Arm and grabber design test video

[MrForbes]

I like it! is there any special coating/material on the bars that grip the tube? or does geometry make it work?

[synth3tk]

What's the song name? It sounds familiar, but I can't place my finger on it.

Also, that's a really unique concept. How did you guys come up with the idea?

[Daniel Krastev]

<R14> When a ROBOT is in its STARTING CONFIGURATION, no part of the ROBOT shall extend outside the vertical projection of the FRAME PERIMETER.

How are you going to configure your manipulator such that it doesn't extend past the front C-Channel before the start of the match?

That's a whole separate problem to work with...I think that rule ruins a lot of peoples' days

----------------------

Daniel Krastev
FRC 3017
Captain of Engineering

[s_forbes]

Originally Posted by synth3tk

Also, that's a really unique concept. How did you guys come up with the idea?

As I recall it sprouted from a discussion about last year's pinching mechanisms. We were talking about the benefits of a wide grabber and this concept emerged.

Originally Posted by Daniel Krastev

<R14> When a ROBOT is in its STARTING CONFIGURATION, no part of the ROBOT shall extend outside the vertical projection of the FRAME PERIMETER.

How are you going to configure your manipulator such that it doesn't extend past the front C-Channel before the start of the match?

That's a whole separate problem to work with...I think that rule ruins a lot of peoples' days

----------------------

Daniel Krastev
FRC 3017
Captain of Engineering

We think we have that part figured out as well. As a matter of fact, I think the manipulator we're considering at the moment would stay in the 60" cylinder with this gripper attached. Here's a hint as to the approach we're taking.

[Chris is me]

Originally Posted by s_forbes

We think we have that part figured out as well. As a matter of fact, I think the manipulator we're considering at the moment would stay in the 60" cylinder with this gripper attached. Here's a hint as to the approach we're taking.

That's 84 inches now....

[dtengineering]

If only there had been a three-year old sitting on the back of the robot until the last ten seconds of the test.....

The beauty of this post isn't just that it shows an idea for a gripper that might help inspire teams, but that it shows a great way of prototyping a concept. We've built all sorts of mock ups over the years, but never thought to do it this way!

Brilliant!

Jason

[James Tonthat]

Originally Posted by synth3tk

What's the song name? It sounds familiar, but I can't place my finger on it.

Also, that's a really unique concept. How did you guys come up with the idea?

I think it's a remix of Deadmau5 - Strobe, it doesn't sound exactly like the original.

[synth3tk]

Originally Posted by James Tonthat

I think it's a remix of Deadmau5 - Strobe, it doesn't sound exactly like the original.

Thanks, I thought that was them. I'll have to go through the discography later. (Yes, I really do love that genre! )

[Rangel(kf7fdb)]

Originally Posted by squirrel

I like it! is there any special coating/material on the bars that grip the tube? or does geometry make it work?

Right now there is currently double sided tape on the bars but we are planning on using this cell phone cover material that is sticky but not sticky. I am not really sure how to explain it.

[MrForbes]

Oh, like the stuff on the back of Steve's phone?

[Rangel(kf7fdb)]

Originally Posted by squirrel

Oh, like the stuff on the back of Steve's phone?

Yes, and the sticky and rough material on the phone is now called "stuff".

[Stephen of REX]

One time I was at a convenient store and there was a little display for a no slide cell phone pad. It was inclined at something like 45 degrees and you could rest a cell phone on it without it sliding off. Truly miracle material like this would make for a successful manipulator.

[SteveJanesch]

Thanks for posting, Fredi. I love your prototyping methods. Any thought to how to pick up the logo pieces in auton? We had a couple wrinkles to iron out in Rack 'N' Roll having to start inside the 28x38x60 envelope (with our gripper closed) and the game piece touching the robot - we had to push the tube away first, then drive forward, pick it up, then finally approach the rack. Or will you be able to hold the ubertube in the gripper at the start of auton?

- Steve

[MrForbes]

this stuff?

http://apps.facebook.com/ecwid-shop/store/43090479006

or if that doesn't show up where you are,

http://www.egrips.com/

[falconmaster]

Originally Posted by SteveJanesch

Thanks for posting, Fredi. I love your prototyping methods. Any thought to how to pick up the logo pieces in auton? We had a couple wrinkles to iron out in Rack 'N' Roll having to start inside the 28x38x60 envelope (with our gripper closed) and the game piece touching the robot - we had to push the tube away first, then drive forward, pick it up, then finally approach the rack. Or will you be able to hold the ubertube in the gripper at the start of auton?

- Steve

We might work on that soon....