pic: Final 2011 Drivetrain

[Cory]

This has to be a joke. Conservatively, that would be a NINE HUNDRED POUND block of aluminum. 7075 is about $7-10 per pound. That's a $6000-9000 block of aluminum. No sponsor is stupid enough to waste that kind of material. This also ignores the fact that there is no such thing as 7071 aluminum. The frame would also be substantially weaker than a properly constructed welded tube or sheet-metal chassis.

Basically...obvious troll is obvious.

[SirTasty]

In that case, I must leave a well-deserved,

[114Klaatu0x72]

Decagon wheels mounted directly the cims will be the drive train of the future.

[MrForbes]

Very nice design! Robotics is supposed to be fun...this is definitely fun

[Tom Ore]

I agree that this is good fun - most likely this is someone's practical joke on CD. If not, one consolation is that you learn more from failure than success.

[Sean Raia]

Consider the following: his name is poohbear, this was his first post, his location is "the dirty south", and he claims his robot can go 105 miles per hour... this all sounds pretty legitamate to me.

[poohbear]

Originally Posted by 114Klaatu0x72

Decagon wheels mounted directly the cims will be the drive train of the future.

I have to agree with this one. You all will see!

[ratdude747]

i smell troll...

[AlexH]

So its about 865 amps to spin the wheels (assuming 6" wheels and a 120lb bot) and victors are rated at 40 amps. That comes out to 22 victors per side times 4 (22 victors per each motor) is 88 victors and that comes out to $7920 excluding shipping. Are you sure you want to spend almost 8 grand on ESC's?

Also the CIMS stall current is 133 amps so you might want to find a better way to drive your bot because 865 is 6 1/2 times the rated stall current of the CIMs

[Trent B]

Originally Posted by AlexH

So its about 865 amps to spin the wheels (assuming 6" wheels and a 120lb bot) and victors are rated at 40 amps. That comes out to 22 victors per side times 4 (22 victors per each motor) is 88 victors and that comes out to $7920 excluding shipping. Are you sure you want to spend almost 8 grand on ESC's?

Also the CIMS stall current is 133 amps so you might want to find a better way to drive your bot because 865 is 6 1/2 times the rated stall current of the CIMs

Forget about the number of victors needed. You have a 120 amp kill switch

[basicxman]

Originally Posted by Cory

Basically...obvious troll is obvious.

Originally Posted by SirTasty

In that case, I must leave a well-deserved,

Agreed, but my lord this thread was funny. I'm giving the poster a rep.

[Thermal]

Great design! But, there is one small issue. You have no fillets for strength in your design.

Add some fillets and you'll be indestructable! Also, go with 9 sides, because like JVN said, nonagonal robots have a 100% winning percentage.

[Joe Schornak]

After viewing this robot design, and the request for veteran tips within, I decided that it would be a good idea to put together a robot design guide, so that we can all learn to design effective robots in the future.

BEHOLD! Joe Schornak's Robot Design Guide

[nighterfighter]

Freshmen with drills and jigsaws ARE a cheap alternative to a 5 axis mill though!

[DavidGitz]

This is pretty awesome, and loving the Picard Maneuver reference. A small part of my mind wonders though, if this poster wasn't trolling. Then I would feel bad, on a couple different levels.