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Everything posted by Toastie
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!Wow! I am reconsidering or better take back every single comment I made about 6 vs 7 vs 8 wide in the past. I am still on the mostly 6- to 7-wide scale and thought this is it. Seeing this ... yes, 8 wide was a very good choice. An excellent model. You know what Ralph? Just keep on building trains - I guess with this type of inspiration, we can pull over a good number of people to become train heads ... once your are here, you never want to leave again ... Thanks for sharing!!! Regards, Thorsten
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No Dilemma here! They are all beauties and all deserve a place in the LEGO Diesel Hall of Fame: The Super Chief engine (nine years ago!!!) was simply breath taking - I saw it and almost got a heart attack! There was serious extension of the frame plate, studless snotting in the front, and optionally a real headlight! The real-gray decorative sides for the motors - wow ... And then the GP38. Look at the hand rails! We are still 7 years in the past! The BNSF color scheme simply is beautiful ... So TLC took some time to think. There were other trains as well, even diesels, but not in this league. I bet the folks at TLCs also regularly visit this site, as well as others - and they came out with the Maersk train. Yes, from the appearance it is the most impressive. Yes I do have one. The jump ahead building-wise is not so much of a jump as the Super Chief and the GP38 were, as far as I am concerned. You know what? I love all three - and the first two are a little closer to my heart because they were more inspiring and made absolutely sure that I would never ever go back into any dark age meander. Since I could not press all three option buttons - I did not vote. Too tough! Very nice topic though TB! Best regards, Thorsten
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And that is true. But, I'd like to come back to my "reasoning" posted in this thread before. All you guys are doing is living in a perfect world. Your energy is flowing into motion via perfect conversion. If that would be the case, you don't have to use any energy at all after reaching final speed. Real world means that in addition to all the calculations presented here, we have serious, if not dominating losses. Philo has shown us the electrical vs. mechanical power conversion efficiency of the motors at a certain, ideal load (he is hauling a mass basically frictionless up in his measurements). From that data set we can at least estimate the internal losses; and they are quite significant. But these would be virtually constant and not show up in any electrical power consumption vs run time comparisons. We are hauling trains, translating to a physically serious mass at constant potential energy with respect to height (we are not going up/down in this discussion, we are moving horizontally (ideally)). So, in this ideal electrical world discussed so far, once we are up to speed, we solely have to overcome internal losses AND friction losses. The faster we go, the less mechanical friction losses become. They are greatest close to not moving at all anymore (that is the reason ABS systems are installed in cars). I have recognized that in my little movie on my RCX driven trains: You have to go to RCX power level four to get the train going. Once it moves you can go down to power level two. I have no idea, but I guess friction is usually dominating in the battery life determining process (at least when hauling some 10 cars). So we may get an ideal picture of battery life asking the electrical gurus (I agree LT: Where on earth is Marc Bellis???) but where are the mechanical experts? Friction must have an impact. Otherwise people would not ask about lubrication, grinding, and what not. Once you have accelerated the space shuttles to final speed, the motors are turned off; well they fall back to earth. Friction is modest up there ... Regards, Thorsten
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... and I was afraid that I am the only one - at age 49 - still sitting in a mess of bricks/plates/things and trying to keep up with all these fantastic builders ... well, I am feeling much better now! In any case, this 8-wide Maersk train will be a beauty. I can clearly see it already. All the best, Thorsten
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As far as I am concerned there is absolutely nothing wrong with your measurements, Hoeij. [True, PWM is on/off modulation, so 50% of 9V in PWM means 9V turned on and off at 50% duty cycle. Whatever you measure with you meter depends on the electronics in the meter rather than what is going into the motor (that is 50% of 9V times amps at 100% minus losses due to phase shifts; nerdy, I know and it doesn't matter).] The very moment you have accelerated your train to final speed, all the additional energy you need from now on is to overcome friction forces. And not to establish this speed. Friction forces originating from your train design, from wheel vs track friction, and from aerodynamic friction, and what not. The latter before "what