Getting Unstuck in West Valley |
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Getting Unstuck in West Valley |
 Jul 4 2009, 03:39 AM
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#601
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 Senior Member  Group: Members Posts: 3114 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15  |
Hay, Paolo! I saw and heard you today on NASA TV! Looked like you were having tons of fun dumping DE into the pit from the wheelbarrow and then raking it down...
You're a TV star, dude!  -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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Jul 4 2009, 06:31 AM
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#602
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 Member Group: Members Posts: 760 Joined: 29-September 06 From: Pasadena, CA - USA Member No.: 1200 |
I was not aware of that. What was I saying?
Paolo -------------------- Disclaimer: all opinions, ideas and information included here are my own,and should not be intended to represent opinion or policy of my employer.
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 Jul 4 2009, 11:59 AM
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#603
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 Member Group: Members Posts: 642 Joined: 23-December 05 From: Forest of Dean Member No.: 617 |
Lipreading, it looks like... "Ah, Mr Ellison, I've been expecting you. I see you have met my little... `pets'! "
-------------------- --
Viva software libre! |
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Jul 4 2009, 01:44 PM
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#604
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Junior Member Group: Members Posts: 90 Joined: 23-February 09 From: Edmonton, Alberta Member No.: 4611 |
sorry if this post is on topic
Looking at the set up in the TB, I'm wondering about how it will account for the RF given that it is on "solid" ground and apparently higher . I realize the rover suspension system could be compensating for the tilt but would there not be considerable downward force from front to back effectively driving the RR (or perhaps the LR diagonally) into the ground ? I'm guessing that no one wants to drop all 6 wheels into the mire but perhaps an attempt to drive the RF off it's "shelf" so that the forces are equal back to front? I'm not sure what that means when taken with the tilt of the whole thing. |
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Jul 4 2009, 02:08 PM
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#605
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Member Group: Members Posts: 760 Joined: 29-September 06 From: Pasadena, CA - USA Member No.: 1200 |
We will b placing the RF wheel on a piece of plywood simulating the shelf. We'll see how that works out.
Paolo -------------------- Disclaimer: all opinions, ideas and information included here are my own,and should not be intended to represent opinion or policy of my employer.
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Jul 4 2009, 03:41 PM
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#606
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 Member Group: Members Posts: 530 Joined: 21-March 06 From: Canada Member No.: 721 |
How about its own little private sandbox of hard packed dirt to give the wheel something to drag through? Or does that just needlessly complicate things?
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Jul 4 2009, 05:11 PM
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#607
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Senior Member Group: Members Posts: 3114 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
QUOTE (RoverDriver @ Jul 4 2009, 01:31 AM)  I was not aware of that. What was I saying? Paolo It was basically B-roll kind of stuff (the "interview" was of John Callas), but after dumping a bunch of DE into the pit, walking away, you were clearly heard saying "Whoof!"  (I'd have to run the recording again to quote anything else; there was one point while TeeBee was being driven into the pit that you were calling off numbers, for instance, and you were laughing with the woman who was helping fill the pit, clapping your gloves and then, despite the facemasks, coughing like crazy from the DE dust that flew.)The camera was right behind your head at one point -- I mean, I know scientists and engineers can get a little single-minded at times, but you have to have been aware of the cameras. Now you know what they do with the footage they're taking!  -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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Jul 4 2009, 07:10 PM
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#608
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Junior Member Group: Members Posts: 90 Joined: 23-February 09 From: Edmonton, Alberta Member No.: 4611 |
Good News everyone!
“And we're not stuck.....Spirit is mobility impaired.”  http://www.planetary.org/news/2009/0630_Ma...ate_Spirit.html |
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Jul 4 2009, 07:41 PM
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#609
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 Senior Member Group: Moderator Posts: 6474 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Great update as usual from TPS; nobody does it like A.J.S. Rayl!
