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Showing results for tags 'road-rail'.
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Afternoon all! I'd like to present my latest road-rail maintenance vehicle, that has a trick up it's sleeve... Overall it's a farily normal truck - 6W, a sufficient cab and a flatbed with a utility crane. It also has additional head and tail lights at both the front and rear for bi-directional running, and handrails and a ladder for easy minifig access. But on the other side, strange things are going on... That doesn't look normal. If you've read the title, I'm sure you've figured out what's coming next! This model started out in stud.io, as an experiment to see what I could potentially use the circuit cubes motors for if I bought them. Then I realised I'm probably not going to buy them before Christmas, but I was taken with the idea of a powered road-rail truck... so my thoughts turned to the LEGO clockwork motors. I received one of these Yellow Wind-Up Motors as a "silly" christmas gift last year, so I thought I'd finally put it to some use. I first tested whether my madcap idea would even work - I found that by placing the rail wheels just above the railtops then the weight of the truck rests on the road tyres, and the rail wheels only need to use their flanges to keep it on the track. I was pleasantly surprised to discover it worked quite well! So I set about building a truck around it. The placement of the rail-wheel hinges turned out to be vital - the wheels themselves need to be as close to the road wheels as possible so the wheelbase is short and the tyres stay in contact with the rails. As it happens the wheels can't be lifted as high off the road as I'd like, but it works. This shows how the rail wheels don't actually support the weight of the truck, just guide it around corners. You can also see the top of the yellow motor actually protrudes one plate above the rest of the flat deck, cleverly disguised by the pallet. As mentioned earlier, the truck also has a small crane. I could replace this with a better-looking one, but it turns out keeping the weight down is essential so this simple, light arm will do. It's also possible to hook up a trolley for extra capacity, but again for best performance from the motor it needs as little weight as possible, so this is rarely used. Now, the bit I'm sure you were all scrolling for: the video! I've got my loop of track set up around the christmas tree, so that's where I filmed it - enjoy! As you can see, from one full wind-up it can manage about 1.5 laps of my christmas tree layout, or about 45 standard lengths of track (so a total of 720 studs). Not that impressive really, but still quite fun. Anyway, I hope you enjoyed this, I must dash!
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This excavator is one of many I've built over the years, but the first I've shared. It came about from looking at Google Image search results for "road rail excavator", with a good helping of inspiration from @Hod Carrier's excellent model. It's not based on any single prototype - the build was mostly dictated by what parts I had available! I decided to incorporate a series of strings to control the main boom, the dipper and the attachment, from gears on the side of the superstructure. Elastic is used to return the dipper and attachment when the string is slackened off - or it was, until the one I was using for the attachment split before I took these photos. It should be fixed between the black and DBG plates and at the top of the cylinder, to represent the hyrdaulic ram. The cab took several revisions before I was happy with it. It uses some frankly ridiculous offsets and SNoT, which I'm sure anyone with a wider parts selection could build much more efficiently! Hey, it works, and I managed to include an opening door so I'm happy. The rear side isn't particularly interesting; I incorporated the control gears into the grille areas so they don't stand out quite so much. Finally, thanks to an extra manual hinge point (just behind the spotlights), the boom can be folded up fairly compactly for transport... ... yet still has enough reach and stability to be able to lift and lay track panels. Thank you for looking! And if anyone's interested, more photos and the LDD file are available in my Bricksafe Folder: https://bricksafe.com/pages/Collet22/road-rail-excavators
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Following my recent MOW/Perway equipment back in June, here are a few more finished vehicles for the track maintance fleet. Previous models Semi trailer crane: http://www.eurobrick...showtopic=96053 Bridge Inspection Vehicle: http://www.eurobrick...showtopic=96460 Rail bound machines: http://www.eurobrick...showtopic=96241 MOW Lineup by coghilla, on Flickr -------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------------------- First Up is the SRS LRB17 Overhead line vehicle. It features the same double swivel rear rail bogie to enable easy access to the track from a crossiing or similar. It also has storage boxes on each side which cane increased if required. SRS Road Rail LRB-17 Overhead Line Vehicle by coghilla, on Flickr SRS Road Rail LRB-17 Overhead Line Vehicle by coghilla, on Flickr Full set: https://www.flickr.c...57646132251836/ ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Next is another SRS product. The RB25. It is designed as a module carrier and can undertake many different jobs. It has a 20' pod plus a smaller 8' pod placement points. So far i haven't created the 8' tool sore or the removable knuckleboom crane. SRS RB25 Module Vehicle by coghilla, on Flickr SRS RB25 Module Vehicle by coghilla, on Flickr Full set: https://www.flickr.c...57646132251826/ ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Next is a demountable swap body vehicle. It has a knuckleboom crane and the hook lift device attached. Unfortunately it isn't from SRS so it misses out on the rear swivel rail boggie. Here it can be seen with the large work platform & the Swap body maintenance vehicle by coghilla, on Flickr Swap body maintenance vehicle by coghilla, on Flickr Swap body maintenance vehicle by coghilla, on Flickr Full set: https://www.flickr.c...57646132251796/ ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Lastly is the Brandt power unit. The LDD file was posted here a while ago. I shortened it a bit for my purposes. Brandt Power Unit by coghilla, on Flickr Full set: https://www.flickr.c...57646132251866/ the two module vehicles can share the same pods/modules. Modules by coghilla, on Flickr here you can see them all together: Brick Events Ipswich 14 by coghilla, on Flickr enjoy,
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Following my other mow creations, here is the SRS BRB 7-4 bridge inspection vehicle. Perfect for inspecting those underside of bridges or tunnel roofs. Mobile to any site via road or rail. Actual info page http://www.srsroadrail.se/bridgetunnel-inspection/brb-7-4 Spec sheet: http://www.srsroadrail.se/downloads/doc_download/20-brb-7-4-english Flickr folder: SRS Road Rail BRB 7-4 Bridge inspection vehicle by coghilla, on Flickr SRS Road Rail BRB 7-4 Bridge inspection vehicle by coghilla, on Flickr SRS Road Rail BRB 7-4 Bridge inspection vehicle by coghilla, on Flickr SRS Road Rail BRB 7-4 Bridge inspection vehicle by coghilla, on Flickr
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Here is my knuckleboom crane that was inspired by the SRS KRT20 semi trailer road rail crane. Still need to finish the stabilizers and others bits but i say its mostly there. As road-rail unit it can travel on both rails and the road. This enable it to travel to the work site without holding up precious track time. The crane has a reverse knuckle boom to enable works below the cantinery wires.or OLE (overhead line equipment) expandable counter weight at the rear. The double track wheels at the rear of the truck and trailer enable the loading of the whole unit from any road crossing up to 90 degrees. Watch the video to see it in action. I managed to squeeze a train weight into the trailer for extra support and ballast. This will be the first of a couple of SRS vehicles that i plan to build. The links below are to the product pages and a youtube video i found. Any questions please ask away http://www.srsroadrail.se/downloads/cat_view/20-modulesothers/42-semi-trailer http://www.srsroadra...rs/semi-trailer http://www.srsrailuk...nne-metre-crane Untitled by coghilla, on Flickr Untitled by coghilla, on Flickr Untitled by coghilla, on Flickr Untitled by coghilla, on Flickr
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