 | | Re: End effector that can "feel"
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(...) I was comparing sensor reading to sensor reading and your point compares sensor reading to motor on/off condition, which is even better. I have never considered your idea of motor stall. That is probably because I am notorious for high gear (...) (17 years ago, 19-Jan-08, to lugnet.technic, lugnet.robotics)
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| | Re: End effector that can "feel"
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(...) Nice. And I agree, nice-looking. I once Bricklinked some of those same "rubber skirt" pieces for this, but never did get them in an effecter that I liked (I was trying smaller at the time). Now I use the flexible 1x2 studless beams that first (...) (17 years ago, 19-Jan-08, to lugnet.technic, lugnet.robotics)
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| | End effector that can "feel"
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Hey everyone. I have built a realistic grasping end effecter that can feel when something in is its grasp (without touch sensors). I have attached a deconstructed version that I use. (URL) principle is pretty simple. As the end effecter closes and (...) (17 years ago, 18-Jan-08, to lugnet.technic, lugnet.robotics)
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| | RSRA-2008
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I have been working with a Home Schooler named Ian, to create a Robotic Arm. The Arm was created over a 4 session building period. I call it the RSRA-2008. (URL) The Arm consists of primarily black Technic construction. It utilizes x3 9v geared (...) (17 years ago, 18-Jan-08, to lugnet.technic, lugnet.robotics, FTX)
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| | Re: rcx + power functions ?
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(...) hi Chris, thanks for the link I didn't knew the Manas but it seems to be both a sender and a receiver. The PowerFunctions probably should be simpler because it is only ONE WAY communication... Lejos, which is the operating system i use to (...) (17 years ago, 15-Jan-08, to lugnet.robotics)
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| | Re: Steve makes it to my favourite website...
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(...) Congratulations to Steve (it's actually a really nice write-up), but I want to know who the *other* four guys are in the picture ;). I keep blogging this stuff and then forget to echo it to LUGNET occasionally. LEGO just released a nice video (...) (17 years ago, 14-Jan-08, to lugnet.robotics)
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| | Steve makes it to my favourite website...
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(URL) GeekDad hero Steve Hassenplug, who is perhaps the best LEGO robotics builder in the world, writes in with a guest post, reporting on the Mindstorms contest he hosted at his house near Chicago last week..." Steve, can you be my hero? :) Read (...) (17 years ago, 14-Jan-08, to lugnet.robotics)
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| | Re: rcx + power functions ?
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(...) This is an excellent question, and one I would love to see addressed. A long while ago, John Barnes, and many, many other people worked on and posted to lugnet about how they figured out how to control the Mannas with an RCX. Rob Doucettenet (...) (17 years ago, 14-Jan-08, to lugnet.robotics)
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| | Re: rcx + power functions ?
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(...) Right. I don't believe any of the systems (RC Train, PF, RCX) can communicate with each other. But the IR link is pretty smart, and can talk with any of them. Steve (17 years ago, 14-Jan-08, to lugnet.robotics)
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| | Re: rcx + power functions ?
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I don't know about the RCX, but that would certainly be an interesting idea! As for compatibility, what you say is not entirely true. According to the information provided on the HiTechnic website about their IR-Link sensor: Control LEGO R/C trains (...) (17 years ago, 13-Jan-08, to lugnet.robotics)
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| | rcx + power functions ?
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hello, The new Lego Power Functions system use infrared remote control. Has anyone tried to use a RCX to control it? It would be very nice to use the RCX to comunicate with several power functions IR receivers! I have read that the Power Functions (...) (17 years ago, 13-Jan-08, to lugnet.robotics)
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| | Re: CAN you believe it... The next Robotics game.
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(...) This is where it gets "complicated" We actually talked about allowing custom sensors, and we more or less all agreed, Until I asked for a "ruling" on what is defined as a sensor. Would a very powerful "rare earth" magnet, glued to a beam (...) (17 years ago, 13-Jan-08, to lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.org.ca.obb)
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| | Re: CAN you believe it... The next Robotics game.
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Jeff, Thank you for organizing this game. I look forward to the web page updates, and a more finalizing of the rules as discussed at dinner. I like that we all seemed to agree on using Dave's wall's as the boundary; and I like that we all have to (...) (17 years ago, 13-Jan-08, to lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.org.ca.obb)
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| | Re: CAN you believe it... The next Robotics game.
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(...) (URL) the rules don't allow custom sensors? Too bad! Philo (17 years ago, 12-Jan-08, to lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.org.ca.obb)
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| | Re: CAN you believe it... The next Robotics game.
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In lugnet.org.ca.rtltoronto, Jeff Van Winden wrote: <snip> (...) and... OMG!!!! I can build big 'bots again!!!! Yippee!!!!!!! (cause we're not putting much of a size/weight restriction out there, are we? :) if we are, I vote for 18 inches x 18 (...) (17 years ago, 11-Jan-08, to lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.org.ca.obb)
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| | Re: CAN you believe it... The next Robotics game.
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In lugnet.org.ca.rtltoronto, Jeff Van Winden wrote: <snip> (...) I still ahve the playfield walls that can be easily set up anywhere on top of a smooth floor. that'd give us an 8x8 arena with white walls--if the cans are darker, a light sensor may (...) (17 years ago, 11-Jan-08, to lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.org.ca.obb)
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| | Re: CAN you believe it... The next Robotics game.
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(...) The Focus is finding the Heavist can, I think part of the challenge will be finding the cans in general... I imagined a 3 meter by 3 meter (just for you Iian) Practically 10' x 10' for you imperial lovers out there. With maybe 20 - 30 Cans. (...) (17 years ago, 11-Jan-08, to lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.org.ca.obb)
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| | Re: CAN you believe it... The next Robotics game.
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Nice one Jeff- Question on the "can density", which will of course depend on the playfield size and the # cans on the field.. If the focus on finding cans, or finding the largest cans? If the later, I might suggest wrapping the bottom of each can (...) (17 years ago, 11-Jan-08, to lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.org.ca.obb)
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| | Re: CAN you believe it... The next Robotics game.
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(...) Forgot one thing... Time Frame for the Game: How does late March, Early April sound for everyone?? Jeff VW (17 years ago, 11-Jan-08, to lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.org.ca.obb)
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| | CAN you believe it... The next Robotics game.
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Ok, so I meant to do this months ago, and I have just been swamped.. So with out further ado, here are my thoughts on our next game: ***...***The Can Game***...*** Premise of the Game: Build a robot that can find the heaviest can in the play field. (...) (17 years ago, 11-Jan-08, to lugnet.org.ca.rtltoronto, lugnet.robotics, lugnet.org.ca.obb)
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