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pic: Articulated 6WD prototype
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Re: pic: Articulated 6WD prototype
How did this end up upside-down?
Edit: Thank you |
Re: pic: Articulated 6WD prototype
That looks cool. Where did you guys find this idea, or did you design it yourselves? I was trying to figure out a way to do something similar.
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Re: pic: Articulated 6WD prototype
I can't tell for sure, but as the center wheel goes up, do the outside wheels go down? If so, wouldn't that make the BUMPER ZONE move?
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Re: pic: Articulated 6WD prototype
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Re: pic: Articulated 6WD prototype
we found that just raising the chassis with a regular 4 wheel drive works just fine. Also the bumper rules are a bit different this year, I don't remember the exact height, but it is drastically larger than the 2inch restriction from previous years.
So although I personally love the 6 wheel drive configuration, it just seems more practical to save weight and work with 4 wheels. But don't let that stop you from trying it! |
Re: pic: Articulated 6WD prototype
Driving over the bump looks easiest with a robot that has an open area in the middle of the drive train (as viewed from the side). That implies that 4wd or 8wd might be the way to go. 6wd seems to add a lot of complication to try to overcome the falling problem as the robot crests the bump.
And if your center wheels can lift up to follow the bump, the can probably also lift up in normal driving? so you really have a long wheelbase 4wd robot anyways. |
Re: pic: Articulated 6WD prototype
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Re: pic: Articulated 6WD prototype
<r07> The BUMPERS must be located entirely within the BUMPER ZONE when the ROBOT is standing normally on a flat floor,
If you read the last four words in this part of the rule the measurment is when the robot is on a flat floor. This most likely will be done durring inspection on a flat floor. All the robots bumpers will change there hieght durring transition through the bump, thier is no way around it. It also say's you can not articulate the bumpers from the frame but it dose not say anything about articulating the drive wheels. |
Re: pic: Articulated 6WD prototype
I like it! I wish our team had decided to do 6 wheel drive... instead we are using a swerve drive which looks promising but very time consuming to build and program.
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Cass |
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Re: pic: Articulated 6WD prototype
Video of our test robot with six wheel drive suspension going up a ramp.
http://www.youtube.com/watch?v=xby0S...layer_embedded Video of our test robot going up a 45 degree ramp. http://www.youtube.com/watch?v=jQMcw4QNCLI Link to our web site with pictures of our development. http://www.team1322.org/ideas.htm |
Re: pic: Articulated 6WD prototype
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Re: pic: Articulated 6WD prototype
We are using a similar idea, we are doing a modified version of the rocker-bogie system. It is similar to what the rovers on mars use. The max angle it can handle is 45degrees and the playing field happens to be a 45degree ramp.
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