 | | Re: Strong gear assemble?
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I believe the weakest points are the axles. They twist and bend easily. At points where you have to transfer the largest forces, make sure you don't have long axle sections between the wheels. Keep the wheels next to each other if possible. If you (...) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | RE: Strong gear assemble?
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A worm gear mounted against a 40t gear is, I believe, the 2-gear combination that provides the most torque. You may want to gear down the worm gear first, providing even more torque. In general, as speed decreases (assuming the decrease is caused by (...) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | Strong gear assemble?
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What is the strongest gear assebly? Using mostly RIS 1.5 pieces, but some extras, I need to design a gear box that has enough strength to lift the contraptions own weight. What is the strongest possible settup of gears that i could use to achieve (...) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | Re: Advice on Rotation sensors and steering please.
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I discovered, during the course of implementing a software interface to the Lego rotation sensors on another hardware platform altogether (not RCX) that there is a problem with the sensors themselves. They suffer from the well known "between states" (...) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | Re: Lego bulk
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(...) [snip] (...) Check out (URL). (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | Re: Advice on Rotation sensors and steering please.
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(...) I have run into "count loss" using the rotation sensors also. I found that anything above 40RPM is somewhat problematic. I imagine the exact numbers depend upon the size of the program you are running and how it is designed. But no matter what (...) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | Lego bulk
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I just noticed the text above the Lego Bulk page (this is in the Summer 20000 S@H catalog) ... It reads, in part: "We'll be adding more soon BASED ON CUSTOMER REQUESTS. So if you can think of something we should offer, we'd love to hear from you! (...) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | Re: RCX ver 2 firmware
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...or you install the Vision Command software. It upgrades the RCX firmware to 2.0, too. Tilman ----- Original Message ----- (...) ... (...) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | Re: Advice on Rotation sensors and steering please.
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(...) Yes - but it doesn't tell me the distance travelled - I need that too. Still, I guess that using one sensor in the differential for steering and one on *one* of the wheels for distance would work better. I guess that the fact that the (...) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | Re: Rotation sensor gearing.
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Hi ! (...) I think that common sense might lead you to suspect a number like 60 rpm. That's one rev per second. You could watch it go round! The one I measured ran at ~380 rpm from the RCX and ~420 rpm from the 9 v battery pack with no load. JB (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | Re: RCX ver 2 firmware
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Here is the link (URL) Original Message ----- From: "John Barnes" <lego-robotics@crynwr.com> To: <lugnet.robotics@lugnet.com> Sent: Thursday, September 21, 2000 2:08 PM Subject: RCX ver 2 firmware (...) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | Rotation sensor gearing.
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Great! Now the information is coming together. Denis Cousineau's Lego motors web page says that the 'new' Technics motor runs at 60rpm - and the Dacta site says that the rotation sensor is good to 500rpm. So gearing the motor up by a factor of (say) (...) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | RE: web site ordering
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{snip} (...) Great price! (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | RCX ver 2 firmware
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Ok, I give up. This question has probably been asked before, but ... Where do you go to download the new version 2.0 firmware for the RCX? JB (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | RE: Advice on Rotation sensors and steering please.
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Steve: Check this page on Lego Dacta. It says 500 rpm Max. (URL) Message----- From: steve [mailto:steve]On Behalf Of Steve Baker Sent: Thursday, September 21, 2000 8:41 AM To: Lego Robotics Subject: Re: Advice on Rotation sensors and steering (...) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | Trade Show
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-- MIME ATTACHMENTS DISCARDED: 1. Content-Type: multipart/alternative; boundary="----=_Next....11458660" Content-Length: 2320 2. Content-Type: text/x-vcard; name="David Sam Edwards.vcf" Content-Transfer-Encoding: quoted-printable (...) (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | web site ordering
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has anyone ordered from the site www.eblok.com? they have a lot of individual mindstorm sensors at really good prices and was wondering is they where reliable! thanks for your help. Jason P.S. I just got my new RIS 1.5 set from electronics boutique (...) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | Is Extreme Creatures Good? (WAS: Re: US S@H Specials, Sep 20 - Sep 26, 2000)
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(...) is this a good set? (i know i cant beat the price, but i wanna know if i'll have fun with it) josh (25 years ago, 21-Sep-00, to lugnet.market.shopping, lugnet.robotics.rcx, lugnet.robotics, lugnet.technic)
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| | Re: Advice on Rotation sensors and steering please.
