Pic: Team 935's nearly complete chassis [Archive]

railerobotics

13-01-2008, 23:14

http://i10.photobucket.com/albums/a121/tkbinks/Robotics/Chassis2.jpg

Here's a little preview of our chassis for this year. Good Luck Everyone! :cool:

http://www.team935.info

Jaybee1405

14-01-2008, 00:19

please don't tell me you fabricated that entire frame :yikes:
it looks awesome

very nice, GL with the meca's

1619Aaron

14-01-2008, 00:22

Beautiful indeed.

Andy L

14-01-2008, 01:03

Is it just me or does it look like that no matter what way you put it down that the wheels don't touch or that the chassis will be very, very low

laultima

14-01-2008, 01:08

Im pretty sure if you just put that on the field, had all your drive team have slightly annoyed looks on their face, maybe so red lights, you could win by sheer intimidation.

awesome job on the frame guys, wish ours looked that good.

C222

14-01-2008, 04:08

That looks awesome. we were going to use mecanum wheels, but that was ruled out. our frame is probably 80/20 again.

railerobotics

14-01-2008, 16:22

As well as being fabricated within a week, the chassis is very low, and touches the ground. Thanks for the positive feedback. :cool:

Alex Cormier

14-01-2008, 16:25

As well as being fabricated within a week, the chassis is very low, and touches the ground. Thanks for the positive feedback. :cool:

are you guy afraid and take note that the ground is not exactly level? around the corners and middle area the ground is above so that the railings have something to attach to so they don't fall over.

i tried to get a drive base as low as possible until someone told me that and i went, oh no.

railerobotics

14-01-2008, 17:01

We have the same height we used last year, but we ended up cutting off the front / back corners so we could climb ramps. Right now, we're about 7/8" off the ground.

Urban Hawk

14-01-2008, 17:18

from the look of things you might......... want to downsize it a bit.

railerobotics

14-01-2008, 17:18

We have the same height we used last year, but we ended up cutting off the front / back corners so we could climb ramps. Right now, we're about 1/4" off the ground.

Following up on that...

http://i10.photobucket.com/albums/a121/tkbinks/Robotics/IMG_3298.jpg

And the wheels...

http://i10.photobucket.com/albums/a121/tkbinks/Robotics/IMG_3320.jpg

Again, feedback is good.

diesel

14-01-2008, 18:36

Right now, we're about 1/4" off the ground.

The LANE DIVIDER is attached to vertical posts that are anchored to supporting plates
covered by carpet. Note that these plates will create a bump in the carpet approximately 1/2 inch :confused:
tall, and as a result the surface of the TRACK will not be perfectly flat. ROBOTS must be designed
to accommodate these surface variations.

Ya, I'm not sure what your plan is. :(

Armando Gonzalez

14-01-2008, 18:40

How much does it weigh?

DustinB_3

14-01-2008, 19:25

Thanks for the replies. Our chassis is 7/8" off of the ground and our CIM are 9/16" off the ground. I am not sure who was logged on to our railerobotics account but the statement about it being 1/4" off the ground is incorrect. Even with 9/16" we're cutting it close. Some how our team missed that part of the rules so I really appreciate the feed back.

We have not yet weighed the frame. I'll report back when we do.

=Martin=Taylor=

14-01-2008, 19:44

#25 chains and no tensioners? How does that work?

cobrawanabe1699

14-01-2008, 20:03

That's incredible. How was the machining done??? Looks like CNC possibly???

cardinalman86

14-01-2008, 21:05

That is pretty cool. We might try Mech. wheels this year, but who knows. that is awesome. how'd u make it so fast?

Steve Kaneb

14-01-2008, 21:13

#25 chains and no tensioners? How does that work?

In 05, when 190 did mecanum, the chain was short enough (as it appears in these photos) to not need tensioners.

I still worry about the lack of articulation to keep your wheels on the ground. If you lose contact with one wheel (which seems likely with all of the high CoGs we're going to see), you lose control.
Unless you have suspensions I don't see, I'd watch out for control issues emanating from the lack of contact.

swamp_child

14-01-2008, 21:39

This is a veery beautiful chassis. Only concern is the same as everyone else's it may be too low. otherwise it looks pro!

Zultraranger

14-01-2008, 21:41

Looks awesome, good luck during the season.

Seraph117

14-01-2008, 21:45

one question... is that legal? o_O

lukevanoort

14-01-2008, 21:57

one question... is that legal? o_O
It does not seem to break the rules. Why would it be illegal?

Seraph117

14-01-2008, 21:59

it just seems to big to be legal, maybe they made the chassis to the maximum it could be?

i dont know, it just seems to big

lukevanoort

14-01-2008, 22:04

it just seems to big to be legal, maybe they made the chassis to the maximum it could be?

i dont know, it just seems to big
That is primarily an illusion. This robot happens to be a chassis of the "wide" aspect ratio (38" dimension in the front), while most robots you see are of the "long" aspect ratio (38" dimension on the side). Wide aspect ratio robots strike me as an odd choice this year, but to each his own.

