 | | Re: program wont stop running
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(...) The program has stopped running. It stops as soon as it starts... You just need to STOP the motor when your done. Otherwise it just stays on... Dean -- Coin-Op's For Sale!: (URL) Lego Workshop: (URL) Lego Club: (URL) (24 years ago, 7-Apr-01, to lugnet.robotics, lugnet.robotics.rcx.nqc)
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| | Re: More juice out of the standard motors.
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Yes, but they used more prats then the RIS contains :/ They used two battery boxes to gain 18V using this coupling: (URL) had a motorcontrolled polarity switch to walk around the voltage limits in the RCX. /Tobbe (...) (24 years ago, 7-Apr-01, to lugnet.robotics)
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| | Re: droid kit at compusa $20
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In article <3ACE317E.8B5FB2A7@home.com>, Jason Stern <2busytobe@home.com> writes (...) Where's 'Compusa'?? (24 years ago, 7-Apr-01, to lugnet.robotics)
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| | Re: droid kit at compusa $20
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(...) The correct capitalization speaks for itself: CompUSA. (24 years ago, 7-Apr-01, to lugnet.robotics)
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| | Length of Diagonal Spreadsheet
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Hi Everyone, I just created a spreadsheet that I think will be useful to many of us. It shows the lengths of possible diagonals in terms of LEGO Units. I created it because I often find myself searching by trial and error for possible diagonal (...) (24 years ago, 7-Apr-01, to lugnet.org.us.smart, lugnet.robotics, lugnet.technic)
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| | plans for dual differential gear train?
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Can anyone point me to a set of plans for a "dual differential" gear train made with Technic parts that allows one LEGO motor to control driving straight and a second motor to control turning? (24 years ago, 7-Apr-01, to lugnet.robotics)
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| | Re: plans for dual differential gear train?
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(...) Hi Robbie, i guess that's what you're looking for : (URL) (24 years ago, 7-Apr-01, to lugnet.robotics)
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| | Re: plans for dual differential gear train?
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(...) Try this link... (URL) setup you mean is usually termed either the adder/subtractor or the differential transmission. Follow links 101 and 102 on the above page. --Ian (24 years ago, 7-Apr-01, to lugnet.robotics)
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| | Re: plans for dual differential gear train?
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robbie berg <rberg@wellesley.edu> wrote in message news:GBFu8B.HLt@lugnet.com... (...) driving (...) I've seen a few examples of this, but they all use two differentials. I've made one using just one differential, but is there a difference? (...) (24 years ago, 7-Apr-01, to lugnet.robotics)
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| | Re: Length of Diagonal Spreadsheet
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"Gustav Jansson" <GJansson@aol.com> wrote in message news:GBFto5.GFC@lugnet.com... <snip>> Please, if anyone has the means to create Adobe Acrobat .pdf files, please (...) </snip> I'll give it a go when I'm back in work on tuesday..... Duq (24 years ago, 7-Apr-01, to lugnet.org.us.smart, lugnet.robotics, lugnet.technic)
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| | 2.0 Firmware
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I recently unpacked my Minsdstorm components after almost 1 year of non use and downloaded the latest NQC system only to find that for some of the new features it requires 2.0 firmware. I have two RCX's each of which says 1.0 on the outside and NQC (...) (24 years ago, 7-Apr-01, to lugnet.robotics)
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| | Re: 2.0 Firmware
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You can download the 2.0 firmware here: (URL) Regards Micah J. Mabelitini - LUGNET #918 The University of Kentucky (...) (24 years ago, 8-Apr-01, to lugnet.robotics)
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| | Re: program wont stop running
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(...) If the person stops running, then that means the program has stopped. The "Run" button stops a program and turns off the motors. However, when a program finished normally (with nothing more to do), the motors are left in whatever state the (...) (24 years ago, 8-Apr-01, to lugnet.robotics, lugnet.robotics.rcx.nqc)
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| | Re: Length of Diagonal Spreadsheet
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(...) For gear spacings, you might try: (URL) My testing shows that errors as great as 5% are usually no problem for (...) That *can't* be right. The tolerable error for two 40t gears is no different from the error for two 8t gears - so it's (...) (24 years ago, 8-Apr-01, to lugnet.robotics)