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Of course, for the back wheels you could join the two shafts in a differential and the difference of the two would appear in the rotation of the casing (don't forget some reverse gearing to make the sum zero for two motors going in the same (...) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | Re: Advice on Rotation sensors and steering please.
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(...) So you tell your system to drive both motors forward and if you do nothing else then you are only on count off! You must have better matched motors than mine! I see a 10 or 20% difference in their speeds that needs to be corrected to get the (...) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | Re: Advice on Rotation sensors and steering please.
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The solution is to float the motor. There is code in the NQC tutorial for this. It works very well. the file is 9_rotation.nqc I will E mail it if you do not have the file. -- Bob Fay rfay@we.mediaone.net The Shop (URL) Gombos" (...) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | Re: Advice on Rotation sensors and steering please.
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In my experience setting the motor to off has worked best. Constantly check for differences in the counts. I was only using 2 sensors, and after 500 or so steps(about 15 ft), there was only a 1 count differenece. The main factor in determining what (...) (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | lego usb cam
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hi, i saw the lego usb cam today in the shop. but i didnt bought it, because its only win 98 and an usb cam. could anybody who bought it send me the software i want to play around with it with another camera i have mounted on my robot - if possible. (...) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | 9V train speed controller for powering a code pilot?
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Hello everybody, Has anyone ever tried using a 9V train speed controller for powering a code pilot? I'd like to use this setup to in order to create little programs for a 9V train. Any experiences or thoughts? I would be grateful if you'd let me (...) (25 years ago, 21-Sep-00, to lugnet.technic, lugnet.trains, lugnet.robotics)
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| | Advice on Rotation sensors and steering please.
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OK - so I am now the proud owner of three rotation sensors. I've built a really basic two-wheeled robot with a caster at the back for the purposes of getting in some programming experience with these things. Each wheel has a rotation sensor (...) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | Controller for the Vision Command power stand
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I built a controller for the power stand that can be build with the Vision Command kit. You can find details at my web site (URL) me know what you think. Ryan -- reply to: rjschave at home dot com (URL) (25 years ago, 21-Sep-00, to lugnet.robotics)
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| | Re: Modelling boolean gates with trains
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(...) For those of a mathematical disposition, I vaguely remember an article on the subject of building computing logics out of train tracks in 'Eureka' (the annual journal of the Cambridge University undergraduate math society, the Archimedeans) a (...) (25 years ago, 20-Sep-00, to lugnet.general, lugnet.off-topic.geek, lugnet.robotics, lugnet.edu, lugnet.trains)
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| | Re: How 2 Augment RIS 1.5? (ebay comments)
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(...) I second that. I purchased a few much sought after 84xx sets on Ebay, and my wallet cried and bled. I would suggest that you not go after MIB (mint in box) or MISB (mint in sealed box) sets, as they fetch a premium from anal-retentive toy (...) (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | Re: How 2 Augment RIS 1.5?
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I just figured that out too :) I always wondered, what is TRU? I have never seen one of those. Now I know that I go in one very often. Andy (...) (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | Re: Differential gears
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The Shop at Home catalog lists a gear set which includes it. It also includes a universal which is also hard to find in sets. I just bought some of these gear packs recently. JB (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | RE: Differential gears
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You can also order then 2-at a time from Lego Shop @ Home. Doug Wilcox Senior Web Developer iMcKesson Provider Solutions Group-Needham 160 Gould Street, Suite 130 Needham, MA 02494-2308 Phone: 781.453.2900 x 237 Fax: 781.455.7990 e-mail: (...) (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | RE: How 2 Augment RIS 1.5?
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Do you know how LONG I've been subscribed to this list, and I just NOW figured out that TRU = Toys R Us! I'd often lamented that there was no "TRU" near me. Time to rejoin the "I am an Idiot" thread. Doug Wilcox Senior Web Developer iMcKesson (...) (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | Differential gears
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I know this has probably been asked before but what Technic sets can I get the differential gear out of? (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | RE: How 2 Augment RIS 1.5?
