Fluffy 2? It's still being built!

ya, somehow I never got around to putting anything up about Fluffy's reincarnate! if you care, ask away! otherwise, I'm kind of tired and I want to go to bed, so I'm not going into detail right this second.

looks tiny
is the outside a single piece of ti with rolled corners?

it is tiny! it's not Ti, 4130 Chromoly! have the weight for it!

Wow, that thing looks like seven flavors of awesome - I'm excited to see how it turns out.

Looks awesome Will....maybe 'Fluffy's revenge' (on ttatt)

Drum is still alu? blades bolted from inside and threaded into blades?

8 cel lipo? lol

Ha, not eight cells.

We figured out that a 5S 2650mAh 45C (continuous) LiPo would power just about anything in the 15lb class for 2 minutes.

A little secret--we still aren't sure if we are gonna successfully shape that ChroMoly armor yet!! Would be funny to have a 'naked' fluffy fighting.

no it wouldn't! wheels would get ripped off! we are bending that armor whether you like it or not!

btw, just got the drum together, sans slots for teeth, and boy, does it spin! spindown time is really gonna be a problem.

Same motor as before?

we're running 8 cel lipos (45c) in all our drum bots

I want to do very dirty things with your Weapon Mounting Plates....

Will Bales wrote:

no it wouldn't! wheels would get ripped off! we are bending that armor whether you like it or not!

btw, just got the drum together, sans slots for teeth, and boy, does it spin! spindown time is really gonna be a problem.

What did you do different, to get it to spin better?

Is the drum still alu?

You have two power switches? 1 switch couldn't handle the awesome power that is FLUFFY 2.

lol ya 2 switches! drum is still aluminum with S7 teeth. Roller bearings instead of bushings, and after a lot of time, effort, care, patience (and a lot of luck), it's perfect. it just keeps spinning round and round

Roller bearings aren't the way to go. Bushings will not let you down. Roller bearings can fail with extreme shock loads... but they are much better than ball bearings. We have seen bearings fail and it's not friendly, usually the hardened case cracks and the rollers are sent all over the arena usually followed by the weapon.

We have never had a bushing fail, distort shape, but not fail.

Good luck this week! I want to see active weapons win!

Crazy ChroMoly armor got bent to shape today!!
Will says that he thinks we can harden it---I dunno, but he usually comes through on things.

I have the same concerns about the bearings (vs bushings). This year we have three robots with massive spinning weapons, and all use bearings. I'm beginning to wonder if picking up some back up bushings wouldn't be prudent.

I am perpetually amazed at how much everything depends on good research and good design--even down to how challenging it is to machine a piece (or read the darn drawing!!)

Um, we (uta, utd, and rhs) have always used roller bearings and have never had any fail on us. And you can check the videos for yourself but they undergo quite a lot of load so I'm not sure what you're talking about when you say they break or crack.

Anyway, Good Luck guys.

So. I hear (and see) there's a robot.

well. i'm glad i read that.