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-   -   Need help! FRC2826 Wave Robotics 2016 Mecanum Drive! (http://www.chiefdelphi.com/forums/showthread.php?t=142400)

Tyler Olds 23-01-2016 14:11
Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
https://www.youtube.com/watch?v=WmvuXQUobQM

Hello everyone we need your help!

We are an 8th year team and are really trying to improve from our last years performance. We really think our drive has a good shot of overcoming the obstacles.

We thought that 20" wheels would work well for us.

Please let us know if you think this is legal and a good idea.

jkelleyrtp 23-01-2016 14:17
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
I think the wheel pods are an excellent idea and mechanum is perfect for this game.

This reminds me very much of the scorpion tank from Halo, which is a perfect vehicle for traversing rough terrain.

Image for Reference

See you on Einstein!

Tottanka 23-01-2016 14:19
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Ye, you guys sure have a lot to improve on from last year. you were awful

Thad House 23-01-2016 14:20
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by Tyler Olds (Post 1528939)
https://www.youtube.com/watch?v=WmvuXQUobQM

Hello everyone we need your help!

We are an 8th year team and are really trying to improve from our last years performance. We really think our drive has a good shot of overcoming the obstacles.

We thought that 20" wheels would work well for us.

Please let us know if you think this is legal and a good idea.
Nah. I think you need even bigger wheels. I think I might have read a rule you need 2 foot wheels. And some swerve mecanums would help too.

Boe 23-01-2016 14:22
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
You might want to check the control system rules otherwise looks legal to me.

Hallry 23-01-2016 14:28
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
But the bumpers! Think about the bumpers!

Thank you for bringing some amusement while us on the upper east coast are snowed in for the weekend...:)

alicen 23-01-2016 14:29
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
needs suspension!

asid61 23-01-2016 14:51
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quite impressive! Looks pretty slow, although if you actually went with 20" mecanums you could boast being the only mecanum robot this year.

Tyler Olds 23-01-2016 14:58
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by asid61 (Post 1528963)
Quite impressive! Looks pretty slow, although if you actually went with 20" mecanums you could boast being the only mecanum robot this year.
I will take your steak bet sir stating that there will not be any mecanum robots this year.

I prefer medium-rare

PayneTrain 23-01-2016 15:00
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by Tyler Olds (Post 1528939)
https://www.youtube.com/watch?v=WmvuXQUobQM

Hello everyone we need your help!

We are an 8th year team and are really trying to improve from our last years performance. We really think our drive has a good shot of overcoming the obstacles.

We thought that 20" wheels would work well for us.

Please let us know if you think this is legal and a good idea.
Tyler, your progress with mecanum (mechenim?) is astounding with regards to your resources. However, maybe you want to consider making a simpler robot that can be reliably operated if you want to break through and make it to Einstein some day.

One thing I would caution you on is that it appears you are using the gaming router from 2009 in your robot. While it was no doubt part of an undeniably successful control system rollout over 7 years ago, we since have undergone multiple changes to the radios. The newer Wi-Fi radios now connect in under a minute (a vast improvement from the 2008 and earlier radios that gave almost instant connections, depriving us of any drama from field reset). Also you should paint your PDB black.

IronicDeadBird 23-01-2016 15:14
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Man you guys have a short build season...

Tyler Olds 23-01-2016 15:25
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by IronicDeadBird (Post 1528979)
Man you guys have a short build season...
We're 100% mentor built.

XaulZan11 23-01-2016 15:30
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by Tyler Olds (Post 1528990)
We're 100% mentor built.
I'm always impressed with the actors you guys find for the competitions. Your 'students' always seem to know how the robot works. It's very inspiring!

Sperkowsky 23-01-2016 16:01
First off all your robot from last year sucked. You failed at making the most simple robot design ive ever seen. I'm surprised you passed inspection. But...

Makeynum wheels look like da purfect choice for dis game.

One cristizimsn those wheels are not big enough. To get over the obstacles you want at least 80" wheels. I Hurd u can buy them at your Lokal tractor store.

Great robot tho excited to see you guys. Mb you will get to world's. And one day if you keep tryin you can go to Einstein.

ayeckley 23-01-2016 16:08
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Just think how much better it would work if the Mecanum wheels were installed correctly!

jajabinx124 23-01-2016 18:01
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
This is a no brainer, of course you guys should go with 20" mecanum wheels! Opponent's defenses will shriek in fear once they see this perfect defense damaging drive-train.

philso 23-01-2016 18:04
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
You need to make the rubber on the rollers thinner and then mount them on spinner-wheel hubs.

http://just-spinner-rims.com

Tyler Olds 23-01-2016 18:40
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by JPBlacksmiths (Post 1529058)
Lots of issues with this:

BUMPERS!!!! you will not be able to mount bumpers on that. The top of bumpers can be max, 12 inches off the floor.