That pic of pallets of soil component material made me tired just looking at it. For a mad scientist, Paolo sure does work hard.  Make those young pups do most of the heavy lifting, man; as one of my former USAF bosses put it, "Use them stripes, Sarge!"  Also, congrats to our esteemed Poet Dude Stu for inclusion of his Endeavour road sign for Oppy...really like that image! -------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Jul 4 2009, 07:54 PM
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#610
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Newbie Group: Members Posts: 9 Joined: 23-November 08 Member No.: 4493 |
QUOTE (RoverDriver @ Jul 4 2009, 07:31 AM) I was not aware of that. What was I saying? Paolo You can see this short video here : http://www.jpl.nasa.gov/video/index.cfm?id=851 ( JPL-"Free Spirit" website ) |
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Jul 4 2009, 11:12 PM
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#611
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Member Group: Members Posts: 760 Joined: 29-September 06 From: Pasadena, CA - USA Member No.: 1200 |
QUOTE (dvandorn @ Jul 4 2009, 09:11 AM) ... The camera was right behind your head at one point -- I mean, I know scientists and engineers can get a little single-minded at times, but you have to have been aware of the cameras. Now you know what they do with the footage they're taking! ... I was aware of the camera. They have been taping almost every barrel we dumped. I was curious of what exactly they selected. Paolo -------------------- Disclaimer: all opinions, ideas and information included here are my own,and should not be intended to represent opinion or policy of my employer.
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Jul 4 2009, 11:15 PM
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#612
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Member Group: Members Posts: 760 Joined: 29-September 06 From: Pasadena, CA - USA Member No.: 1200 |
QUOTE (nprev @ Jul 4 2009, 11:41 AM) ... That pic of pallets of soil component material made me tired just looking at it. For a mad scientist, Paolo sure does work hard. Make those young pups do most of the heavy lifting, man; as one of my former USAF bosses put it, "Use them stripes, Sarge!" ... No stripes here. But if I didn't have the help from all the "young pups" I would be still there huffing and puffing. Paolo -------------------- Disclaimer: all opinions, ideas and information included here are my own,and should not be intended to represent opinion or policy of my employer.
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Jul 6 2009, 04:43 PM
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#613
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Member Group: Members Posts: 173 Joined: 9-September 08 Member No.: 4334 |
Paolo mentioned on another thread that the rover's wheels can be commanded independently. Can they be set to just roll freely without being powered? If so, could the tractionless wheels be set to spin freely and only the wheels with traction be commanded on?
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Jul 6 2009, 05:18 PM
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#614
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Member Group: Members Posts: 251 Joined: 22-September 08 From: Spain Member No.: 4350 |
That was answered before. The wheels can't roll freely. The gear ratio is too high.
-------------------- "I can easily see still in my mind’s-eye the beautiful clusters of these berries as they appeared to me..., when I came upon an undiscovered bed of them... – the rich clusters drooping in the shade there and bluing all the ground" -- Thoreau
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Jul 6 2009, 07:55 PM
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#615
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Member Group: Members Posts: 760 Joined: 29-September 06 From: Pasadena, CA - USA Member No.: 1200 |
QUOTE (Vultur @ Jul 6 2009, 08:43 AM) Paolo mentioned on another thread that the rover's wheels can be commanded independently. Can they be set to just roll freely without being powered? If so, could the tractionless wheels be set to spin freely and only the wheels with traction be commanded on? Not to pick on you, but do you seriously believe that if we could actually do it we would not have done it already? The RF drive actuator was lost about 1200 sols ago. Someone in the MER team might have stumbled in this idea by then!  Also, you are suggesting to do it on the tractionless wheels, not on the RF, but since none of the other wheels have much traction, which wheel would do the driving?  Paolo -------------------- Disclaimer: all opinions, ideas and information included here are my own,and should not be intended to represent opinion or policy of my employer.
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Lo-Fi Version | Time is now: 20th May 2013 - 01:42 AM |
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