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#1
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Re: pic: 3 wheel omni drive concept
The battery will be mounted at the top, correct? There can be no other way.
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#2
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Re: pic: 3 wheel omni drive concept
Quote:
![]() A damper to lessen the shock when falling over is a really good idea. I'm not sure where the best place to source parts for something like that would be. Some mountain bike spring/damper sets could be used, since they are lightweight by design. Maybe a simple low force gas strut could work, too. The offset bolt position is a neat idea. You could probably accomplish something similar using centered bolt positions but putting a spacer under the plywood when you hammer in the nuts in. Quote:
I make a point to ensure that the battery is always impossible to get to. It might be at the top of the robot, but you will need to unbolt a mechanism to change it. |
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#3
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Re: pic: 3 wheel omni drive concept
*cough* Why are you only posting screenshots? *cough*
Last edited by GUI : 28-11-2016 at 23:41. |
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#4
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Re: pic: 3 wheel omni drive concept
Ooh, check out Mr. Spoily McSpoilerpants over here.
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Re: pic: 3 wheel omni drive concept
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#6
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Re: pic: 3 wheel omni drive concept
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-Aren |
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#7
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Re: pic: 3 wheel omni drive concept
Would love to see the IQ version, any images of that around?
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#8
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Re: pic: 3 wheel omni drive concept
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#9
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Re: pic: 3 wheel omni drive concept
I always love the discussions these ideas can generate.
This might have done well in 2007, I remember 1501 building a 2 wheel robot that year. Add a few ramps and you've got a nice robot ![]() |
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#10
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Re: pic: 3 wheel omni drive concept
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I thought about several ways to implement this, and I think this is one of the better ways. Using a rear mountain bike shock on an additional joint on the self righting arm gives it damping ability, and is pretty adjustable. It looks like some air shocks have the ability to adjust the spring force (by varying the air pressure) and the damping coefficient, so it could likely be optimized to get rid of all of the bouncing after falling over. Pretty nifty! ![]() |
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#11
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Re: pic: 3 wheel omni drive concept
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#12
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Re: pic: 3 wheel omni drive concept
Quote:
Looking at the pics closely (particularly the one in post 15 of this thread), it appears that the shaft mounts through the tubing, not just the plywood. These could easily become "U" shafts, with the other arm pivoted on the inside of the opposite "upright". If I'm picturing this correctly, each would not interfere with the action of the other. This setup would also support some idle rollers if desired to do things like the low bar in 2016 (Of course, the main drive train would need to be modified to make contact with the carpet when somewhat on its side.) Last edited by GeeTwo : 29-11-2016 at 20:11. |
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#13
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Re: pic: 3 wheel omni drive concept
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#14
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Re: pic: 3 wheel omni drive concept
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#15
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Re: pic: 3 wheel omni drive concept
Do you intend to attempt to steer (make left and right turns) when its' in strafing mode?
I anticipate you could steer with a little input from the main two wheels, but I also think this would be really difficult to implement. |
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