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Unread 17-11-2006, 08:26
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VEX Robotics Engineer
AKA: Arthur Dutra IV; NERD #18
FRC #0148 (Robowranglers)
Team Role: Engineer
 
Join Date: Mar 2005
Rookie Year: 2002
Location: Greenville, TX
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Re: pic: Vex Teaser: What's Art been up to lately?

Quote:
Originally Posted by jgraber
Nice work on the worm gear. Now that it is a few months later, how did it go?
Were you able to make a "South Pointing Chariot"?
Somewhat. I got about 70% done with it, but at that point the number of gears required to mechanically keep it "pointing South" was taking a toll on the motors and causing the robot to drift badly. This was just meant as a kind of interesting experiment in gearing, and nothing more really.
Quote:
Was it to make your holonomic drive "driver centric"?
That's still a work in progress; I have the a KoP gyro at my house, and I'm waiting on an order from Futaba for keyed connectors to make a jumper cable to go from FRC-style female leads on their sensors to the Vex-style male leads. Even once I get them, it probably wouldn't be until a vacation break, like Thanksgiving, when I would actually have enough time to start programming an absolute holonomic drive.
Quote:
You might also consider just doing the integration computationally, based on optical wheel encoders on the drive wheels or drag wheels.
I could of did that, but I just wanted to play around with differential gearing to create a complex mechanical-computer type of thing, just for fun. If I was serious about finding the exact location of the robot, I would have picked something much simpler.
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Art Dutra IV
Robotics Engineer, VEX Robotics, Inc., a subsidiary of Innovation First International (IFI)
Robowranglers Team 148 | GUS Robotics Team 228 (Alumni) | Rho Beta Epsilon (Alumni) | @arthurdutra

世上无难事,只怕有心人.
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