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| | Re: Length of Diagonal Spreadsheet
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(...) I'm assuming he's talking about the 12T double bevel gear. Three sets that I know of that have them are the DDK, the Technic 8448 Super Street Sensation and the Technic 8008 Stormtrooper. They have a standard 3L mesh spacing when used with a (...) (24 years ago, 8-Apr-01, to lugnet.robotics)
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| | Re: Length of Diagonal Spreadsheet
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(...) Er oops :) that's a 2L spacing, same as 24T to 8T or 16T to 16T. (24 years ago, 8-Apr-01, to lugnet.robotics)
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| | Re: A couple of questions
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(...) Only by the vocal majority, I think. There has been a recent thread about a sub-group (cult?) of "grinders". I say the end justifies the means here. You might look into FischerTechnik (my spelling may be off). Someone on this newsgroup did (...) (24 years ago, 8-Apr-01, to lugnet.robotics)
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| | Re: Length of Diagonal Spreadsheet
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(...) ---...--- snip ---...--- (...) Gus I can't download the sheet nor can I open it online. If you can email it to me I can convert and return the pdf via email, providing the document isn't too large for your mail box. Dave (24 years ago, 7-Apr-01, to lugnet.robotics)
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| | Re: Length of Diagonal Spreadsheet
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(...) Thanks for the link to your gear spacing site. That is sort of what I was looking for though in my chart I aimed at being more general then just a list of workable gear spacing. My diagonal measurements can also be used to find workable beam (...) (24 years ago, 8-Apr-01, to lugnet.robotics)
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| | Re: Length of Diagonal Spreadsheet (Now in PDF format!)
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Thank you everyone who either offered to make a PDF file or went ahead and made one and mailed it to me. Here is the PDF version of the spreadsheet. (URL) suggest that you print it out and try out some of the diagonals. For the new 12 and 20 tooth (...) (24 years ago, 8-Apr-01, to lugnet.org.us.smart, lugnet.robotics, lugnet.technic)
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| | Re: Length of Diagonal Spreadsheet
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(...) Yes - I have such a table too - but I generated it with a program that automatically rejects unusable combinations to generate a small list of useful diagonals. (...) Ah! That makes more sense. So you mean errors of 0.05 studs - that's a bit (...) (24 years ago, 8-Apr-01, to lugnet.robotics)
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| | Chat server is up! (was: Need for chat server?)
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Hello all, I finally found a free moment to set up the chat server for all of us lego and robotics maniacs. My company is going through a merger with another .com so things are a bit busy right now ... I haven't had much time to mess with my lego (...) (24 years ago, 8-Apr-01, to lugnet.robotics)
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| | Re: calculating sensor resistance (Ohm's Law)
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Michael, As usual, you are correct. Thanks for pointing out my error. - pete. (...) Techno-stuff Robotics (URL) for FUN ! (24 years ago, 8-Apr-01, to lugnet.robotics)
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| | Re: New Outdoor Robot Photos
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Nice images, they should go nicely with your excellent site. I am curious as to the ground that is in those images. Looks like broken gravel with grass or some other green growing through. I am wondering if this is your back yard, or drive way, or (...) (24 years ago, 8-Apr-01, to lugnet.robotics)
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| | Re: New Outdoor Robot Photos
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(...) That would be typical rural Tennessee driveway. I picked it because it looks similar to a primary succession biome, and was alot more interesting to look at IMO than plain old grass. (24 years ago, 8-Apr-01, to lugnet.robotics)
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| | Windows 2000
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I have the Lego Mindstorms Robotic Invention System 1.5 and I was trying to run it in Win2k but am having problems with Direct Player. Let me just give you a background: 1. Before I installed RIS 1.5 in my laptop, I already have QuickTime 4.0 and (...) (24 years ago, 8-Apr-01, to lugnet.robotics)
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| | Programming the RCX...
