Team 3675's 3 level climber!

[Russel3675]

What does the Delphi community think of our climbing/scoring mechanism?







We can climb all three levels and hold our robot on the top. In addition, we also score in the lowest goal. Our idea is that we can score very consistently and frequently, and then climb for big points!

Our climbing is achieved by 4 2in OD Bimba cylinders. Two are attached to the frame of the robot and move the mechanism across two slides. The pitch to climb is then chain driven with torque limiters to make sure we don't burn out our motors or damage the mechanism. A video is coming soon! Until then, tell us what you think!

[dodar]

Video or it doesnt exist.

[falconmaster]

Originally Posted by Russel3675

What does the Delphi community think of our climbing/scoring mechanism?
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We can climb all three levels and hold our robot on the top. In addition, we also score in the lowest goal. Our idea is that we can score very consistently and frequently, and then climb for big points!

Our climbing is achieved by 4 2in o.d. Bimba cylinders. Two are attached to the frame of the robot and move the mechanism across two slides. the angle to climb in chain driven with torque limiters to make sure we don't burn out our motors. Tell me what you think!

Do you have video, hard to tell from pic... Thanks

[capnslow]

2nd that but it looks good.

[CalTran]

What stroke are your cylinders? 2inchers use up a LOT of air...

[capnslow]

You also might want to take a look at this. I don't know if you've heard about it but I'd hate for someone to get hurt.
http://www.chiefdelphi.com/forums/sh...ight=30+points

[capnslow]

You might want to take a look at this as well. I don't know if you've seen it bug I'd hate for anyone to get hurt.

http://www.chiefdelphi.com/forums/sh...ight=30+points

[mc117]

How do you keep the robot from swinging and missing the next bar?

[Orion.DeYoe]

Wow. There is something.
My team considered something similar to this design.
A 3 pt climber plus a dumper for the 1 pt goal is a valuable member of an alliance (if they're not the captain). Good luck!

[Russel3675]

Now that I'm on a computer, I can be a little more thorough. I will do my best to get a video up soon. We are working out a few programming bugs to smooth out the operation.

Ideally, we will be around 50-55psi of working pressure to climb. With 6 reserviors and a compressor, we have enough capacity to climb in around 30-45 seconds, depending on final weight. Each 2in OD Cylinder is an 18in stroke. Swinging is prevented from the hook assembly along with the rotation of the cylinder. I think a CAD file may make things a little more clear. We used a free student trial of SolidEdge ST5.

General View:


Top View:


Reaching/Rotational Mechanism:


Mounting Plate:


The Claaaawww. (Our team name is the Eagletrons, so we thought to make them eagle talons to add a little character):


Capnslow, we actually made that article a point when we assembled the reservoir system. I thank you for that, it very well kept our team safe, as well as many others I'm sure.

Hopefully this all adds a little clarity to my initial post. If anyone has any questions shy of video or constructive criticism, please feel free to post up!

[Russel3675]

Oops, forgot to add, the CAD shows window motors in use with a belt driven sprocket, but they were too weak with the weight and leverage from the 2in OD cylinder. We have since switched to a PG-71 motor and gearbox along with what I believe to be a K75 torque limiter and chain drive. Just to be clear!

[CalTran]

You may want to round the edges of your claw from talons to more...calm fingers. Wouldnt want to get called on it in inspection and have to file off the edge by hand in the pits!

[JosephC]

Wow guys that looks awesome! I cant wait for the video of this thing is action with bumped on!

The hooks appear to be parallel to the ground to me, are they actually perpendicular to the ground or do actuate somehow?

[Russel3675]

Originally Posted by JosephC

Wow guys that looks awesome! I cant wait for the video of this thing in action with bumpers on!

The hooks appear to be parallel to the ground to me, are they actually perpendicular to the ground or do actuate somehow?

The hooks remain oriented exactly as shown. Is there a benefit to perpendicular that I am missing?

[PVCpirate]

I'm confused as to how you reach up for the bars if the cylinders actuate parallel to the ground.