not" is next to nothing compared to the rest. (That is very different for aircraft, but we are talking about mass monsters - trains, going at comparably low speed.) Going LEGO slowly means that you have to overcome basically the same losses as compared to LEGO high speed. In real world, friction forces go dramatically up with speed. But LEGO trains don't ever go that fast that you will notice this (tiny) increase in frictional loss as compared to - "design flaws" created loss. Design flaws in terms of "running a plastic axle through a reasonably matching plastic hole". Or - non-matching wheel-axle width/track width. Or, even worse, poorly matched rubber bands. There is so much energy required to keep the LEGO machines up and running at constant speed - slow or fast simply doesn't matter. Hope that makes sense, give me Flak, I am not a physicist ... Regards, Thorsten
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What a beauty! Very nice 12V PF transition - so smooth, TLC's long term engineers must love this! Quick question: All the wheels are powered via the connection rod or just the middle axle? And how does this beauty negotiate curves? Can't figure out from the photos. Summary: Beautiful MOC. Beautiful Theme. I love it. Regards, Thorsten
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Absolutely true!!! Don't use olive oil. Olive oil is healthy - which means it is rather "easy to digest" for the body. That translates to "easy to degrade" - which is basically the same thing ... Olive oil is a highly variable and very complex mixture of chemical compounds. Most of them are available for digestion ... and thus don't like light (a good olive oil comes in a dark container), temperature, oxygen and the like. When you run your steamers, man ... I know, sounds all nerdy, but over at the Technic forum, several people had nightmares with olive oil lubricated linear actuators. Worked fine in the beginning - in the end, there was a search for a solvent to get the sticky grease out again ... So don't use it. Regards, Thorsten
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... and that is the true trick. WD40 is not the best choice when you put on too much. Just spray a good amount into a container (e.g., the cap) and wait for a long time. The residual is quite different when using a tiny amount. In the latter case you are getting down to the real lubricating stuff (Molybdenum compounds) rather than a mixture of residual high boiling solvent stuff mixed with MoSx. I don't think there is consensus on the "best" lubricant; I have the feeling that "how much is used" is affecting the long-term performance and thus many diverging reports on performance are posted. Still, I'd go with silicone based lubricants. That stuff is chemically dead, including the solvents used (as neat MoSx is as well). And finally, reducing friction properly will increase the lifetime of an ABS model for sure! You are absolutely right, careful lubrication will prevent possible damage to moving/bed parts rather than adversely affecting them. Regards, Thorsten
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Hi Hoeij, true, WD40 is not the best choice in the long term. ABS should not suffer from silicone based lubricants though. I'd use that (well I am using it). But in any case, after a long time the lubricant may have to be replaced, since all solvents eventually go away into the void leaving some rather sticky non volatile stuff. Remove that with a cloth and put on some new lubricant. We are talking about many months to years here. And use really really little amounts of silicone based lubricants. It does not improve at all when soaking the pieces, in contrast. The stuff goes everywhere and more importantly the residuals build up and eventually make things worse. Regards, Thorsten
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Hi LT, traction problems are sure a hard thing to deal with. I am having them every single time when building an engine. So here is what I have learned so far - flex track is making life NOT easier ... If you do observe excessive wheel spinning, I agree entirely with what you said - it basically is a weight problem. But it could also be some sort of "uneven track, slopes, downgrade problem" (wheel lift off); maybe the loco design itself cannot handle that (most of my locos are too long to have the tolerance of taking serious slopes/bumps issues well). Flex track + bumps is a killer in this regard. If you just have issues in curves (and NOT on straights) than it may depend: Wheel spinning? Yes, wheel adhesion is bad so weight might help. But you may also suffer from serious friction increase - regular LEGO curves are tight. In that case any weight increase may entirely shut down you engine, because the increased adhesive forces could challenged you motive power too much. So it is basically an in-between thing: You need to balance motive power (torque), adhesions forces (weight, rubber bands), and engine design (tolerances in your powered trucks etc.) But I agree entirely with what you said: There is some use for flex track - but I guess other than originally planned up there ... Regards, Thorsten
