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Dear All, after so many modding activities regarding the Crocodile it is hard to believe to be able to add something new to it. Don’t know whether this is any “new” – if not, moderators please remove this thread. (Also, please excuse my crappy photography - I am not good at this nor I believe is that tiny camera I have. Also, the LDView screenshots were made without much passion ...) Here it is though: I don’t like blind drivers. (I know that in many cases they are simply mandatory – steamers with more than four driving wheels attached via connecting rods and there we are, particularly on TLG's original curved track. I know only one exception from that: Ben Beneke’s BR23 LEGO replica: This one features 6 driving wheels; they are all flanged and each pair of three wheels is connected using LEGO Flex system parts. In addition, a split center axis is used so that the corresponding center driver is moving inward when going through curves – it is a brilliant solution) With the Crocodile though, the “noses” feature only two drivers connecting via one rod that in addition allows some articulation at the wheel - rod joint. So all-flanged drivers could have worked – unfortunately though, the pivot point of the bogie is not in the center but far out between cab and nose. Blind drivers are thus used accordingly for the pair of drivers closer to the pivot point. And I don’t like them. Particularly because my LEGO layout is rather crowded. So I decided to put some track up the sloped wall – with some curves to see the crocodile meander about – I mean this is what crocodiles do when preying … and then you just see it all the time: The blind drivers are “leaving” the track. Solution: Moving axles, as has been demonstrated in countless contributions here on EB and elsewhere. I decided to articulate the axle close to the cab, which requires narrowing the 4 wide frame – I used a two wide base (three would work as well, but I simply could not figure it out). (Note the red drivers on the side facing away from my chair - will try to get the black ones some other time - do they exist as separate part at all? Need to check) Here are some LDraw screenshots: Also, as friction leading to upward pointing forces goes up quite a bit, I made some room for some "weights", which are required to counter these additional forces. So there are 10 x 1 Euro cent and 4 x 50 cent Euro pieces in each nose, considerably increasing the value of my croc. Without the extra money, each nose weighs about 145 g (not including the pony truck) – with modifications plus the money 210 g. The values of my crocodile is thus retails price + 4 Euros and 20 cents. (Well, I had only 7 50 cent coins that day - the one in the photo is a Swiss coin of almost the same size ...) Further modifications: I simply did not like the coupling offset between noses and cab, tilting the nose downward to the front. This maybe intentionally. But when you look directly at the Crocodile's noses in front of your own nose all day – I had serious sleeping problems. Solution: Not using the 4x4 Technic brick + pin (popping off all the time drove me crazy as well …), but 1x2 plates with tow ball, which conveniently came with the extra 40411 set. That required some modding of the cab frame as well – in addition to the flanges of the new drives close to the cab needing more space for pivoting. So the slopes had to be changed. The color of the axle pins (whatever that color is - sand something) of the pony truck wheels also got me mad. They are partly hidden by the bley 1x2 plates with ladder, but again my eyes are level with the Crocodile … plus I also noticed that on most pictures I found on the web of the II version the “ladder” is missing at all. So I redesigned the truck as well, now featuring a 6L black axle and no ladder. And in addition many of the implementation of previously reported mods: @Sérgio's greebling (soo nice!!!) very slightly modified, and @Sérgio's solution for closing the gap between cab and nose (plus some very minor additions, see pictures above and LDraw files, link below). Want to add the wheel guards as well, as @Sérgio and @Duq have demonstrated. What is that "plate"/slope called, you are using? What else? Ahh – changed the frames to black, as suggested by others. Not entirely because the contrast between the black wheels and greebling is then gone. So I left a few parts in dark bley – simply to show (and: because I did not have them in black). And: I removed all but 2 rubber bands on the cab. None on the wheel of the noses. So here she is: That was it. As usual, I really learned a lot from you guys. Thank you all very much for letting me again dive into the LEGO world of bricks! Forgot: Yes, it negotiates curves (S type) very well. No idea about switches, but my crocodile will only drive back and forth "on the wall", disappearing behind books and magically reappearing … that needs some BLE programming – we will see. In that regard, a lot is going on in the Mindstorms Forum! (Here are the links to the LDraw files (really very rudimentary, just for my documentation. Deep linked - as the folder is not moderated yet http://www.brickshelf.com/gallery/ThorstenB/9VTrain/Crocodile/LDraw/nose_bogie.ldr http://www.brickshelf.com/gallery/ThorstenB/9VTrain/Crocodile/LDraw/ponytruck.ldr) All the best Thorsten