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Hello to All, I don't have a LEGO MindStorm Robot to play with yet :>(, but I've been doing a lot of research trying to learn the various techniques used to program the RCX. Do any of you use or plan to use Java to develop your RCX programs? I could (...) (24 years ago, 8-Apr-01, to lugnet.robotics)
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| | Re: Programming the RCX...
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(...) There certainly is some kind of a Java implementation for RCX. I havn't used it though...most people start off with NQC (Not Quite C) which is a very good starting point...then if you need more, dump the RCX firmware and replace it with (...) (24 years ago, 9-Apr-01, to lugnet.robotics)
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| | Re: Programming the RCX...
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Steve, Thanks for the reply. I was thinking more along the lines of abstraction and simplification versus a pure visual language. Something that would make programming an RCX alot easier with respect to range checking for valid values, such as motor (...) (24 years ago, 9-Apr-01, to lugnet.robotics)
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| | Re: Programming the RCX...
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(...) Ah - OK. (...) I think that might just be overkill for a system as simple as the RCX. There are only three motor outputs - and you have no direct control over speed or angles - you can only say "forwards", "reverse", "brake" or "freewheel" (...) (24 years ago, 9-Apr-01, to lugnet.robotics)
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| | Re: Programming the RCX...
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(...) I have to disagree. I personally have three fairly significant robotic applications in the field which were developed using a visual programming language. I must confess that the language was not purely visual. The software IC components were (...) (24 years ago, 9-Apr-01, to lugnet.robotics)
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| | Re: Programming the RCX...
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(...) Connecting data paths between conventionally programmed chunks is not the same thing as "programming". (...) Yeah - *theoretically* - but in practice, people don't do that. (...) But it's still not a visual programming language...it doesn't (...) (24 years ago, 9-Apr-01, to lugnet.robotics)
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| | Re: Programming the RCX...
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(...) National Instruments would disagree with you. Their product Labview is a tremendous success, requiring a marketing machine the size of Unigraphics'. Plenty of "real" world programs have been built with Labview. For those not familiar: Labview (...) (24 years ago, 9-Apr-01, to lugnet.robotics)
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| | Re: I wish Lego made an "Anti-Backlash Gear"
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Rrrrrrrrr..... (...) (24 years ago, 9-Apr-01, to lugnet.robotics)
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| | RE: Chat server is up! (was: Need for chat server?)
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AH! :) ok, thxs. I'll be hanging around, time permiting :) mc. (...) (24 years ago, 9-Apr-01, to lugnet.robotics)
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| | The Java module you've been waiting for: JStamp
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Please pardon this announcement of JStamp - full details at (URL) have a closet full of Lego Technics, Droid kits, etc which we are itching to automate with JStamp. We hope to have some operational at JavaOne and, in future (not enough time to (...) (24 years ago, 9-Apr-01, to lugnet.robotics)
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| | Re: Programming the RCX...
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(...) You can try leJOS from (URL) It is written in Java, and allows you to write programs in Java. I have written an interface/editor for leJOS called lVI available at (URL) A new version fixing some big problems should be out soon. Andy (...) -- (...) (24 years ago, 9-Apr-01, to lugnet.robotics)
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| | Re: Programming the RCX...
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In addition there are versions of ladder logic which are used in PLCs in millions of industrial applications. I would classify ladder logic as visual. There are also some UML (Unified Modelling Language) applications such as Rhapsody that allow you (...) (24 years ago, 9-Apr-01, to lugnet.robotics)
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| | Re: New Outdoor Robot Photos
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(...) These are great looking robots and photographs, I think the way you have used colour on the robots is fantastic. The quality of photographs is making me want to "upgrade" my digital camera ;-) Jennifer Clark (24 years ago, 9-Apr-01, to lugnet.robotics, lugnet.publish.photography)
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| | Re: Programming the RCX...
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oops, should have read the rest of the thread ;-( sorry (...) (24 years ago, 9-Apr-01, to lugnet.robotics)
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