 | | Re: RCX 2.0 Power Supply
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(...) Indeed, the input capacitor of the RCX is rated 10V, so I would not do that for a too long time. This 1000µF capacitor, used to keep memory during battery exchange, is directly connected to RCX board supply input. By the way, this capacitor is (...) (20 years ago, 15-Sep-04, to lugnet.robotics, lugnet.trains, FTX)
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| | Re: RCX 2.0 Power Supply
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(...) You need to check the voltage while the PS is under load. Pretty much every power supply puts out more when the load is low or nothing. Has to do with loads of factors, but mostly quality of the PS (and (thus) internal resistance of the PS) (...) (20 years ago, 15-Sep-04, to lugnet.robotics, lugnet.trains)
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| | Re: RCX 2.0 Power Supply
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(...) On a marginally related note, does someone out there have the equipment to accurately test the output voltage of some typical dc power supplies like the one used for this external ps? I tested every ps I could find in my house (probably 20 or (...) (20 years ago, 15-Sep-04, to lugnet.robotics, lugnet.trains)
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| | RCX 2.0 Power Supply
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I've crossposted to .trains because this will be useful for those wanting to run LDCC with an RCX 2. Hi All, I've posted some photos on Brickshelf of an external power supply for the RCX 2. The nice part about the design is that program memory is (...) (20 years ago, 15-Sep-04, to lugnet.robotics, lugnet.trains, FTX)
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| | NWBrickCon™ 2004 Speed and Master Build Contests
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The ISD Speed Build has been done. And Done. And DONE! We in the Great NorthWest are going to present a new challenge. An open competition speed build - each contestant alone. No teamwork, no committee, no sharing of the glory - or the prizes! Here (...) (20 years ago, 13-Sep-04, to lugnet.events, lugnet.events.nwbrickcon, lugnet.announce, lugnet.org.us.sealug, lugnet.trains, lugnet.org.scibrick, lugnet.castle) !!
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| | Great Edmonton Train Show (GETS) this weekend
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This weekend, Sept 18 & 19th The Great Edmonton Train Show is being held in Edmonton, Alberta, Canada. If you are in the neighborhood drop by and check out NALUG's display this year. The show is being held at the Mayfield Inn Trade Center, 16615-109 (...) (20 years ago, 13-Sep-04, to lugnet.trains, lugnet.org.ca.nalug, lugnet.loc.ca.ab, lugnet.announce)
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| | Re: Couplings for long overhang 4 wheeled vehicles
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(...) Tim, I believe the practice with such systems is to cross the chains, which would reduce the sag on curves somewhat. (20 years ago, 13-Sep-04, to lugnet.trains)
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| | Re: Couplings for long overhang 4 wheeled vehicles
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Mind you, having had a look at my prototype again, it seems it used a centre buffer and side chains, the problem with that of course, is that for Lego 'corners' the chains would have to be so long they would drag on the track! Tim (20 years ago, 12-Sep-04, to lugnet.trains)
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| | Re: Couplings for long overhang 4 wheeled vehicles
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(...) I had considered the problem of relying on the friction of the axles/pegs. My thoughts were that the magnet to magnet join would actually be the weak link, although the coupling assembly might pull apart a little at a time with use. Presumably (...) (20 years ago, 12-Sep-04, to lugnet.trains)
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| | Re: Couplings for long overhang 4 wheeled vehicles
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(...) That's right. The problem with that is you're relying on the strength of the axle and peg friction in order not to pull the couplings apart. With 12-wide stock there's some serious weight to pull! Also, your magnet holder is likely to rotate, (...) (20 years ago, 12-Sep-04, to lugnet.trains, FTX)
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| | Lego Train sets spotted in Historic Rail catalog
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I get a catalog from Historic Rail (www.historicrail.com) They are a seller of railroad books, art, and memorabilia. They have in the past featured a small selection of HO scale (and other scale models). I just got their latest catalog and they (...) (20 years ago, 11-Sep-04, to lugnet.lego.direct, lugnet.market.shopping, lugnet.trains)
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| | Re: Couplings for long overhang 4 wheeled vehicles
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(...) Nicely done, it looks realy authentic. (20 years ago, 11-Sep-04, to lugnet.trains, FTX)
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| | Re: Couplings for long overhang 4 wheeled vehicles
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(...) Like this? (URL) It looks pretty simple an effective, you get just a little bit of movement on the coupling shoe pivot but not enough to cause jack-knifing. The problem from my point of view is that its too wide, I am looking for something (...) (20 years ago, 11-Sep-04, to lugnet.trains, FTX)
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| | Re: Couplings for long overhang 4 wheeled vehicles
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(...) I have used various methods, including the magnet holder mentioned above, though the method below is the best one for long overhangs: Parts required: Two Technic plates 2x4 with holes (3709b). (URL) One K3 black elastic band, 18mm diameter, (...) (20 years ago, 9-Sep-04, to lugnet.trains, FTX)
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| | Re: Motorized Switch using Monkey Motor
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(...) Hi Philippe, You're welcome & thanks! Perhaps Lenz decoders are more readily available where you live? They have some pretty small ones on their site here: (URL) The answer to your other question is "sort of". Most decoders have a DC (...) (20 years ago, 10-Sep-04, to lugnet.trains, FTX)
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| | Re: Motorized Switch using Monkey Motor
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(...) Thanks, Eric! Not sure I can take credit for "monkey motor", though. I think I heard that phrase (or one very similar) used somewhere else. I'm not sure. That would be cool if it caught on - it's sorta fun, like you say! :-) (...) I'll look (...) (20 years ago, 10-Sep-04, to lugnet.trains, FTX)
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| | Re: Motorized Switch using Monkey Motor
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(...) Cool design, gets the job done. I also wanted to say thanks for saying Monkey Motor. Its fun like that. Question, I haven't checked yet; did you add this to the Building Instructions Portal? Great post, thanks! (URL) e> (20 years ago, 10-Sep-04, to lugnet.trains, FTX)
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| | Re: Motorized Switch using Monkey Motor
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(...) Excellent insights and explanations, Mark -thank you. "...the whole unit flys up and back and just lays there pathetically where it happened to land." LOL Man, I've been there. It's sad, but funny at the same time. It's like these contraptions (...) (20 years ago, 10-Sep-04, to lugnet.trains, FTX)
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| | Re: Motorized Switch using Monkey Motor
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(...) Hi Ed, Thanks, glad you like the design. If you count the number of posts I've made about DCC in the forums, you'll see I'm pretty excited, too! :-) It's hit-or-miss when using the full 9V when operating the switches. Sometimes it holds (...) (20 years ago, 9-Sep-04, to lugnet.trains, FTX)
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| | Re: Motorized Switch using Monkey Motor
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(...) ... (...) Hello Mark, All I want to say right now is THANK YOU Mark. Again a very good shot. Now I am lurking around for useless "monkey" motors in the stock :-) The other point is to find Digitrax decoders around here. Can we still use a (...) (20 years ago, 9-Sep-04, to lugnet.trains, FTX)
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