hydro-one wrote:hmm electric lawnmowing service with robotic electric mower. could be the business im lookingfor !!!!!!
bigmoose wrote:Since you mention robotics... The center of excellence at the University level is Carnegie Mellon University in Pittsburgh, PA. Their Robotics Institute headed by Red Whittaker is a leader in autonomous robotic motion as proven by their track record in DARPA's Grand Challenge. They have published many papers on the subject of obstacle avoidance and autonomous operation. They have done a couple of designs for autonomous lunar rovers...
Home web site: http://www.ri.cmu.edu/publication_sub.html?menu_id=265 might be of some help.
bigmoose wrote:kfong, you prove again that Endless Sphere is populated with the most talented and experienced people in the business! Makes one want to stop posting. We were involved with Red a bit a few years back. My past employer provided Red with a Radioisotope Stirling Power Simulator for one of his lunar rover platforms, of which parts were machined in my basement to make schedule...
John in CR wrote:Thanks BigMoose, what a way to end the week. I don't think I've laughed that hard yet this year, since it caught me just right.
AussieJester wrote:John in CR wrote:Thanks BigMoose, what a way to end the week. I don't think I've laughed that hard yet this year, since it caught me just right.
BWAHAHAHA same he even looked a lil like Methy...i gotta stop reading ES when im having breakfast, makes
a mess of my keyboard...
jag wrote:I'd be excited to hear about your progress. Some observations:
If you have a differential drive with two separate motors the mower might not go straight for very long before veering unless you design some stability into the system. Front wheel (differential) drive and a third RC controlled steering wheel in the back might do it. (so you can seer with the rear wheel on straights, yet still turn on a penny).
An alternative that is more suited to as rectangular yard, than I presume your L-shaped corner lot would be a wire gantry. There is a way of making a two motor, constant length wire drive mechanism XY table (this was patented about 100 years ago). I forgot the details, but one of the robotics profs here is generalizing it to 3DOF so I could find out.
dumbass wrote:I like this one. It looks like someting I would have built when I was a teenager trying to get out of cutting the grass. http://video.google.com/videoplay?docid ... 853601428#
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