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Wait, wait, no that fast: You may want to keep some of the flextrack pieces; they are excellent for 1) 9V insulation purposes (loop backs) and 2) the pieces are also very handy to deal with little "offsets" too large to go with the regular curves/straights "bending". Other than that (replacement for regular curves that is): No. 2. Regards, Thorsten
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Hi Eric, thanks for the info! I believe that this system is really a chance to make 9V last much longer (maybe for "ever"?) than originally anticipated - I thought the battle was over and we would have to live with a fixed amount of powered 9V LEGO rails ever produced in this universe ... I am seriously entertaining the idea of replacing my 9V rails in "the back" with the ME system rails and use the resurrected 9V rails for the ever changing play area. I will sure go with the long pieces. Here are my thoughts: Aluminum is a decent conductor, almost comparable to Copper. Neat Aluminum metal quickly generates a rather solid, "closed", and stable (which is nice) oxide/hydroxide layer, which is essentially non-conductive, though. We always have trouble in the lab when using the easy-to-machine Aluminum material in conjunction with the necessity of delivering some mA of electrical current to/via that part. We "scratch", grind, or polish the Aluminum surface before attaching electrical contacts. And even then you may want to check in case of conductivity problems, whether or not the Al joint is causing the trouble. So upon connecting the ME rails, do they "scratch" themselves? Is there some sort of "nose" which removes the oxide layer to some extent? Further, in the back of my layout, I could not care less about labor with the adhesive stripes - I'd just put them on. Is their purpose to increase conductivity? Is there an aging process here as well? The LEGO rails, once connected well (they also need some attention, but not that much and they do have little "noses") do hardly show conductivity loss over time, as far as I am concerned, other people may have other experiences (would love to hear about that!) I am sorry for asking all these questions, nevertheless, looking forward to any input. Once again, that system looks awesome, and you almost have me ... All the best, Thorsten
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Pros and Cons of the various types of trains.
Toastie replied to Madcat2000's topic in LEGO Train Tech
I guess we should divide this discussion into at least two sections: Modifications 1) allowed 2) not allowed. With that: 1) My favorite system the combination of PF with 9V. Having trains running on batteries is still not going well with me, for whatever reason (maybe it looks like riding on a horse, right Swoofty? I love that phrase ... ) Pick-up power from the track, run that across a bridge rectifier into some electronic intelligence (that would have been nice as well, a micro controller type thingy like the RCX/NXT but on much smaller footprint, maybe built into the empty space of the PF LiPo) and from there into motors you see fit - 9V types, RC types PF types or M, XL, mini motors ... Here, double back loops work very well, when electrified sections are isolated with a piece of flex track ... 2) My favorite system 9V when you want to run stuff on less complex layouts - and PF when you are running 8 trains at the same time on shared track sections. I guess the bottom line is: It all depends. All but the RC stuff (somebody must have had too many Aquavits up there in Billund) is nice for its own purpose. Pulling power: I agree with Sava that the PF motors are strong, but you are referring to the XL monsters, right? If so then battery drainage may become a severe issue and we should go to point 1) above ... Best wishes, Thorsten -
nuno2500's Mod to Emerald Night to Get 9V Track Power
Toastie replied to DLuders's topic in LEGO Train Tech
As nuno2500 says: The Emerald is a "grown up train" after the mod. I'd like to add that the grown up train may even keep the nice PF functionality when you run the picked-up power from a permanently powered track system (12V DC) to the LEGO LiPo and from there to the PF receiver which drives a (the) motor(s) Regards, Thorsten -
MOC: Power Functions Intercity Train with Automatic Sliding Doors
Toastie replied to Esben Kolind's topic in LEGO Train Tech
Hi Esben, here is what I think: F - a - n - t - a - s - t - i - c. This is ingenious. No other thoughts ... The first two versions already took my breath, particularly the retracting steps. I didn't think it could get any better. Seeing this now: I was wrong. Wow, I love that entire mechanism. Brilliant. Best regards, Thorsten -
Hi Everyone, got my 10219 set yesterday, put it together. Nice, it is sincerely nice. The engine that is! But hey, we had some ideas before how to do this, right? The really nice thing is: TLC is taking on the challenge. Beautiful. I love the set, well I love the engine. Folks, what do you think about the containers along with the cars? They are outsmarting the engine, don't they? I mean the "flat" beds are almost 8-wide - the engine is - sort of - 6-wide. Man, what about the TTX cars? Those in Maersk blue and 4-wide containers - would have been some revival type of thing. No offense at all! But ... Whatever, the engine rocks :thumbup: And the truck as well :thumbup: The cars are as far as I am concerned. I am prepared ... Rock on, Thorsten