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Speaking from personal experience, I recognize the first step on the slippery path to rationalized excessive Lego purchases. I'd say run, but it's too late to turn back now....;>) Still, it's fun and doesn't have to be painful. The buckets are ok, (...) (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | Re: How 2 Augment RIS 1.5?
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(...) Don't forget the 3033 basic tub with 1200 pieces. Normally $20. But the current Kmart sale is buy one, get 50% off a second. So its a deal if you have a need for two or someone to share a second one with. Keep an eye on TRU sale tables too. I (...) (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | Re: How 2 Augment RIS 1.5?
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(...) Lots of technic sets. 84xx series if possible. (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | Re: How 2 Augment RIS 1.5?
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(...) would (...) Bucket", (...) You're much better off with a "Basic" or "Classic" set. There's currently a red "Classic" bucket on the shelves of many stores that costs $10 and contains 400 pieces. The "Star-Wars in a Bucket" set contains less (...) (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | How 2 Augment RIS 1.5?
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I need to augment RIS 1.5 with more Lego components, sometimes to build a temporary stand and sometimes as part of a robotic concept. Lego S@H and Dacta let you buy specific parts, but perhaps just a set of toy blocks would be as good at a lower (...) (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | anyone got a CueCat?
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I was over on /. weighing in on the current controversy over Digital Convergence's CueCat barcode scanner and their current legal fiasco over some Linux developers creating an open-source driver and the accompanying high-speed crosscheck it (...) (25 years ago, 20-Sep-00, to lugnet.robotics)
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| |
| | hi
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hi and hello i m a newbee on the list, i m working with the lego robotic invention system. i was really surprised how much work was done on thi system from several people. i mtrying to get my robot as wireless as possible, and also the ir connection (...) (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | Re: Modelling boolean gates with trains
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(...) If NOT is reversing direction, than 1 is forward and 0 is back. (Or the other way around; whatever.) But I'd be curious to hear how you envision more complicated logic! (25 years ago, 20-Sep-00, to lugnet.general, lugnet.off-topic.geek, lugnet.robotics, lugnet.edu, lugnet.trains)
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| | RE: R: good sets?
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Heh, heh. I'm at my office ... with my Lego robotics stuff. :Þ Doug Wilcox Senior Web Developer iMcKesson Provider Solutions Group-Needham 160 Gould Street, Suite 130 Needham, MA 02494-2308 Phone: 781.453.2900 x 237 Fax: 781.455.7990 e-mail: (...) (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | Re: Modelling boolean gates with trains
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If by 1 your mean TRUE and by 0 you mean FALSE, and given that in Boolean logic TRUE = NOT FALSE, then two conclusions from what you have said is "train on the line" = "reversed" "train not on the line" and "train not on the line = "reversed" "train (...) (25 years ago, 20-Sep-00, to lugnet.robotics)
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| |
| | Re: Lego Mindstorms in Swedish television
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(...) Or their website: (URL) (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | Modelling boolean gates with trains
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|
Okay, this might be totally impossible (or insane or banal), but has anyone modelled boolean functions on a train layout (System or Duplo)? At the moment I'm thinking "train on the line"=1, "not on the line"=0. NOT could be done by reversing the (...) (25 years ago, 20-Sep-00, to lugnet.general, lugnet.off-topic.geek, lugnet.robotics, lugnet.edu, lugnet.trains)
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| | Re: R: good sets?
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|
(...) Uh, sorry, what do you mean? The rubber on the plastic hub or what? At least I´m not the only one though... ;) Damned, and here I am stuck at the office... (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | Re: Purchasing RCX...Which Version?