That bump you demonstrated is only one obstacle, and it struggled with that. Don't forget that there is a 4.5 inch bump, too. Also, the obstacle with the bumps that are different heights is 100% going to cause you to get stuck. Lets also not forget about the low bar, I think that is self explanatory. Lastly, every obstacle is metal, not wood, so you are going to crack a roller if you hit it to hard.

How are you going to be able to shoot or defend? You're not. If i'm defending and I see mecanim, I thank God. That makes my job 10,000 times easier becuase one tap and you're rolling.

Last year was the year of mecanim, this year's game has no application for it. Go with pneumatic wheels or kitbot wheels, you will have way more success.

Also I'm sorry, but the last time I checked FRC is a program for high schoolers, just saying:]
Thank you for your input. We have some disagreements when it comes to the true power of mecanum... but otherwise I have to say you make some very valid points. We have tried to get more student engagement but all they want to do is look at pictures of cats with something about 'haz chezbrgr"...

tindleroot 23-01-2016 18:44
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
The choice of mecanum isn't a big deal compared to scouting. You need to find a high ranked team and beg them to pick you, that way you can be on the best alliance. Although, now that I think about it, they are probably more likely to pick you if they see your great mecanum drivetrain, so that's probably a good idea.

orangemoore 23-01-2016 19:00
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by JPBlacksmiths (Post 1529058)
Lots of issues with this:

BUMPERS!!!! you will not be able to mount bumpers on that. The top of bumpers can be max, 12 inches off the floor.

That bump you demonstrated is only one obstacle, and it struggled with that. Don't forget that there is a 4.5 inch bump, too. Also, the obstacle with the bumps that are different heights is 100% going to cause you to get stuck. Lets also not forget about the low bar, I think that is self explanatory. Lastly, every obstacle is metal, not wood, so you are going to crack a roller if you hit it to hard.

How are you going to be able to shoot or defend? You're not. If i'm defending and I see mecanim, I thank God. That makes my job 10,000 times easier becuase one tap and you're rolling.

Last year was the year of mecanim, this year's game has no application for it. Go with pneumatic wheels or kitbot wheels, you will have way more success.

Also I'm sorry, but the last time I checked FRC is a program for high schoolers, just saying:]
I literally can't tell if this post is a joke or completely serious. :confused: :confused:

s_forbes 23-01-2016 19:34
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Are you sure you want to post your design this early in the build season? What if someone else steals your idea?

IronicDeadBird 23-01-2016 19:40
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by Tyler Olds (Post 1528939)
https://www.youtube.com/watch?v=WmvuXQUobQM

Hello everyone we need your help!

We are an 8th year team and are really trying to improve from our last years performance. We really think our drive has a good shot of overcoming the obstacles.

We thought that 20" wheels would work well for us.

Please let us know if you think this is legal and a good idea.
So after a long strategic review I have come to this conclusion.
Why not make this a mecHanum drive?
If you used those wheels and in the center perpendicular to the wheels added a 20 inch powered drop omni wheel and a gyro you could easily have an unpushable drive base. If anyone pushed your sides you could push back with the omni wheel which should EASILY have enough force to handle itself in this years game.

barn34 23-01-2016 20:29
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
You guys are so scrub tier. 8 inch pneumatic tire swerve. That's what pros use, yo. ;) lol

EmileH 23-01-2016 20:56
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
"Uploaded on December 10th, 2009"

jkelleyrtp 23-01-2016 21:01
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by EmileH (Post 1529149)
"Uploaded on December 10th, 2009"
Shhhhh you're ruining it...

Chak 23-01-2016 21:15
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by EmileH (Post 1529149)
"Uploaded on December 10th, 2009"
Wait...how...? :confused: Was this planned for 7 years? Is there a trick?

rich2202 23-01-2016 21:22
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by EmileH (Post 1529149)
"Uploaded on December 10th, 2009"
Does that count for posting before kickoff?

jajabinx124 23-01-2016 21:24
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by Chak (Post 1529159)
Wait...how...? :confused: Was this planned for 7 years? Is there a trick?
The upload date is just a trick. They actually took 7 years to build it ;)

Mark Holschuh 23-01-2016 21:36
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
So your strategy is to simply drive over the low bar? That's thinking outside the box!

