Da Mekboyz

[Jamin]

uhh

Yeah if you actually plan on building a combat robot you should actually figure out how to get connected with people. it's really not that hard at all.
http://www.facebook.com/groups/RoboCommunity/

[R1885]

For reference, this is the top ranked bot in the US.

[Jamin]

For reference, this is the top ranked bot in the US.

Huh? I thought Sewer Snake was in the top these days.

[R1885]

For reference, this is the top ranked bot in the US.

Huh? I thought Sewer Snake was in the top these days.

OS overtook SewerSnake at Robogames.

[Badnik96]

Botrank.com has an active list of the robots which have competed in the last year or so.

[Phoenyx]

uhh

Yeah if you actually plan on building a combat robot you should actually figure out how to get connected with people. it's really not that hard at all.
http://www.facebook.com/groups/RoboCommunity/

Something you might want to know about me: I hate facebook, and I hate the fact that you really cant do much online anymore without it even more.

For reference, this is the top ranked bot in the US.

Didn't that thing compete in Battlebots 5.0?

Botrank.com has an active list of the robots which have competed in the last year or so.

Thanks. That will really help.

[Jamin]

uhh

Yeah if you actually plan on building a combat robot you should actually figure out how to get connected with people. it's really not that hard at all.
http://www.facebook.com/groups/RoboCommunity/

Something you might want to know about me: I hate facebook, and I hate the fact that you really cant do much online anymore without it even more.

For reference, this is the top ranked bot in the US.

Didn't that thing compete in Battlebots 5.0?

Botrank.com has an active list of the robots which have competed in the last year or so.

Thanks. That will really help.

Then have fun missing out on a chance to get connected with fellow builders and event organizers.

[Phoenyx]

Then have fun missing out on a chance to get connected with fellow builders and event organizers.

Which is why I hate Facebook even more. People use it at the expense of all other forms of communication, and all it's really doing is making one guy rich off of people's personal information.

But forget facebook. 

[Jamin]

Yeah, I hate the fact that the human race has developed the technology that allows people from around the world to stay connected with each other in an organized fashon. We need to go back to the 1800's and use telegrams to communicate, that would make so much more sense.

[R1885]

For reference, this is the top ranked bot in the US.

Didn't that thing compete in Battlebots 5.0?

Gary Gin(The builder of Original Sin) competed with Big B in series four and five. Big B still competes today, and is ranked fith historic on BotRank.
As for Original Sin, its first tournament was RoboGames 2006, and it steamrolled the competition. To give you an idea on how good it is, Original Sin has won a total of eight competitions, five of which it won with out a loss.

[Phoenyx]

Yeah, I hate the fact that the human race has developed the technology that allows people from around the world to stay connected with each other in an organized fashon. We need to go back to the 1800's and use telegrams to communicate, that would make so much more sense.

Except we wouldn't need to do that. We're not using facebook to talk now, are we?

But I digress...

Forget facebook. 

Now can we move on? This isn't a topic about facebook.

[Phoenyx]

http://www.lynxmotion.com/c-110-rc-combo-kit.aspx

Just curious, but would this be any good for a starting platform for a smaller robot? Of course it wouldn't be an insect class, but maybe a hobbyweight?

[Somebody]

For reference, this is the top ranked bot in the US.

Didn't that thing compete in Battlebots 5.0?

Gary Gin(The builder of Original Sin) competed with Big B in series four and five. Big B still competes today, and is ranked fith historic on BotRank.
As for Original Sin, its first tournament was RoboGames 2006, and it steamrolled the competition. To give you an idea on how good it is, Original Sin has won a total of eight competitions, five of which it won with out a loss.

It did get a bit lucky in the finals of Robogames this year though. Electric Boogaloo just conked out really.

[Somebody]

And here: http://www.youtube.com/mattmaxsr

watch some videos there.

[SKBT]

MikeNCR also has a bunch of videos of east coast events http://www.youtube.com/user/mikencr/

http://www.lynxmotion.com/c-110-rc-combo-kit.aspx

Just curious, but would this be any good for a starting platform for a smaller robot? Of course it wouldn't be an insect class, but maybe a hobbyweight?

Nope, not at all. It's PVC so you'd end up replacing pretty much everything with steel or UHMW anyways. That and it runs a sabertooth and sabertooths tend to randomly die...

The motors it comes with are really slow and underpowered for a combat robot. 250 rpm with 4.75" wheels is going to be slow.

Final drive axle rpm x wheel diameter / 336= MPH

so...

253 X 4.75 /366 = 3.2 mph

That's really really slow. My 30 is geared for about 10 mph and it is a little above average in terms of speed. If I had to guess I'd say average top speed for a 12 or 30 lb robot is 6-8 mph.


with 4" wheels you want to look for a final output around 550-900rpm

[Phoenyx]

And here: http://www.youtube.com/mattmaxsr

watch some videos there.

First one I watched was Sewer Snake vs Raging Scotsman. It looks like people use flamethrowers to get around the active weapon requirement, if it's still enforced.

Or is that a sportsman class rule?

MikeNCR also has a bunch of videos of east coast events http://www.youtube.com/user/mikencr/

http://www.lynxmotion.com/c-110-rc-combo-kit.aspx

Just curious, but would this be any good for a starting platform for a smaller robot? Of course it wouldn't be an insect class, but maybe a hobbyweight?

