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Showing results for tags 'Caterpillar'.
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Hi guys, I start this new topic to show you my caterpillar truck in his final form. It took me about five months to finish it! It's powered by one BB, two XL motors and one m motor for steering. The frame is based on Ingmar's mack granite frame but only the rear part. I've changed the front because off the hood's attaches that limits me. The cab, Hood and bumper are all removable. Here's some photos of the truck: Thanks for reading! Do not hesitate to comment! -
I want to share with you a model of a Caterpillar. Not of the yellow colored Machinery Brand but of a more natural kind. I started with the idea of the "wentelteefje" by Escher but as that proved to complex regarding the feet movement, it evolved into a more classic Caterpillar. It is operating autonomous with an XL-motor, a switch and a winch/rope mechanisms to operate it. Best way to see it's real operation it by viewing the youtube video. More information and free instructions on how to build it can be found on rebrickable: http://www.rebrickab...ous-caterpillar Hope you like the model! Martijn -
This is not one of my most recent builds but I never published a video of it. Now I took some more indoor shots as well. I started to build this dozer back in 2006 to be laden onto a Renault Magnum. First the model was driven by a RC unit, from set 8366. It ran OK but I didn't like the receiver and it took to much space in the model. Later I made my own control unit but that one was wired to make it possible to get the dozer blade operated by pneumatics. Later I decided to build in some PF stuff. My mate Barman helped me out with designing a compressor which is combined with the switch. I needed two of those and they just fit in the frame. I built in some PF receivers and gave the 9V RC motors another position in the frame. They're now put vertically. The looks are still the same as I was satisfied with it's appearance. Please check the videos: https://www.flickr.com/photos/51102529@N07/13354349433/in/photostream/ https://www.flickr.com/photos/51102529@N07/13354279655/in/photostream/ And the other pics I put in my Flickr stream: https://www.flickr.com/photos/51102529@N07/sets/72157642793053164/with/13354279655/ -
Hello, after years of only reading occasionally at Eurobricks it is time to present my latest MOC at Eurobricks: A caterpillar 365C ultra high demolition excavator. (If the youtube video disappeared: )It started with excavator 8043. But I did not like the bucket, because playing with this bucket is difficult. In most cases LEGO bricks will not get into the bucket but will just be pushed away. So I searched for alternatives and I came across demolition excavators. A LEGO demolition excavator would be great. And this demolition excavator should be able to demolish a LEGO house, this would be incredible. But is this possible? I realized quickly: this is not just a 8043 modification, this requires a complete new design. I started with the jaw. This has to be very small. If the jaw is too long, it will be impossible to breakaway Lego bricks. And the jaw must be turnable about 180° to demolish ceilings and walls at different heights. The clamping force should not depend on the angle position of the jaw, bricks should not drop from the jaw when the jaw is moved. After some trials I found a solution using a string (well visible in the video). I built a prototype with this string solution and made a trial: will the clamping force be high enough to enable the jaw disassembling a 1x8 brick? Yes! The clamping force is just enough. So I could answer the question of principle: it is possible to demolish a LEGO house with a LEGO excavator. As the next step I designed the bucket arm. This should contain two power function M-motors and friction clutches for closing the jaw and for moving the jaw. For both functions maximum power is required without overstressing the M-motors. The bucket arm should not be wider than 5 studs. I took some time, but the design of the bucket arm was not so difficult. Then I designed the undercarriage. I adopted the design principle of Jurgen Krooshoops 8043 modification and put the gear reduction into the undercarriage. In comparison with the undercarriage of the 8043 I designed a considerable longer undercarriage. Now the most difficult part: the upper structure. Main task: lifting the boom. As a first trial I used three linear actuators parallel. The upper structure was made mainly of liftarms. During the first trial I heard a lot of clicks, but the boom did not lift a little bit. I enforced the gear box, but all subsequent trials just ended up with ugly noises. The required force for lifting the boom was just too high. So I increased the distance between the lower linear actuator bearing point and the boom bearing point. So there is less force necessary for lifting the boom. But now the adjustment range of the linear actuators is not sufficient for lifting the boom vertically. So I added two additional linear actuators to archive the required adjustment range. In total I use now 4 linear actuators for lifting the boom. I designed the gearbox inside the upper structure following these principles: - use of technic bricks instead of liftarms wherever possible - bearing of gears on both sides of the gears, it must be impossible for gears to move apart Next trial: the XL-motor is moaning a little bit, but the boom is lifting. Hip, Hip, Hooray! Now I started with detailed design of the upper structure, finally 2 XL-motors, 4 M-motors, 4 IR receiver and 2 battery boxes have to be placed inside the upper structure. Two battery boxes? Yes, I need the weight of two battery boxes as counterweight and the electric power should last for at least one day during an exhibition. As I did not have all required parts in yellow I built the excavator with available parts. So right now the excavator design was finished, but the excavator was multicoloured. As next step I built the excavator in ML Cad. During this step some improvements were implemented. After finishing this I knew exactly which parts I needed and I bought them. And then I did something I really like: building a MOC following a building instruction I created on my own. Last I created stickers and then my demolition excavator was complete. This demolition excavator was designed for demolishing a LEGO house, so I needed a house for demolishing. Of course not a single family house, I needed a tower building. Based on pictures of real tower buildings and a reasonable floor plan I built a tower house in ML Cad. And then I bought the worst available parts, the house must not look like new, it should look like ready for demolishing. Building the tower building according to the ML Cad building instruction was not difficulty, it just took quite a lot of time as 11,000 parts had to be assembled. At the end tower building and excavator were ready just in time for the LEGO FanWelt Exhibition. Kind Regards Ludger PS: Demolishing the tower building with the excavator is fun for hours. -
It has been a little quiet in Thirdwiggville for the past couple of months, but some projects are finally being completed. I present my next MOC the CAT 586C Site Prep Tractor. More information can be found at thirdwigg.com. The MOC features: Four wheel Drive Steering Rear Pendular Suspension I3 Fake Motor Cooling Fans Working Mulcher Drum Mulcher Lift and Tilt Mulcher Guide Bar Mulcher Entry Gate Rear Winch Opening Engine Hatches Opening Driver Doors See video .The driveline is here. And a view of that rump. Two more MOC coming in July stay tuned.