Kevin Sevcik 23-01-2016 21:50
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by Mark Holschuh (Post 1529167)
So your strategy is to simply drive over the low bar? That's thinking outside the box!
Quote:
Originally Posted by G45
A ROBOT may not pass completely over the Low Bar.
Violation: FOUL and YELLOW CARD
I have to say, though, that a robot that could just drive over the Cheval de Frise without even caring would be pretty impressive.

Also, clearly the reason his "student" actors are so well versed in the robot is because the mentors spend at least 6 weeks coaching them on the ins and outs of the robot.

bEdhEd 23-01-2016 21:57
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by Kevin Sevcik (Post 1529172)
I have to say, though, that a robot that could just drive over the Cheval de Frise without even caring would be pretty impressive.

Also, clearly the reason his "student" actors are so well versed in the robot is because the mentors spend at least 6 weeks coaching them on the ins and outs of the robot.
I got a tip that the "actor theory" is just a cover up for the real reason their "students" know how the robot works. The mentors use polyjuice potion and they just find some random kids to transform into.

Totally seems legit. We're all just a bunch of hoodwinked muggles. Wave Robotics, eh? The only thing that team is waving is WANDS.

Kevin Sevcik 23-01-2016 22:05
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by bEdhEd (Post 1529173)
I got a tip that the "actor theory" is just a cover up for the real reason their "students" know how the robot works. The mentors use polyjuice potion and they just find some random kids to transform into.

Totally seems legit. We're all just a bunch of hoodwinked muggles. Wave Robotics, eh? The only thing that team is waving is WANDS.
Magic totally explains how they could fit that robot inside a 120" frame perimeter. And how they posted video of this year's robot back in 2009. And they used time turners to finish the robot so quickly and... it all fits man. That has to be it.

Richard Wallace 23-01-2016 22:19
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by Tyler Olds (Post 1528939)
Please let us know if you think this is legal and a good idea.
This is such a great idea that we would like to collaborate with you. You build us another chassis like this one -- even better, build four so we can keep practicing after bag day. We will build bumpers and LED strings for you.

As for legality, both teams will need to fundraise like crazy so we can send all of the LRIs, FTAs, Head Refs, and other knowledgeable volunteers on expense paid trips to an exotic location devoid of connectivity, so we can pass inspection and avoid penalties.

Sperkowsky 23-01-2016 22:48
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by Richard Wallace (Post 1529186)
This is such a great idea that we would like to collaborate with you. You build us another chassis like this one -- even better, build four so we can keep practicing after bag day. We will build bumpers and LED strings for you.

As for legality, both teams will need to fundraise like crazy so we can send all of the LRIs, FTAs, Head Refs, and other knowledgeable volunteers on expense paid trips to an exotic location devoid of connectivity, so we can pass inspection and avoid penalties.
I heard Sealand is accepting visitors. http://www.sealandgov.org/

Sunshine 24-01-2016 07:45
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
WAVE does it again by thinking outside the box. Please pick us in Milwaukee so we can share the ride to victory again. Our team requests that you keep you web page and build log up to date. It's hard for us to design and borrow your ideas when you are not current on your build log. Sending all your CAD files via email would be greatly appreciated. No rush on the files. We have been inspired by the "build a robot in 3 days" videos. We plan on starting in three weeks. We have plans for the kids until then. We're headed to China in pursuit of 8" pneumatic tires. We plan on buying the rest of the world's supply of tires and holding the tires at a secret location till the first week of competition. Please do not ruin our plans by persuading everyone to use Mecanums.

Foster 24-01-2016 12:11
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by ayeckley (Post 1529008)
Just think how much better it would work if the Mecanum wheels were installed correctly!
I thought that too, but then noticed the independent drive power, so they can spin one wheel at a time. So it's not important which way they are mounted

I_AM_Clayton 24-01-2016 13:51
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by barn34 (Post 1529139)
You guys are so scrub tier. 8 inch pneumatic tire swerve. That's what pros use, yo. ;) lol
Talk about burnin' rubber:yikes:.

Travis Hoffman 24-01-2016 15:13
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by Thad House (Post 1528949)
Nah. I think you need even bigger wheels. I think I might have read a rule you need 2 foot wheels. And some swerve mecanums would help too.
Psh. Only pneumatic swerve mecanum treads will do.

dmorewood 24-01-2016 15:21
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by barn34 (Post 1529139)
You guys are so scrub tier. 8 inch pneumatic tire swerve. That's what pros use, yo. ;) lol
When I actually just made one of those... Pictures to come tomorrow. You beat me to my official unveiling.:yikes:

SeeleySWS 24-01-2016 17:59
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
*disclaimer: not helping just a comment...

