 | | Re: A couple of questions
|
|
(...) 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)
|
| |
| | Re: Length of Diagonal Spreadsheet
|
|
(...) 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)
|
| |
| | Re: Length of Diagonal Spreadsheet
|
|
(...) 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)
|
| |
| | Re: Length of Diagonal Spreadsheet
|
|
(...) 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)
|
| |
| | Re: program wont stop running
|
|
(...) 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)
|
| |
| | Re: 2.0 Firmware
|
|
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)
|
| |
| | 2.0 Firmware
|
|
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)
|
| |
| | Re: Length of Diagonal Spreadsheet
|
|
"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)
|
| |
| | Re: plans for dual differential gear train?
|
|
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)
|
| |
| | Re: plans for dual differential gear train?
|
|
(...) 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)
|
| |
| | Re: plans for dual differential gear train?
|
|
(...) Hi Robbie, i guess that's what you're looking for : (URL) (24 years ago, 7-Apr-01, to lugnet.robotics)
|
| |
| | plans for dual differential gear train?
|
|
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)
|
| |
| | Length of Diagonal Spreadsheet
|
|
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)
|
| |
| | Re: droid kit at compusa $20
|
|
(...) The correct capitalization speaks for itself: CompUSA. (24 years ago, 7-Apr-01, to lugnet.robotics)
|
| |
| | Re: droid kit at compusa $20
|
|
In article <3ACE317E.8B5FB2A7@home.com>, Jason Stern <2busytobe@home.com> writes (...) Where's 'Compusa'?? (24 years ago, 7-Apr-01, to lugnet.robotics)
|
| |
| | Re: More juice out of the standard motors.
|
|
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)
|
| |
| | Re: program wont stop running
|
|
(...) 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)
|
| |
| | Re: calculating sensor resistance (Ohm's Law)
|
|
Pete Sevcik <lego-robotics@crynwr.com> wrote in message news:3ACE6E90.3FA776....rr.com... (...) full (...) That is not true for passive mode. The scale is 0v = 0 and 5v = 1023 in passive modes like touch or temperature. The problem with what Lauren (...) (24 years ago, 7-Apr-01, to lugnet.robotics)
|
| |
| | Re: New Outdoor Robot Photos
|
|
Graet Pix and Great designs, I'd like to see video of them in action!!!! (...) (24 years ago, 7-Apr-01, to lugnet.robotics, lugnet.publish.photography)
|
| |
| | Re: Junkyard Wars (Was Re: robotica on TLC)
|
|
(...) They already showed a handful of episodes with all-American teams - although it wasn't entirely clear where they'd done the filming. It *looked* like they might have flown everyone to UK to save the cost of rebuilding the set. (...) Dunno - (...) (24 years ago, 7-Apr-01, to lugnet.robotics)
|
| |
| | Re: legs anyone?
|
|
HEY! We crossed your gap!, in another day we'll climb your stairs! Infact!, now we will do it on two legs! .... Sir. =) (...) (24 years ago, 7-Apr-01, to lugnet.robotics)
|
| |
| | Re: calculating sensor resistance (Ohm's Law)
|
|
Lauren, Your diagrahm is correct. Your voltage assumption is not. On RCX the full scale is 2 volts to 5 volts, not 0-5 like you have assumed. Try re-calculating with a 3 volt span. - pete. (...) -- Pete Sevcik sevcik@flash.net Techno-stuff Robotics (...) (24 years ago, 7-Apr-01, to lugnet.robotics)
|
| |
| | Re: program wont stop running
|
|
(...) Well, I think this is doing exactly what I'd expect...here is the sequence of events: * You press the RUN button. * The little man starts running. * About a thousandth of a second later, it sets the power level to 7 * About a thousandth of a (...) (24 years ago, 7-Apr-01, to lugnet.robotics)
|
| |
| | Re: program wont stop running
|
|
(...) Sounds to me the program has indeed stopped. It's just the motor that's still on. --k (24 years ago, 7-Apr-01, to lugnet.robotics)
|
| |
| | Re: robotica on TLC
|
|
(...) My 6 year-old daughter and I enjoy a nice big bowl of popcorn each Monday night while we watch Junkyard Wars. I have heard that Junkyard Wars will be moving to California. Has anyone else heard that rumor. Also, I notice that they are looking (...) (24 years ago, 7-Apr-01, to lugnet.robotics)
|
| |
| | Re: calculating sensor resistance (Ohm's Law)
|
|
Stef Mientki <s.mientki@ids.kun.nl> wrote: : the inside of the RCX (in touch-sensor mode) is ok, and Ohm's law is also. I actually used temperature sensor mode, since I wanted a passive mode that wasn't just boolean. Would that have made a (...) (24 years ago, 7-Apr-01, to lugnet.robotics)
|
| |
| | Re: New Outdoor Robot Photos
