4265 2014 competition bot render
 

I think he means that they're using Two 6 inch traction wheels per side. I think the "similar design" that he was referring to is in the shooter and pick-up mechanism, not necessarily the drive train.

Re: 4265 2014 competition bot render
 

Seriously none of this helps. Clearly no one has any concrete idea what he's talking about, which is why I asked him to expand.

Re: 4265 2014 competition bot render
 

And so the mystery of the two traction wheel octocanum continues...

Re: 4265 2014 competition bot render
 

or would it be a sextacanum? If he is actually talking about having only 2 traction wheels

Re: 4265 2014 competition bot render
 

From the CAD drawing, it looks as though only two of the traction wheels are powered. Also, two of them appear to be smaller than the others. Perhaps that is what OP meant?

Re: 4265 2014 competition bot render
 

That was in response to zinthorne, not the OP.

You'd have to be crazy to build something called a sextacanum with a bunch of high school students.

Re: 4265 2014 competition bot render
 

There are four ball shifters with 1 CIM an 1 mini CIM powering the drivetrain. Mechanums need to be individually powered to make full use of their strafing abilities.

Re: 4265 2014 competition bot render
 

Wow, Octocanum modules and ball shifters? That's quite a bit of weight! How much weight are you guys ball parking?

Re: 4265 2014 competition bot render
 

Love the dragonfly, I so wish I could drive it like I stole it!

Re: 4265 2014 competition bot render
 

The tension design wasn't really cutting it, so we changed to a much better pneumatic version.

Full 4k can be found here: https://dl.dropboxusercontent.com/u/...ition%20v2.png


Also, Solidworks is showing weight at around 115 without battery and bumpers, although a few things do not have accurate weights.

Re: 4265 2014 competition bot render
 

Very nice indeed. Thank you for sharing. Marie