Wait you want to improve on last years performance? You were finalists on Einstein so I would be astounded to see you top that (but seriously good luck)

tindleroot 24-01-2016 19:38
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by SeeleySWS (Post 1529443)
*disclaimer: not helping just a comment...

Wait you want to improve on last years performance? You were finalists on Einstein so I would be astounded to see you top that (but seriously good luck)
I think you have them confused with someone else...

CalTran 24-01-2016 19:41
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by SeeleySWS (Post 1529443)
*disclaimer: not helping just a comment...

Wait you want to improve on last years performance? You were finalists on Einstein so I would be astounded to see you top that (but seriously good luck)
Quote:
Originally Posted by tindleroot (Post 1529502)
I think you have them confused with someone else...
No, they were definitely finalists. And even with being finalists on Einstein, they're probably itching to top that with taking home the big blue banner :P

tindleroot 24-01-2016 20:03
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by CalTran (Post 1529503)
No, they were definitely finalists.
:confused: I watched Einstein live last year, I think I know what I'm talking about.

Maybe this young-ish team has a shot at breaking on to Einstein this year with their 20" Mecanum wheels. Best of luck, Tyler, your design sounds impeccable. Can't believe I didn't think of it myself.

EricH 24-01-2016 20:09
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by tindleroot (Post 1529512)
:confused: I watched Einstein live last year, I think I know what I'm talking about.
Either you're playing along with the joke, or you don't recognize the 3-can auto grabber. Now, that could have been a lot better if they'd gone for a 7-can grab, but that's just me.



For those just joining us: Sometimes, the comedy posts get taken seriously, or maybe not, but it can be difficult to tell. I'm just rolling over here.

Sperkowsky 24-01-2016 20:56
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by EricH (Post 1529515)
Either you're playing along with the joke, or you don't recognize the 3-can auto grabber. Now, that could have been a lot better if they'd gone for a 7-can grab, but that's just me.



For those just joining us: Sometimes, the comedy posts get taken seriously, or maybe not, but it can be difficult to tell. I'm just rolling over here.
I really hope they are joking.

Sunshine 24-01-2016 21:01
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by Sperkowsky (Post 1529533)
I really hope they are joking.
What? What? Say it ain't true.

evanperryg 24-01-2016 21:36
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
A true champion in the making.

Quote:
Originally Posted by Thad House (Post 1528949)
some swerve mecanums would help too.
I think there should also be center wheels driven by ball differentials. Oh, and those should be on swerve modules too.

Quote:
Originally Posted by Sunshine (Post 1529267)
WAVE does it again by thinking outside the box. Please pick us in Milwaukee so we can share the ride to victory again.
Stop reminding me of wisconsin 2015 :( (context- we choked. hard.)

tindleroot 24-01-2016 22:54
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by Sperkowsky (Post 1529533)
I really hope they are joking.
I tried to make it obvious, but apparently I didn't try quite hard enough.

EricH 24-01-2016 22:57
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by tindleroot (Post 1529587)
I tried to make it obvious, but apparently I didn't try quite hard enough.
OK, so it's someone else not playing along.


Hey, uh, Wave? How 'bout you guys try using 8 of those wheels, mounted in pairs? That should really get you over the obstacles, and it's a proven system.

Tyler Olds 25-01-2016 00:23
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by EricH (Post 1529592)
OK, so it's someone else not playing along.


Hey, uh, Wave? How 'bout you guys try using 8 of those wheels, mounted in pairs? That should really get you over the obstacles, and it's a proven system.
Think of the extra torque and traction! Hopefully we will have something ready for premiere night!

cglrcng 25-01-2016 02:00
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by Tyler Olds (Post 1528969)
I will take your steak bet sir stating that there will not be any mecanum robots this year.

I prefer medium-rare
___________________________

I will also.

cglrcng 25-01-2016 02:15
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
You guys are flat out harsh (yes I was rolling and can barely read any longer through watery eyes)...I was only going to say...Man, that thing had legs and it walked, when it starred back in the day in Star Wars; The Return Of The Jedi!....And simply leave it at that.

I do want to see it on Rough Terrain though. (Especially with no Ewoks around).

cglrcng 25-01-2016 02:24
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by Sperkowsky (Post 1529005)
First off all your robot from last year sucked. You failed at making the most simple robot design ive ever seen. I'm surprised you passed inspection. But...