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Hi Tearloch, it is not to me. All what matters to me is a "good feeling". I have "extended" all my trains, the FP7, the GP38, simply because "my" GP40 running an RCX on board needed an extended length to function at all. Furthermore, I always had the impression (I did not do one single measurement or scaling calculation!) that the original model designs may fit in length/width but not in height. They appeared too tall to me at that length. Well the 6 wide scale is one thing, the curve radius another, and my "feeling" may very well mess up any realistic designs. And finally: I love American diesels; I bet the designers of those monsters had a further thing in mind: Make their appearance right - strong that is. The sound of such a real diesel is matching the appearance very well. Have seen/heard them in Long Beach/LA, Kingman, and Denver. Man. I just build or modify my trains so that they resemble that feeling I had when 5 diesels started up to haul a more than a mile long cargo from Denver to who knows ... Regards, Thorsten
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Hi TB Oh well, guess what: 8878 it is for me, modified 9V train motor, automatic recharging on powered track, separate adjustable power output ... I know, I know, has been told before, but you asked All the best, Thorsten
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Hi CLos, it says "9-12 V ~" (alternating current, or AC) on the side. There is a bridge rectifier inside and a voltage regulator, the polarity of the DC current leaving the device is simply changed by hardware pole reversing. I ran my regulator with 12 V DC power supplies and had no trouble, so I guess your 9V (the power supplies you used deliver DC) were simply too low in voltage. Also, you may want to use at least a 0.5 A power supply, the more the better, 1 A is best. I am pretty sure you did not damage your motor or regulator at all. Summary: (at least) 12 V DC, 1 A or 9 - 12 V AC, 1 A will do. Good luck + best regards, Thorsten
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Hi KimT, wonderful review , but how did you get that set? It is available April 1st here and there, April 15 there and here ... So true. On another thought, there are now how many years between those two beauties? And how many diesels have been designed in the mean time by LEGO fans? I sort of remember that when the BNSF was available, the little cheesy slopes were simply not existing ... Oh, and one more thing: In the Maersk train cab the driver cannot look back and figure out whats happening behind him ... on the BNSF he could. (Yes I am picky ...) I completely agree, the moment it becomes available, I am all over it. This set is fantastic. But we should also give credit to all the ingenious builders here on EB and out there in the world who probably contributed - without knowing -to this beautiful design (as far as I am concerned, that is the case!). Thanks again, I want this train even more now! Thorsten
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Exclusive Train 10219 Maersk Train (Exclusive 2011)
Toastie replied to paul_delahaye's topic in LEGO Train Tech
That is what I like so much about the EB community: You make terrible mistakes (as my stupid post) but the community takes care of it. Wow. This is a very good feeling. Thanks a lot, Thorsten- 379 replies
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- Maersk Train
- 10219
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Hi LT, oh man you are so right, but as far as I am concerned this is not about copying so much (at least for me) but about phasing out 9V track, curves, etc. So when The Original has seized to exist and a clone brand continues to make what I desperately want (even if crappy), although we all wanted it from The Original, hmmm, I may want to rethink ... So I suggest to not move this topic, let us just deal with it, I love the discussion! All the best, Thorsten
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Hi Jaster, well, I had another idea and was about to post it, but ... this simply dwarfts my idea. This is incredible. Just took all my stands and realized: Not enough. Guess who is tomorrow at TrU and just simply raides the minifig boxes ... Awesome. All the best, Thorsten
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I fully agree with what you have - very nicely - phrased in your post. Best regards, Thorsten
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Exclusive Train 10219 Maersk Train (Exclusive 2011)
Toastie replied to paul_delahaye's topic in LEGO Train Tech
Hi dhaas, thanks for replying so quickly, you are absolutely right! Just read my post again ... Will try to stay calm ... Regards, Thorsten- 379 replies
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- Maersk Train
- 10219
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