 | | Mitchel Resnick & NXT were here
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Finally got a chance to have a closeup look at the much talked about Mindstorms NXT when Prof Mitchel Resnick (of MIT Media Lab) was here for the LEGO MINDSTORMS Education (LME) NXT Regional Pre-Launch at the Singapore Science Centre. (URL) (...) (19 years ago, 6-Jun-06, to lugnet.robotics, lugnet.loc.sg)
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| | Re: Newbie needs Help
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(...) Real tanks and dozers have lots of little sprung wheels resting along the bottom edge of the track - adding those would give you back that down-force you miss from the center of the track being unsupported. Tank tracks are a subtle thing in (...) (19 years ago, 5-Jun-06, to lugnet.robotics)
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| | Re: Newbie needs Help
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Steve Hassenplug wrote: > You can (A) add more weight (B) make it go faster, or (C) add more traction. > Considering you're already at the weight limit (out of parts), option (A) is out. > > Making it go faster is a reasonable option. Geared down (...) (19 years ago, 5-Jun-06, to lugnet.robotics)
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| | Re: Newbie needs Help
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(...) Well, I'm not exactly an expert - but it seems to me (if the rules allow it) that attaching the tow rope above the center of gravity of the robot and putting the drive wheels at the end nearest your opponent would result in the force of your (...) (19 years ago, 5-Jun-06, to lugnet.robotics)
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| | RCX and Basic stamp
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can anyone help me. im trying to communicate a basic stamp 2 microcontroller with the RCX 2 via infrared. i dont get the protocol it works on can someone help. -- View this message in context: (URL) from the LEGO Robotics forum at Nabble.com. (19 years ago, 5-Jun-06, to lugnet.robotics)
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| | RE: Newbie needs Help
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(...) Yes, you would think so. But, they don't. Tank Treads look like they have a big "contact-patch" with the ground. In reality, each one only applies pressure in two points (at each wheel), and even those are not in contact with the ground all (...) (19 years ago, 5-Jun-06, to lugnet.robotics)
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| | RE: Newbie needs Help
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"BTW, don't use tank treads." How come? Gut feeling is that it would provide more traction? -----Original Message----- From: news-gateway@lugnet.com [mailto:news-gateway...ugnet.com] On Behalf Of Steve Hassenplug Sent: Monday, June 05, 2006 2:36 PM (...) (19 years ago, 5-Jun-06, to lugnet.robotics)
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| | Re: Newbie needs Help
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(...) I suspect you're far from breaking gears or axles. However, keep in mind it is always possible (so don't blame me if it happens) :) Keep the distance between gears & wheels small, so the axles don't twist. Sounds like you still have more (...) (19 years ago, 5-Jun-06, to lugnet.robotics)
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| | Re: Newbie needs Help
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(...) Steve, Thanks for the tips and good wishes. Currently this is what we have: - 3 wheels driven by 3 motors. Each geared down at 15:1 - the wheels do keep spinning when the robot is held in place - very generous size limit, a 250mm cube - so no (...) (19 years ago, 5-Jun-06, to lugnet.robotics)
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| | Re: Newbie needs Help
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(...) Raj One major key to making a good Tug-of-War robot will be making it go the "right" speed. If it goes too fast, some of the "power" will be wasted on speed. If it goes too slow, it won't use all the power it has. To change the speed of the (...) (19 years ago, 5-Jun-06, to lugnet.robotics)
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| | Newbie needs Help
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Hi, I am a newbie and would appreciate some help. My 11 year old has just joined his school robotics club. He will be using set 9794 (Mindstorms for School with ROBOLAB 2.5.4) and has to prepare a robot for a Tug-of-War competition (based on FLL (...) (19 years ago, 5-Jun-06, to lugnet.robotics, lugnet.robotics.edu, lugnet.robotics.rcx.robolab)
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| | Re: BricxCC & Cybermaster
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Thanks for the quick reply. I've been scouring the internet for pages about Cybermaster, but most of them only exist as dead links in listings. Does anyone know of any 'must-see' CM pages out there? linmix (...) (19 years ago, 4-Jun-06, to lugnet.robotics)
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| | Re: BricxCC & Cybermaster
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(...) Get the test release of BricxCC which fixes a problem that I introduced in build 3.3.7.10 which breaks serial tower (both IR and RF) communications. (URL) Hansen (19 years ago, 4-Jun-06, to lugnet.robotics)
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| | BricxCC & Cybermaster
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I hope nobody objects to my bringing this up, but not only is this evidently lego robotics related, it's also (very slightly) rcx related. I'd like to try establishing some form of communication between my Cybermaster and RCX units and my first step (...) (19 years ago, 3-Jun-06, to lugnet.robotics)
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| | BricxCC & Cybermaster
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I hope nobody objects to my bringing this up, but not only is this evidently lego robotics related, it's also (very slightly) rcx related. I'd like to try establishing some form of communication between my Cybermaster and RCX units and my first step (...) (19 years ago, 3-Jun-06, to lugnet.robotics)
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| | Re: Problem with RCX
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(...) I wanted to let everyone know that I was able to fix my RCX and tell you what was wrong with it. There was a bridge between the positive terminal pad and a very thin portion of the ground plane along the outer edge of the PCB. Apparently the (...) (19 years ago, 2-Jun-06, to lugnet.robotics)
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| | a gbc module
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Photos of a foosball table GBC module. A deep link showing the table, with 6 balls in play: (URL) balls come in from the top of the picture (side of the table) and exit at the goals. By speeding up or slowing down the rotation rate, I can let balls (...) (19 years ago, 2-Jun-06, to lugnet.robotics)
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| | Camera vs. ROBOLAB, Round 1
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So here I was, minding my own business and enjoying the last day of my first week of summer vacation, when suddenly an idea popped into my head. This idea was to use my Vision Command camera in conjunction with ROBOLAB 2.5.4, because I had seen (...) (19 years ago, 1-Jun-06, to lugnet.robotics)
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| | Administrivia - duplicate postings
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Hi. Sorry to have forwarded those half-dozen duplicate postings. Somebody is re-injecting email, and I mistakenly allowed them onto the list. (19 years ago, 1-Jun-06, to lugnet.robotics)
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| | Re: Game Boy + LEGO = Robot
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(...) Thanks Bernard and Philo, The interesting thing is how they are priced. I would strongly suspect that the ones on the kornylak site are cheaper, and can be builk purchased, which would be a worthwhile advantage over the Charmed Labs ones, when (...) (19 years ago, 30-May-06, to lugnet.robotics)
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