Nope, not at all. It's PVC so you'd end up replacing pretty much everything with steel or UHMW anyways. That and it runs a sabertooth and sabertooths tend to randomly die...

The motors it comes with are really slow and underpowered for a combat robot. 250 rpm with 4.75" wheels is going to be slow.

Final drive axle rpm x wheel diameter / 336= MPH

so...

253 X 4.75 /366 = 3.2 mph

That's really really slow. My 30 is geared for about 10 mph and it is a little above average in terms of speed. If I had to guess I'd say average top speed for a 12 or 30 lb robot is 6-8 mph.


with 4" wheels you want to look for a final output around 550-900rpm

I have a feeling that you didn't read the page...

The Mechanics
The robot chassis is made from heavy-duty anodized aluminum structural brackets and ultra-tough laser-cut Lexan panels. It includes four 12.0vdc 30:1 gear head motors and our 4.75" tires and wheels.

Speed's still a little slow (4 MPH), but I could upgrade that. I mainly want to know if it would be better to buy materials separately rather than using a Lynxmotion rover kit.

[SKBT]

First one I watched was Sewer Snake vs Raging Scotsman. It looks like people use flamethrowers to get around the active weapon requirement, if it's still enforced.

Or is that a sportsman class rule?

Sportsman class rule

The Mechanics
The robot chassis is made from heavy-duty anodized aluminum structural brackets and ultra-tough laser-cut Lexan panels. It includes four 12.0vdc 30:1 gear head motors and our 4.75" tires and wheels.

Speed's still a little slow (4 MPH), but I could upgrade that. I mainly want to know if it would be better to buy materials separately rather than using a Lynxmotion rover kit.

Where I read it was PVC. I still wouldn't buy it. It's mystery aluminum^TM and lexan of unknown thickness and weighs "n". Most of the parts such as the motors, hubs, and esc would need to be replaced anyways.

I can attest to the killability of a Sabertooth. I've killed a 2x12 in a 3lb robot with serious shock mounting. Stuff just kinda pops off the board.

[Conraaa]

On the flipside, I ran one (Sabertooth 2x12) in a 30lb bot that took various hits from LS4 and other robots and it was still working after about 10 matches in a day.
Just sayin'. They seem to fluctuate wildly.

[Phoenyx]

First one I watched was Sewer Snake vs Raging Scotsman. It looks like people use flamethrowers to get around the active weapon requirement, if it's still enforced.

Or is that a sportsman class rule?

Sportsman class rule

The Mechanics
The robot chassis is made from heavy-duty anodized aluminum structural brackets and ultra-tough laser-cut Lexan panels. It includes four 12.0vdc 30:1 gear head motors and our 4.75" tires and wheels.

Speed's still a little slow (4 MPH), but I could upgrade that. I mainly want to know if it would be better to buy materials separately rather than using a Lynxmotion rover kit.

Where I read it was PVC. I still wouldn't buy it. It's mystery aluminum^TM and lexan of unknown thickness and weighs "n". Most of the parts such as the motors, hubs, and esc would need to be replaced anyways.

I can attest to the killability of a Sabertooth. I've killed a 2x12 in a 3lb robot with serious shock mounting. Stuff just kinda pops off the board.

Probably a typo. The main product page is the best thing to look at, rather than the smaller ordering page.

Also, I've built Lynxmotion kits before (a BRAT 6DOF Biped, specifically) and at least for a biped the aluminum brackets hold up well. As for the Lexan, it's quarter-inch. The kit weighs 4.6 lbs altogether, so it would probably be a Hobbyweight.

I just want to know if it would cost me more to custom-build rather than just modify the chassis, and whether it would be worth the savings.

[R1885]

First one I watched was Sewer Snake vs Raging Scotsman. It looks like people use flamethrowers to get around the active weapon requirement, if it's still enforced.

Or is that a sportsman class rule?

Sportsman class rule

The Mechanics
The robot chassis is made from heavy-duty anodized aluminum structural brackets and ultra-tough laser-cut Lexan panels. It includes four 12.0vdc 30:1 gear head motors and our 4.75" tires and wheels.

Speed's still a little slow (4 MPH), but I could upgrade that. I mainly want to know if it would be better to buy materials separately rather than using a Lynxmotion rover kit.

Where I read it was PVC. I still wouldn't buy it. It's mystery aluminum^TM and lexan of unknown thickness and weighs "n". Most of the parts such as the motors, hubs, and esc would need to be replaced anyways.

I can attest to the killability of a Sabertooth. I've killed a 2x12 in a 3lb robot with serious shock mounting. Stuff just kinda pops off the board.

Probably a typo. The main product page is the best thing to look at, rather than the smaller ordering page.

Also, I've built Lynxmotion kits before (a BRAT 6DOF Biped, specifically) and at least for a biped the aluminum brackets hold up well. As for the Lexan, it's quarter-inch. The kit weighs 4.6 lbs altogether, so it would probably be a Hobbyweight.

I just want to know if it would cost me more to custom-build rather than just modify the chassis, and whether it would be worth the savings.

You would end up spending over 400 dollars what could be done better for 250.