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|
I like my 1.0 RCX because of the power jack. I typically use the RCX to automate train layouts and buildings. I like to leave it on, animating the scene for a long period of time. The power cable keeps the batteries from running out. You can get a (...) (25 years ago, 20-Sep-00, to lugnet.robotics, lugnet.market.shopping)
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| | Announce: Nashua Robot Builders
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|
All are welcome to this seasons kick off meeting. A bunch of use are planning to enter the Trinity Fire Fighting Robot Contest in 2001, we'll be adding a little more structure to the club and Rich will be demonstrating his Electronic Mouse built (...) (25 years ago, 20-Sep-00, to lugnet.robotics)
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| | Re: Solenoid Pneumatic Valve
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|
Hi: (...) All I did was host the pictures. It was Jeffrey Hazen who did all the leg work. I did a bit of searching on the net and found that the company who makes these has a web page. (URL) the info a person could want. IF and when I get some I (...) (25 years ago, 19-Sep-00, to lugnet.robotics)
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| |
| | Re: Making temporary lines on floors
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|
(...) How about infrared shoe polish? :) Dave (25 years ago, 19-Sep-00, to lugnet.robotics)
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| | Re: Making temporary lines on floors
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|
Trying buying carpet with built in lines ? ;) JB (25 years ago, 19-Sep-00, to lugnet.robotics)
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| | Re: Vision Command & Windows 2000
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|
I've also had this dilema. They won't even let you *try* and run it. Quite frustrating. I've pretty much resigned myself to waiting for someone much brighter than me to get this thing to work with NQC. The directory is for the Quikcam software which (...) (25 years ago, 19-Sep-00, to lugnet.robotics)
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| | Re: Making temporary lines on floors
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|
(...) As long as you remove it within a week or two. Try leaving it in a place for a few months. It'll leave a big nasty mess. (25 years ago, 19-Sep-00, to lugnet.robotics)
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| | R: good sets?
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|
Andreas Mattern <lego-robotics@crynwr.com> wrote in message 3.0.6.32.20000914084...ruhe.de... (...) the steering (...) The steering works very well if you mount the front wheels right: i.e. the reverse of rear wheels. I already know 3 guys (me (...) (25 years ago, 19-Sep-00, to lugnet.robotics)
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| | Re: Making temporary lines on floors
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|
"Kevin Reid" <kpreid@attglobal.net> wrote in message news:1eh5gig.1u4zrba...bal.net... (...) term (...) left (...) Good masking tape doesn't leave a residue. That is why it is called masking tape -- you use it temporarily to mask off a surface, and (...) (25 years ago, 19-Sep-00, to lugnet.robotics)
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| | RE: Can anyone help identify a tyre?
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|
You can get two of them in the Lego Dacta hubs & tires set (# W779899) for $6.50.They used to be quite common--I have quite a number of them--in "regular" Lego. (URL) Wilcox Senior Web Developer iMcKesson Provider Solutions Group-Needham 160 Gould (...) (25 years ago, 19-Sep-00, to lugnet.robotics)
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| | Exploration Mars 50% at Potomac Mills
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|
Call them, they may have more on the damaged table for 50% off + shipping in the US. Nice $25 set for parts: 2 worm gear boxes, universal joint, 4 very large plates, 6 small balloon tires, 2 2x2x4 girder pieces ... -- -Rob. ===...=== New sets and (...) (25 years ago, 19-Sep-00, to lugnet.robotics)
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| | RE: Solenoid Pneumatic Valve
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|
I used the low pressure version (3VDC only available as low pressure). I got the first one sampled, normally $29.00 US for one at a time. Jeffrey Hazen North Mill Technology jeffrey.hazen@northmill.net -----Original Message----- From: Eric Brok (...) (25 years ago, 19-Sep-00, to lugnet.robotics)
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| | Vision Command & Windows 2000
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|
Hi, Have anybody ever try to install the VC in the Windows 2000? There are a Windows 2000 directory in the VC CD-ROM, but I can't find any document that saids thats is possible to do this. Thanks, zanette. (25 years ago, 19-Sep-00, to lugnet.robotics)
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| | Re: Solenoid Pneumatic Valve
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|
Xcuse me if I coe in late, but did Chris mention if he used low or high pressure version and what they had cost him? Eric Jeffrey Hazen <jeffrey.hazen@northmill.net> schreef in berichtnieuws 01C020B1.C60747C0@northmill1... (...) Parker (...) it (...) (25 years ago, 19-Sep-00, to lugnet.robotics)
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| | Re: Which should I get first -Exploration Mars or ultimate Accesories?
