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This is not a teaser, or even something that will necessarily built I just saw that with the new planetary trannies and AM kit wheels that a crab drive might be easy this year. This is by no means a module that will be build in it's present form, as it is just a quick idea.....I just wanted to share.
Parts:
BaneBots kit tranny
AndyMark kit wheel (with tread lathed off)
AndyMark Universal hubs
Discussion
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09-01-2007 21:59
eshteyn
Re: pic: Banebots- AndyMark crab module
That design looks great. One big problem though. When you turn the wheel you motor will be beyond the limits of the robot frame. It could get damaged pretty badly or get stuck under another robot.
09-01-2007 22:18
Waynep
Re: pic: Banebots- AndyMark crab module
Eugene, actually you don't. All you need for a swerve drive setup is 135 degrees of travel which can be contained within the bot. Motor reversing and programming gives you everything else.
Greg its a nice combination, but here are my concerns:
Clearance within the robot is still a problem you'd have to design for a very open robot near the pods. More importantly, the banebots motor and trans seems to be a lot of extra weight hanging off to one side to be trying to swerve. Once you are in motion its not so bad but, but you still need to have a pretty hefty motor, reduction, as well as support structure for all of this to happen.
-wayne
09-01-2007 22:20
Billfred
Re: pic: Banebots- AndyMark crab module
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Originally Posted by eshteyn
That design looks great. One big problem though. When you turn the wheel you motor will be beyond the limits of the robot frame. It could get damaged pretty badly or get stuck under another robot.
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09-01-2007 22:37
Greg Needel
Re: pic: Banebots- AndyMark crab module
this was only designed to go 90 degrees....because maybe that is all we wanted 
09-01-2007 22:38
eshteyn
Re: pic: Banebots- AndyMark crab module
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Originally Posted by Greg Needel
this was only designed to go 90 degrees....because maybe that is all we wanted
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09-01-2007 22:40
DanDon
Re: pic: Banebots- AndyMark crab module
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Originally Posted by eshteyn
In that case you should have no problem with damaging it, so go for it
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| This is not a teaser, or even something that will necessarily built I just saw that with the new planetary trannies and AM kit wheels that a crab drive might be easy this year. This is by no means a module that will be build in it's present form, as it is just a quick idea.....I just wanted to share. |
09-01-2007 23:40
Jonathan Norris
Re: pic: Banebots- AndyMark crab module
It would have a much smaller footprint if you put the gearbox and CIM motor above the wheel and sprocketed it down to the wheel.
10-01-2007 13:35
Brandon Holley
Re: pic: Banebots- AndyMark crab module
I'd suck it up and bevel gear it...then we'd be talkin
10-01-2007 21:24
Skute327
Re: pic: Banebots- AndyMark crab module
I had a similar idea simply to use the motors and direct drive to the wheels. I wasn't going to pivot them. Does anyone know if the Banebots gearbox is strong enough to support a 120 # robot? (with pillow blocks of course)
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