Makeynum wheels look like da purfect choice for dis game.

One cristizimsn those wheels are not big enough. To get over the obstacles you want at least 80" wheels. I Hurd u can buy them at your Lokal tractor store.

Great robot tho excited to see you guys. Mb you will get to world's. And one day if you keep tryin you can go to Einstein.
Yowza Sam...Carefool dere foo. Da Chezy Boyz are gonna get mihty upsets u steelin ' demz langwage and insertz it ina da twoknightz funny tread.

Tyler Olds 25-01-2016 02:31
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by cglrcng (Post 1529644)
Yowza Sam...Carefool dere foo. Da Chezy Boyz are gonna get mihty upsets u steelin ' demz langwage and insertz it ina da twoknightz funny tread.
Poofs were so 2014 #onthe118hypetrain!

logank013 25-01-2016 10:55
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
I looked up these wheels and the first listing has them for $5,000 a piece. 8 wheels for 2 bots makes $40,000... have fun with that budget... haha.

EricLeifermann 25-01-2016 11:00
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by logank013 (Post 1529744)
I looked up these wheels and the first listing has them for $5,000 a piece. 8 wheels for 2 bots makes $40,000... have fun with that budget... haha.
Or you make them in house like we did...

mrnoble 25-01-2016 11:20
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by EricLeifermann (Post 1529747)
Or you make them in house like we did...
Only bad teams make things themselfs. Don't you know you can just buy robot kits?? Top power teams don't waste time, they just spend $$$!

Sperkowsky 25-01-2016 11:30
Cots really stands for cheating organization together sucking.

Taylor 25-01-2016 11:36
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
All the top teams are driving their many-sided wheels directly from CIMs. All the power, all the speed, no drawbacks.
Also, I appreciate your forward thinking in that makenim rollers may be used as flotation devices.

Edit: Andy Baker called, looks like he has to do a complete redesign of his robot now that you've gone public with this.

EricLeifermann 25-01-2016 11:41
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by mrnoble (Post 1529760)
Only bad teams make things themselfs. Don't you know you can just buy robot kits?? Top power teams don't waste time, they just spend $$$!
Buy the kit but say you made it on the BOM. Much easier.

Daria Wing 25-01-2016 12:25
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
It might help if you put the robot on carpet as well, rather than tile. You might see different results in how it drives.

Tyler Olds 25-01-2016 13:05
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by Daria Wing (Post 1529803)
It might help if you put the robot on carpet as well, rather than tile. You might see different results in how it drives.
We feel that tile is a better simulation for the polycarbonate and that is more important than carpet. Is you disagree tell us so we may improve!

James Juncker 25-01-2016 13:27
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Hmm with the weight of those wheels you are going to nee to fool the scale somehow, I personally think you should install some Rotary Propellers to create lift for your robot. this would allow for your robot to not only come in under weight but also keep your weight and CoG in the middle of your robot at all times. I also think that you might want to look at the dimensions of your robot being 50x20 as it is over the perimeter limit on our robots.

If you were to install some 8 wheel pneumatic system with a gap in the center and dropping your chains down and then having a utility arm for dealing with obstacles and boulders I feel you woul find it more worth your time, also the layout for mechanum wheels should be like this for he rollers

\\\ ///

/// \\\

where the rollers all point towards the center of the robot. you may want to also make your connections water tight if you are planning on crossing the moat this year, I hear they are planning on filling it with dehydrated water for the competitions.

philso 25-01-2016 13:31
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Was your chassis milled out of a solid billet of 7071?

Sperkowsky 25-01-2016 20:43
Someone dotted me for my first comment calling me rude and not contributing to the discussion. I'm done....

IronicDeadBird 25-01-2016 20:47
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Oh I also heard if you made mecanum rollers out of regolith it works better.

Foster 25-01-2016 20:53
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by IronicDeadBird (Post 1530040)
Oh I also heard if you made mecanum rollers out of regolith it works better.
That sounds wicked cool. Any truth to the rumor if you did that and played on a regolith floor that it would actually hover?

IronicDeadBird 25-01-2016 20:54
Re: Need help! FRC2826 Wave Robotics 2016 Mecanum Drive!
 
Quote:
Originally Posted by Foster (Post 1530042)
That sounds wicked cool. Any truth to the rumor if you did that and played on a regolith floor that it would actually hover?
Eh waiting for Mythbusters to try it first.


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