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(...) Absolutely. The Ultimate Accessory kit has lots of useful stuff compared with the Exploration Mars. Kerry (25 years ago, 19-Sep-00, to lugnet.robotics)
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| | Re: Making temporary lines on floors
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|
(...) Look at the Scotch Magic Removable Tape (#811) by 3M. There's some info available online through dynamic links... go to (URL) and search for "removable tape". The stuff is clear, kinda like the regular Scotch Magic Tape, but you could use it (...) (25 years ago, 18-Sep-00, to lugnet.robotics)
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| | Re: Making temporary lines on floors
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|
(...) For carpet, that cloth with those tiny plastic hooks migth work. Isn't it called "Velcroft" or something like that in Englisch ? We Dutch call it (translated) "Burdock ribon". You can buy it in the form of a long 20-30 mm width ribon. But try (...) (25 years ago, 18-Sep-00, to lugnet.robotics)
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| | Lego Website
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|
They seem to be turning the Lego Website inside out. The catalog pages are gone. The shop is not yet open. I did finally find the power pack pages under create and race, try looking at www.lego.com/powerpacks/ I tried that a number of times, but it (...) (25 years ago, 18-Sep-00, to lugnet.robotics)
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| | Re: Making temporary lines on floors
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|
I dont know much about robotics but I saw this message and thought, hmm, I wonder if a whole bunch of 1xX bricks laing on their side would work... Just an idea... (...) (25 years ago, 18-Sep-00, to lugnet.robotics)
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| | Can anyone help identify a tyre?
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|
There is a large rubber tyre about 1 3/4 inches diameter which comes with the Mindstorms stuff. Its a solid tyre and even though there's a lot of rubber, it's is fairly narrow and fits on the small sized yellow hubs. What I want to know is if there (...) (25 years ago, 18-Sep-00, to lugnet.robotics)
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| | Re: Making temporary lines on floors
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|
there is that blue "painters tape" its designed to come off of painted surfaces without leaving a residue the downside is that ive only seen it in blue. b ---...--- (...) (25 years ago, 18-Sep-00, to lugnet.robotics)
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| | Making temporary lines on floors
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|
Are there any good ways to produce TEMPORARY markings on large areas of floor surface (mainly carpet, some linoleum) suitable for line following robots, etc.? Someone suggested masking tape, but that wouldn't be good for long term usage (leaves (...) (25 years ago, 18-Sep-00, to lugnet.robotics)
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| | Re: Purchasing RCX...Which Version?
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|
Neither the Cybermaster box or the unit itself shows any evidence of the unit having FCC approvals. Unless they change this, which I doubt because it's an older product, I don't think it will ever be officially available in the US. Randall (...) (25 years ago, 18-Sep-00, to lugnet.robotics)
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| |
| | Re: Purchasing RCX...Which Version?
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|
Eric, I've noticed that some of the TRUs around here (Cleveland, Ohio) still have both versions on their shelf, and the 1.0 has a big sticker on it saying that you can get the software upgrade free. The main difference is that 1.0 has the power (...) (25 years ago, 18-Sep-00, to lugnet.robotics, lugnet.market.shopping)
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| | Re: Purchasing RCX...Which Version?
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|
You can get 1.0 and 1.5 systems on ebay, but there is some risk and the prices are amazingly high (80-95% of retail). There is not that much difference between the 1.0 and 1.5 kits, and I recommend the latest release, because half of it is a (...) (25 years ago, 18-Sep-00, to lugnet.robotics, lugnet.market.shopping)
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| | Re: Purchasing RCX...Which Version?
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|
I think I can answer all of these. I'll make down what I'm not certain about, and my fellow list members can correct me as need be. 1. The only significant difference between the 1.0 and the 1.5 is the AC port, which the 1.0 has, but the 1.5 lacks. (...) (25 years ago, 18-Sep-00, to lugnet.robotics)
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| | Re: Purchasing RCX...Which Version?
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|
I have a similar question to Tim's. I'm finally gonna buy a Mindstorm's Invention Kit. Is it possible to find 1.0 RCX still? Where can the best deals on Invention Systems be found? thanx, eric (...) (25 years ago, 18-Sep-00, to lugnet.robotics, lugnet.market.shopping)
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| | Purchasing RCX...Which Version?
