Beyond Lewis and Clark Gap, Sol 4482- (September 2, 2016-) |
Beyond Lewis and Clark Gap, Sol 4482- (September 2, 2016-) |
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#301
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 4252 Joined: 17-January 05 Member No.: 152 ![]() |
Our first good look through the gap:
http://qt.exploratorium.edu/mars/opportuni...0M1.JPG?sol4482 |
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#302
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![]() Member ![]() ![]() ![]() Group: Admin Posts: 976 Joined: 29-September 06 From: Pasadena, CA - USA Member No.: 1200 ![]() |
I'm not sure this thread is the most appropriate one for this discussion, I will let the admins move or delete the offending post(s).
After the initial tests I'm not sure we know where the problem is, whether it is close to the motor, or the wheel. I would say that only after we have a reasonable idea we will come up with a solution (if it exists). All the suggestions so far are good but unfortunately we have pretty severe restrictions due to power and volatile storage (cold and hot temperature testing). We also have to get ready for Conjunction and Winter 8 while providing meaningful means to explore Perseverance Valley. I don't think anyone has kept track of the odometer on the testbeds but I would be surprised if it was a significant percentage of either Oppy or even Spirit. We typically use it to do small-motion tests (a few meters at most) and the tether is pretty short. The torque at the output of the gearbox is so strong that any attempt to force a stall by manually locking a wheel was fruitless. So on the one hand we would need to apply a very strong force to do anything significant, and on the other hand one could cause more damage. So if you won't see us try more crazy things, please understand that we rather drive a crippled vehicle than a lander. Not sure what flavor of lemonade we will make this time (maybe Orange Crush?), but we thought it was almost impossible to use the IDD after Joint 1 became unreliable. I'm sure we will learn how to drive this thing (again!). There's still some of us that remember how to drive a-la-Spirit. 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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