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-   -   CEPHAS 1860 - 10 POINTS/30 POINTS CLIMB (http://www.chiefdelphi.com/forums/showthread.php?t=112518)

Nicolas BR 01-02-2013 12:17

CEPHAS 1860 - 10 POINTS/30 POINTS CLIMB
 
This video shows only the climb of the first level, however for the other levels the mechanism is the same, let's make the climb of 30 points, we tested the concept, and proved that it really :)


http://www.youtube.com/watch?v=ajAWPyx8dCQ

Grim Tuesday 01-02-2013 13:46

Re: CEPHAS 1860 - 10 POINTS/30 POINTS CLIMB
 
How do you tip in the right direction to climb another level if the actuation bar is higher than 30" and thus you can't be 'inside' the tower?

mikegrundvig 01-02-2013 13:49

Re: CEPHAS 1860 - 10 POINTS/30 POINTS CLIMB
 
Quote:

Originally Posted by Grim Tuesday (Post 1225930)
How do you tip in the right direction to climb another level if the actuation bar is higher than 30" and thus you can't be 'inside' the tower?

I'd like to know this as well.

-Mike

Nicolas BR 01-02-2013 13:57

Re: CEPHAS 1860 - 10 POINTS/30 POINTS CLIMB
 
Quote:

Originally Posted by Grim Tuesday (Post 1225930)
How do you tip in the right direction to climb another level if the actuation bar is higher than 30" and thus you can't be 'inside' the tower?


Yes, but our mechanism was made to climb the outside of the pyramid, so we do not need nor want to enter the pyramid....

CalTran 01-02-2013 14:06

Re: CEPHAS 1860 - 10 POINTS/30 POINTS CLIMB
 
He meant the arm would not be angled to within the pyramid, thus your next "claw" would be grabbing air.

Nicolas BR 01-02-2013 14:18

Re: CEPHAS 1860 - 10 POINTS/30 POINTS CLIMB
 
Quote:

Originally Posted by CalTran (Post 1225955)
He meant the arm would not be angled to within the pyramid, thus your next "claw" would be grabbing air.



Yes it would take the air, but the other two arms, will be articulated until they are parallel with the bars 60'' and 90''

CalTran 01-02-2013 14:23

Re: CEPHAS 1860 - 10 POINTS/30 POINTS CLIMB
 
Quote:

Originally Posted by Nicolas BR (Post 1225962)
Yes it would take the air, but the other two arms, will be articulated until they are parallel with the bars 60'' and 90''

I assume you have an articulation method not affected by the pendulum motion of the robot?

sloteera 01-02-2013 14:30

Re: CEPHAS 1860 - 10 POINTS/30 POINTS CLIMB
 
we'll move away from the bars with an articuladed and angulated device (in order to keep the robot most parallel possible to the ground).

So two similar arms (some little differences) could be grab another bars.

Maybe we need to change the position of the robot's mass center, but we haven't sure yet.

Nicolas BR 01-02-2013 14:31

Re: CEPHAS 1860 - 10 POINTS/30 POINTS CLIMB
 
Quote:

Originally Posted by CalTran (Post 1225965)
I assume you have an articulation method not affected by the pendulum motion of the robot?



yes, independently of the pendulum robot our method is not affected. We are centralizing all the weight is in the robot, so that the least possible angule ...

coldfusion1279 01-02-2013 14:36

Re: CEPHAS 1860 - 10 POINTS/30 POINTS CLIMB
 
Using the center of gravity to your advantage for a hang like this would be quite smart. Looks like you know at roughly what angle the robot comes to rest. At the very least, you are all set for 10 pts.

mikegrundvig 01-02-2013 14:49

Re: CEPHAS 1860 - 10 POINTS/30 POINTS CLIMB
 
Sadly, this is quite far from being a 30 pt climber still. Your winch works great, and using bars to force the robot into the right plane for the next grab is a start, but you also have to have a second clamp hold you steady while you grab the next bar, rinse and repeat for the third bar. It's not nearly as simple as what I stated either, you have to overcome to offset the bumpers put on you as well.

-Mike

sloteera 01-02-2013 14:51

Re: CEPHAS 1860 - 10 POINTS/30 POINTS CLIMB
 
Quote:

Originally Posted by mikegrundvig (Post 1225983)
Sadly, this is quite far from being a 30 pt climber still. Your winch works great, and using bars to force the robot into the right plane for the next grab is a start, but you also have to have a second clamp hold you steady while you grab the next bar, rinse and repeat for the third bar. It's not nearly as simple as what I stated either, you have to overcome to offset the bumpers put on you as well.

-Mike

Sure, you right! We need to mount everything first. Then we can say that we have a 30 point's 'climber' robot.

Alex.q 01-02-2013 22:50

Re: CEPHAS 1860 - 10 POINTS/30 POINTS CLIMB
 
I dont think it is as complicated as everyone else is saying. They can take the same mechanism they have and duplicate it, then mount it so they can pivot it forward to engage the next bar.

JB987 01-02-2013 22:56

Re: CEPHAS 1860 - 10 POINTS/30 POINTS CLIMB
 
What happens when the power to the field/robots is cut?

Johnbot 01-02-2013 23:21

Re: CEPHAS 1860 - 10 POINTS/30 POINTS CLIMB
 
Quote:

Originally Posted by JB987 (Post 1226211)
What happens when the power to the field/robots is cut?

Well, considering they are just testing by wiring the motors directly to the battery, when power is cut their design will handle just like it did at the end of the video when the wires were removed from the battery: the robot stayed in place.
~~~~~~
Anyways, this seems like an interesting way to go. If you have another hook off center, will the robot tip, or is the one hook enough to hold it without the robot falling off?


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