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German Luigi
Eurobricks Vassals
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In this video you can see the ramp in detail (from 1:27 on): [media]https://www.youtube.com/watch?v=QPJubrEsCwI[/media] https://www.youtube.com/watch?v=QPJubrEsCwI Please keep this aspects in mind: - Allign the car to the track (at 1:47 in the video I pushed the wheelset sideways to the track.) - Place the track on baseplates. So they are exactly straight. Already small curves have an impact on the result. -
The best ball bearings I have meet German standard DIN 620 precision rating P0 which is equivalent to ABEC 1. My impression: ABEC 1 is a minimun standard that has to be met. I assume from this point on the used grease / oil is more important for ball bearings in LEGO train wheel sets. But as I don´t know the grease / oil that is used in my ball bearings I can´t prove this.
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I bought some cheap ball bearings and checked them. The ones I got are not good: [media]
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Yes, I use 2mm x 5mm x 2.5mm ball bearings, they are called MR52-2Z or MR52-ZZ. I bought 400 ball bearings at once at a local wholesaler. I use the original LEGO train wheel axle, this axle is usually a little bit thicker than the hole of the ball bearing, so I created my own techniques and tools to get the ball bearings assembled to the metal axle. I found some LEGO axles that can be assembled to MR52-2Z ball bearings without addtional tools, but after assembly the ball bearing still can move. If you are interested in these axles please let me know.
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Hello Thomas, why did you add a string under the train axle? If @Legopold had invented his method earlier, maybe I would not have even started with looking for another solution. It took almost 6 months to get my solution finished. First I had to find an appropriate supplier for the ball bearings. The cheap ball bearings feel rolling roughly and I did not want to spend 2€ or more for a good ball bearing. My first attempt with suitable ball bearings was good for heavy cars, but light cars ran significantly better with the orignal LEGO train axle than with my ball bearing solution, and so I had to find a better solution. I compared my ball bearing train axles with the original LEGO train axles using cars that weight 685g. And, no suprise, the car with ball bearings wins: http://youtu.be/QPJubrEsCwI [media]http://www.youtube.com/watch?v=QPJubrEsCwI[/media] Ludger
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See my personal message.
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Crocodile motorization: 88013 is the L motor (from LEGO Ambassador Network) Additional powered up will be available seperately: technic hub (88012) XL-motor (88014)
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My next train will consist of 10 cars, each car weighting about 600g. In order not to overload the locomotive I decided last autumn to equip the train wheel set with ball bearings. At that time I found only the solution using modified train wheel holders from Legopold https://www.flickr.com/photos/162569845@N05/25210157997/ and the solution using technic bricks from legoman666 https://www.eurobricks.com/forum/index.php?/forums/topic/140479-ball-bearings/. My cars are 7wide, the solution using technic bricks requires covering the wheels, but this will exceed 7wide. Using the first method results in a significantly different wheel holder height and I do not like that. So I decided to develop my own solution (if Legopold had invented his improved method https://www.eurobricks.com/forum/index.php?/forums/topic/174266-improved-method-to-equip-lego-train-wheel-holders-with-ball-bearings-no-cutting-of-the-wheel-holder-required/ earlier I probably would not have looked for another solution). This is my result: I milled out the locations for the ball bearings: Except the ball bearings I used only original LEGO parts. For comparison: on the left side the original wheel set, on the right side the wheel set with ball bearings The ball bearings are steadily joined to the axle. Due to the ball bearings the cars now run more smoothly and I do not regret my efforts. Ludger
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Crocodile ready for motorization: According to Promobricks this locomotive is ready for motorization. They write (translated by Google): But what is a locomotive if it cannot run? An upcoming update for the LEGO Powered Up App will retrofit the function. This requires a powered up hub (88009) and a new motor, which according to our information will bear the number 88013. These components are (unfortunately) not included in the set. Front- and backend of the crocodile are 5 wide, so the motor should be 3 wide, maybe a the powered up L-motor fits. This motor is not yet available as single item at shop.lego.com, maybe this becomes number 88013.
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Thanks. To make it easy for LEGO to approve this set I designed this train similar to LEGO train sets. Freight train 60052 has an engine, two railway cars and two other vehicles. This set consists of 870 parts. My project has also an engine, two railway cars and, instead of other vehicles, a carriage. My set consists of 940 parts. If LEGO creates a new part slope brick curved 3x4 for replacing 4 slope brick 3x1 the number of parts would be reduced to 860, so my set would cost round about as much as set 60052.
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Hello, I would like to present my latest train MOC: a German steam engine. Steam engines appeal different from country to country. In Germany most steam engines had a red wheel undercarriage, steam engines in some other European countries too. For those who like steam engines completely black: all parts for this engine are already available. For those who like a red undercarriage: please support this set on LEGO IDEAS (https://ideas.lego.com/projects/133465). The steam engine bases on the steam engine https://en.wikipedia...i/Prussian_G_12. This steam engine was a goods train locomotive, and as goods train locomotives have small wheels for high traction force I used small LEGO train wheels. I did not like the plain, high gloss surface of the tender, so I decided to take bricks with studs on sides. These studs symbolize oversized rivets. I watched LEGO sets like freight train 60052. This set does not contain only a freight train, it also contains a truck and a fork lift. So you can transport something with the truck to the station, load it on the freight car and take it to the next station. At 1925 there were only a few trucks and no fork lifts, so I decided to add a horse carriage. Now you can play as you can play with freight train 60052: you can transport something to the station, load it into the freight car and transport it to the next station. Ludger
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German Luigi replied to German Luigi's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingOutdoor video: Hello, During last summer (in Germany it was 2013 ) at a blue shining sky I recorded an outdoor video of my demolition excavator. Outdoor with bright shining sun power functions remote control does not work any more, the sun in much stronger than the remote control. So I placed myself in a way that my shadow layed always on the IR-receiver. Once I leaned forward too much and so I got on the video. But thanks to video editing software I disappeared from the video. Recording the video took only one day. But when watching the result I got annoyed by too many insects crossing the video. So I decided to remove them. Removal of flies in corners of the video is quite simple: the camera was fixed on a tripod and so I had a static picture. I just had to freeze the picture detail without flies and placed this across the video. And the flies are gone. But flies close to the demolition excavator are hard to remove: I had to retouch them out of every picture at a frequency of 25 pictures per second. This takes really long. In total I removed insects from more than 1000 sequences. And so it took me 1.5 years to finish this video. I recorded in total more than one hour, but watching this would get borinig. So this video consists predominantly of 5times fast motion. You can watch this video on YouTube: Ludger
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German Luigi replied to German Luigi's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingHello Tim, when I look at your model I know you faced already a lot of these challenges. I assume as a result you decided to replace linear actuators by tooth bars made of gear racks 1x4. Ludger
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German Luigi replied to German Luigi's post in a topic in LEGO Technic, Mindstorms, Model Team and Scale ModelingHello, I recorded the video at the beginning of the exhibition. At this time I had no experience at all in controlling my own excavator. So it took quite long to remove the first plates. In general the excavator had to be powerful and controlable precisely, this results in quite slow movements. Ludger
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