DustinB_3

14-01-2008, 22:26

First, we have not yet installed the chain tensioners. It actually drives very smooth without them but we are going to add them.

We used mecanum wheels last year with a similar chassis. We never had control issues so we never added suspension. It seems to drive extremely well without it.

The robot was done on a CNC machine.

And like lukevanoort stated we are very close to max dimensions and decided to make the wider longer than it is wide. Since there was a rule that stated that you could reach more than 80 in we decided on this to give us a little more reach.

Thanks for all the replies and feedback.

MCahoon

15-01-2008, 15:32

I'm curious about your reference to a rule "that stated that you could reach more than 80 in".

Could you provide a reference from the manual? The 80 in horizontal distance limit still applies

Sam Fisher

15-01-2008, 15:33

Looks great. I am drooling

Do I see grips by the wheels so that you can pick it up? Good ideal. Good luck

BRAVESaj25bd8

15-01-2008, 15:35

it just seems to big to be legal, maybe they made the chassis to the maximum it could be?

i dont know, it just seems to big

The only thing I find illegal about that chassis is that it's too nice. You guys did an AWESOME job. I am also curious about manufacturing though. Waterjet perhaps? I don't know if you will have the time, weight, or desire to do so, but I think if you powdercoated it to be your team colors, you would hear people's jaws drop as they see it. Sweeeeeeeet chassis.:D

EricH

15-01-2008, 15:39

Since there was a rule that stated that you could reach more than 80 in we decided on this to give us a little more reach.

I'm curious about your reference to a rule "that stated that you could reach more than 80 in".

Could you provide a reference from the manual? The 80 in horizontal distance limit still appliesI've found that sometimes people forget the negation. However, last year's (80") rule was interpreted in such a way as to allow extra length. But, last year's rules do not apply! If you reach more than 80", then you have broken the rule. (I'm working on avoiding that too-long robot.)

Illegalsocks

15-01-2008, 15:49

http://i10.photobucket.com/albums/a121/tkbinks/Robotics/Chassis2.jpg

Here's a little preview of our chassis for this year. Good Luck Everyone! :cool:

http://www.team935.info

it looks like you mounted a laser ot your bot due to the way the light is :cool:

i_am_samus

15-01-2008, 15:59

Is it just me, or is there no gear box? Or is yours really small and nice? xD

railerobotics

15-01-2008, 16:07

You are correct in that there are no gearboxes. The ratio on our sprokets and the use of CIMS allows for great control. This is especially true with this year game. If time allows we would like to Yellow dip the chassis.
As regards the ablity to reach higher than 80" we will see. We may have to limit that movement:D

GaryVoshol

15-01-2008, 16:27

I've found that sometimes people forget the negation. However, last year's (80") rule was interpreted in such a way as to allow extra length. But, last year's rules do not apply! If you reach more than 80", then you have broken the rule. (I'm working on avoiding that too-long robot.)
With a wide robot, the front bumper will be closer to the middle of that mythical 80" cylinder than with a long robot. This would allow for a longer reach of the arm to snag in the ball. I haven't drawn it out to figure exactly, but I think it would be in the neighborhood of 1/2 the difference between length and width - so maybe 5"?

MOE

16-01-2008, 22:43

HELLOOOoo from the North East
Looks great is that in the 120 lb. class ?????? see you soon
MOE and Team 88 TJ2:D

Jaybee1405

16-01-2008, 22:51

stop spamming every thread

Corey Oostveen

16-01-2008, 22:56

I do have to point out the main fuel for getting the bot done so fast is in the background Sitting on the bench. lol:) Great Chassis Guys

boonski

21-01-2008, 16:33

Just one question, I'm not sure if this has been answered before.... but what are the dimensions?

DustinB_3

21-01-2008, 16:36

The Dimensions are approximately 37 inches by 26.5 inches

DarkFlame145

21-01-2008, 19:25

that frame, just blows my mind away.

DonRotolo

21-01-2008, 19:48

That is one very nice piece of design and construction. I am jealous. Best of luck in the game, I hope I get a chance to see that machine in action.

Also, that's a really well-composed photo, with the sunlight on the lockers and the vice visible - maybe by accident, but nice nevertheless.

Don

Matt H.

21-01-2008, 19:54

teammember_342

21-01-2008, 20:08

That is a small robot.:rolleyes:

DustinB_3

22-01-2008, 22:57

I would like to say that your robot looks amazing! The only problem I see is the accessibility of the main breaker. It seems to be blocked by the battery and with any type of mechanism on the bot it might well be very hard to reach.

If your referring to the electronics board I would like to let you know that the board that is there is just a test board. Our electronics will be quite a bit more organized on the board we use for competition. When I find a pic of last years electronics board I'll post it.