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|
Hello, Everyone: I'm interested in purchasing an RCX, but from what I've read the 1.0 is a lot better than the 1.5 (and since they're still giving the upgrade kits free, what's the difference?). Can anyone explain the differences between the 1.0 and (...) (25 years ago, 17-Sep-00, to lugnet.robotics)
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| | Re: Solenoid Pneumatic Valve
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|
(...) (URL) Now all I need is the reduction valve. regards. John (25 years ago, 17-Sep-00, to lugnet.robotics)
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| | Solenoid Pneumatic Valve
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|
Hi Everyone: Chris Mango has put a couple of pictures on his web site if anyone is interested in seeing the teeny valve assembly. Thanks Chris. (URL) additional information for those who are curious....It's from a Parker Hannifin division called (...) (25 years ago, 17-Sep-00, to lugnet.robotics)
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| | Re: Two original Technic creations
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|
This is exactly the reaction I would have written! Keep on building! Klaas from Holland ---...--- Sean Kelly schreef: (...) (25 years ago, 16-Sep-00, to lugnet.technic, lugnet.robotics)
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| |
| | Re: My simple pneumatic switch
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(...) Well, I came up with a simple design for a pneumatic switch: (URL) (25 years ago, 16-Sep-00, to lugnet.robotics)
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| | Re: My simple pneumatic switch
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Remember that this holds most of the pneumatic stuff that does not move. If you only need one switch, then IMHO it is a very good switch/base. For more switches though, it could get a tad bulky. Andy (...) (25 years ago, 15-Sep-00, to lugnet.robotics)
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| | Re: My simple pneumatic switch
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(...) What a horrific amount of work to get ONE switch to 'switch'. Ugg... I think I'll have to look into them Fishertecnic electronic ones. Anyone have an update? Good job though, it does look robust and reliable. Dean -- Coin-Op's For Sale!: (URL) (...) (25 years ago, 15-Sep-00, to lugnet.robotics)
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| | Re: Old & New Motors: work output comparison???
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(...) There is a good page about this here: (URL) his tests found that the the new 9V geared motor provides at least twice as much torque at a similar RPM. In practice, some pretty amazing torque can be obtained with either, and sometimes I favour (...) (25 years ago, 15-Sep-00, to lugnet.technic, lugnet.robotics)
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| | Old & New Motors: work output comparison???
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It's CRANE TIME ast Elwood & Bubbas' workshop. After a two year - hiatus, E & B are back at the drawing board, hard at work on their biggest crane ever. My quest is for performance measures of the old & new Lego motors: which one produces more work (...) (25 years ago, 15-Sep-00, to lugnet.technic, lugnet.robotics)
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| | Solenoid Pnuematic Valve
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I have finally found a tiny solenoid valve for use with the RCX. It fits into a 2x4 stud brick, and runs off one of the motor outputs. All I had to add was a resistor, a zener (the valve runs on 3 VDC), and a diode (reverse voltage stop). It's (...) (25 years ago, 15-Sep-00, to lugnet.robotics)
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| | Details of pneumatic stuff inside Otto
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(...) Kevin and others asked for some more details about the pneumatic devices inside my robot Otto. I just put some more pics on the page, hope they help: (URL) (25 years ago, 15-Sep-00, to lugnet.robotics)
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| | Re: My simple pneumatic switch
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Looks good. Thanks for sharing. Ryan -- reply to: rjschave at home dot com (URL) <lego-robotics@crynwr.com> wrote in message news:B5E5F934.3FF1%a...one.net... (...) obvious (...) (25 years ago, 15-Sep-00, to lugnet.robotics)
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| | Announcing new set database
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LUGNET is pleased to announce a new and improved LEGO set database: (URL) over the previous database include: New Display Options Chose compact lists, thumbnails, or fully-detailed pages to browse through. Smarter Searches Display any range of set (...) (25 years ago, 15-Sep-00, to lugnet.admin.database, lugnet.general, lugnet.cad, lugnet.robotics, lugnet.market.shopping, lugnet.announce) !!
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| | Lego Lingo
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Hi, I saw a message a few days ago asking about Director. I would be most interested to know if you could use Lego with Director as well. I am currently playing around with the Handy Board for the sole reason that I don't think I can use Lingo with (...) (25 years ago, 14-Sep-00, to lugnet.robotics)
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| | Ultimate Robotics Storage
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For those of you who are interested, I've got a photo up of my Plano 758 box up. (URL) Wilcox Senior Web Developer iMcKesson Provider Solutions Group-Needham 160 Gould Street, Suite 130 Needham, MA 02494-2308 Phone: 781.453.2900 x 237 Fax: (...) (25 years ago, 14-Sep-00, to lugnet.robotics)
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| | Styling Pack
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I got a couple of the power packs. One color theme of the styling pack is silver. The big panels are silver and so are the flexible rods and most of the flexible tubes. The flexible rods are no good for drive shafts, they twist too easily. The rods (...) (25 years ago, 14-Sep-00, to lugnet.robotics)
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| | Re: C/C++/ActiveX interface to Quickcam or Vision Command??