|
|
Love those shots. Beautiful pictures. I am so green with envy. -- Bob Fay rfay@we.mediaone.net (URL) J. Mabelitini" <micahx@kih.net> wrote in message news:3ACE3181.9605DB...kih.net... (...) (24 years ago, 6-Apr-01, to lugnet.robotics, lugnet.publish.photography)
|
| |
| | Re: robotica on TLC
|
|
(...) Well - wet climate, everywhere is relatively close to the ocean and they salt the roads in icy weather. Wet, salty conditions maximise corrosion rates. A new car can comfortably be rusted out in 5 years Contrast with Texas where the warm. (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
|
| |
| | program wont stop running
|
|
O.k., I've never had this happen before, and don't know why it's doing it now. A program as simple as: task main() { SetPower(OUT_A,7); OnFwd(OUT_A); } won't stop running after i hit the "Run" button on the rcx (1.5). Also, the little person in the (...) (24 years ago, 6-Apr-01, to lugnet.robotics, lugnet.robotics.rcx.nqc)
|
| |
| | Re: calculating sensor resistance (Ohm's Law)
|
|
hi Lauren, you're quiet right, the inside of the RCX (in touch-sensor mode) is ok, and Ohm's law is also. So the problem lies probably in the sensor used. The cheap resistive pressure sensors are totally non-linear, more expensive sensors are full (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
|
| |
| | calculating sensor resistance (Ohm's Law)
|
|
I've been helping my little sister with her RCX-intensive science project, but we just finished all the calculations and her results seem screwy. Does anyone who understands RCX internals and/or Ohm's Law have some time to look this over and make (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
|
| |
| | droid kit at compusa $20
|
|
Just letting everyone know, Compusa has the Droid developer kit for 19.99 (usa, 29.99 with a 10.00 mail in rebate) on sale through Saturday. (24 years ago, 6-Apr-01, to lugnet.robotics)
|
| |
| | Re: robotica on TLC
|
|
Okay, gotta play the devils advocate and take this a step further. ;) Robot (noun). A robot has to have an onboard computer (processor) that is takes input from sensors and decides what to do with its outputs (actuators). It must be able to sense (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
|
| |
| | Re: Solar Cell Output in Direct Sunlight
|
|
I have a Halogen uplight lighting a room and my solar cell will power a motor, with no load up to a distance of around '6 (3' work height) from the light pole. This will fluctuate according to the reflectance's of the ceiling, walls, etc. Rose (...) (24 years ago, 6-Apr-01, to lugnet.robotics, lugnet.dacta)
|
| |
| | New Outdoor Robot Photos
|
|
I took some new photos of a couple of my robots, and they came out pretty good so I thought I'd share them. The photos were taken outdoors in indirect sunlight, with a Canon Powershot S20 3.34MP mounted on a Velbon tripod. Post-processing consisted (...) (24 years ago, 6-Apr-01, to lugnet.robotics, lugnet.publish.photography)
|
| |
| | Re: robotica on TLC
|
|
(...) Yeah, DGPS would probably be accurate enough, assuming you could get around the no-lock problem. (...) I believe the on-board GPS receiver would still need to fix on the Navstar constellation, regardless of whether or not it was a (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
|
| |
| | Re: robotica on TLC
|
|
(...) If you go to the website of the show, they say that *everything* in the junkyard is seeded. Everything that's there was put there by the show's producers. Not that it really makes the show less enjoyable. Although for some strange reason a (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
|
| |
| | Re: More juice out of the standard motors.
|
|
Mark Haye <mhaye(@)tivoli(.)com> wrote in message news:GA9p5z.JwG@lugnet.com... (...) 33% more voltage should also give you 33% more current, so power (i.e. voltage times current) should increase by 77%. But higher currents give higher (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
|
| |
| | Re: robotica on TLC
|
|
(...) I didn't realize that expressing an opinion was being defensive. Personally I enjoy the conversation much more if the participants are at least a bit passionate about the subject. I realize this is contrary to U.S. culture with it's emphasis (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
|
| |
| | Re: Advanced Control strategies
|
|
Definately agree on LegOS, my final year Computer Science dissertation was on autonmous learning on an RCX with genetic programming, I used LegOS 2.5, great stuff full C++ if you can do it in ansi you can do it here... But I'd say the best place to (...) (24 years ago, 6-Apr-01, to lugnet.robotics)
|