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I wrote a review of the set on 1000steine.de: https://www.1000steine.de/de/gemeinschaft/forum/?entry=1&id=439107#id439107 This is in German but you can use an online translator: https://translate.google.com/translate?sl=auto&tl=en&u=https%3A%2F%2Fwww.1000steine.de%2Fde%2Fgemeinschaft%2Fforum%2F%3Fentry%3D1%26id%3D439107%23id439107 Link to some videos from the train in motion:
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Classic 1980s-style passenger train with streamlined GG-1 style locomotive - real world MOCs
Murdoch17 posted a topic in LEGO Train Tech
The coaches are inspired by train sets 7715 / 7718 from the 4.5 Volt era in the early to mid 1980's. The Lego Land Railway runs the train from World City to Heartlake City with stops at Classic Town, Paradisia Coast, Duplo-Ville, Ninjago City, (where the electric loco is replaced by a steamer or vise versa for the rest of the trip) Fabu-Land, Technic Town, Fort Legoredo and the Castle Realm. (with extensions into the Forest of Failed Themes and the Outer Dimension of Galidor at certain times of the year.) As both sides are the same (even for the headlamp color), I decided to take only one picture of the ends of the loco. This model was inspired by both a 1999 version of the engine built by Flickr user legosteveb user and a couple of digital-only designs by @Sunder. The pantographs on top are inspired by set 10277. (Crocodile locomotive) Unfortunately, this is as low as they go because I built them from pictures and didn't do it right. (Oh well!) Fictional history: This electric engine (number 9028) was originally designed as a un-streamlined freight workhorse for use in the mountains of the Western half of the North American continent on the electrified section of the Lego-Land Rail-Road mainline back in 1925. The engine uses a 2-C+C-2 arrangement, which means single frame (really, it's split in two in the middle, as the curves were too tight to do one single piece, but that's just too technical.) mounted upon a set of two axles unpowered (the "2") and three axles powered (the "C") hinged with the ball and socket to another frame of the same design (the +). The unpowered "2" axles are at either end of the locomotive. As you can see, the three axles in the middle two sections are connected by drive rods. After serving dutifully for around seven years as a freight loco, the engine was upgraded to a fully streamline-shrouded passenger unit after another of it's eight-strong class was written off after a accident with a stuck Shell tanker truck blocking a road crossing. (Thankfully, the steeple-cab design protected the crew, who survived!) The 9028 was also given a higher gear ratio in it's trucks, to allow for the higher speeds that the passenger schedule called for. The engine's class has a reputation as a tough hauler, taking care of almost anything thrown at it in freight service, and plowing through the most impossible schedules as passenger engines. There have been times, however, when they have been helpless: In January 1952 engine 9030 and of the premier Lego-Land Rail-Road trains (The City of Heartlake) got stuck in the Rocky Mountains due to a large snowdrift on the tracks and 100-MPH winds in blizzard conditions. They got boxed in, and were stuck there for six days before rescue crews could reach them. (This actually happened to the real world City of San Francisco train in the Sierra Nevada's in January, 1952. The rotary snowplows froze to the rails trying to get through!) (picture coming soon) The engine features moving panto-graphs for picking up (imaginary) electricity from the overhead wires. They are both in the lowered position here, though normally the one closest to the train it was hauling would be used. The exception to this was if the rear panto-graph was knocked off or damaged by overhanging debris, which the engine would then have it's lead panto-graph raised in order to limp to the repair shop. This baggage / passenger car is called a combine which is short for "combination". All the doors can open on this train, even the sliding ones shown here. The three 1980's-style coaches are identical in every way. The observation car, the rear-most coach on the train, features a platform for sight seeing. Comments, questions, and complaints are always welcome! EDIT 12/17/19: Added revised real life pictures. Comments, questions and suggestions are always welcome!