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YES. Take a lot at VideoServer. It is a very simple interface to access any camera from windows to do any image processing. Here is the link (and it is free for non-commerical use): (URL) Original Message ----- From: "Amos" <amos@ite.his.se> To: (...) (25 years ago, 14-Sep-00, to lugnet.robotics)
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| | Re: sound design (Re: 2nd RCX AND PNEUMATICS)
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(...) Yup. You really have to use a belt somewhere in the drive train with these motors, which allows it to slip instead of jamming. (...) I'd tend to agree, although they can be useful in functional applications if you are very careful. Sometimes I (...) (25 years ago, 14-Sep-00, to lugnet.robotics)
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| | Re: Two original Technic creations
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(...) Thanks - I did things this way simply because I too love reading such material, not just about Lego but on many technical subjects. Looking forward to checking out your Robot Diaries ASAP. Jennifer Clark (25 years ago, 14-Sep-00, to lugnet.technic, lugnet.robotics)
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| | FA: gears, Intelligent House (2 micromotors), Duplo and more
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I have a bunch of LEGO auctions up now with lots including all different types of gears, 2 Intelligent House sets (w/light sensor and 2 micromotors), Duplo Toolo and Early Simple Machines, and more. Thanks for the read Ebay username - SaraJoey (URL) (25 years ago, 14-Sep-00, to lugnet.market.auction, lugnet.robotics)
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| | Re: My first Lego robotics competition
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(...) If you have the Cybermaster touch sensors, you can multiplex all three on a port, see (URL) . Use a task to look at the raw values and decode which sensors are pressed, e.g. in NQC: #define TOUCH_SENSOR SENSOR_1 int touch_sensor_state; #define (...) (25 years ago, 14-Sep-00, to lugnet.robotics)
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| | C/C++/ActiveX interface to Quickcam or Vision Command??
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Does there exist a C/C++/ActiveX programming interface (custom-built or supplied by the companies) that allows a user to control and process the image captured from Quickcam or Vision Command, preferrably under Visual C++ environment?? (25 years ago, 14-Sep-00, to lugnet.robotics)
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| | sound design (Re: 2nd RCX AND PNEUMATICS)
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(...) Yes, my two also emit a rather unpleasant high-pitched sound. Personally, I tend to always use gear motors. In the beginning I used a minimotor for steering a robot, but it was very slow and jammed often. I'd say they are better for rotating (...) (25 years ago, 14-Sep-00, to lugnet.robotics)
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| | My simple pneumatic switch
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Since this topic has come up, I would like to share my simple pneumatic switch design. It's robust, it works great, and it should be fairly obvious from the picture and description provided in the link below how it works. (URL) (25 years ago, 14-Sep-00, to lugnet.robotics)
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| | Re: 2nd RCX AND PNEUMATICS
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(...) Speaking of rattling, I recently bought the little red servo motor and that blasted thing is *loud*! Is this normal or did I get a bad model with a flaw? (25 years ago, 14-Sep-00, to lugnet.robotics)
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| | RE: good sets?
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(...) I think it´s running out so get it while you can! ;) The catalogue inside was from 98, in the 2000 catalogue it´s only very small and not featured at all and in the online catalogue I can´t even find it. Now that I´ve assembled it I must say (...) (25 years ago, 14-Sep-00, to lugnet.robotics)
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| | Converting the (MS)2 from 6 to 10 outputs... Aide?
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I've been thinking of upgrading my (MS)2 Expander from it's current 6 ports to 10 ports. For those of you that aren't familiar with the (MS)2 Expander you can look here: (URL) the (MS)2 gives you two banks of 3 outputs. Each bank is independent and (...) (25 years ago, 14-Sep-00, to lugnet.robotics)
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