Sergiu

This guy certainly has a lot of talent, all the engines are great and very useful if you want a more realistic one. I just wish he also did an inline engine design.

I've never had serious injuries caused by LEGO, but usually when I have to assemble or disassemble something very large my fingers start to hurt or I get chipped nails because some parts are too hard to separate or quite sharp.

I just bought about 1300 pieces from BrickLink for a new MOC, a large Trial Truck.

Very impressive model, the details are great and it certainly looks just like the real one. Good job!

I usually get a new MOC idea when I see an interesting vehicle that would look very well in LEGO, but I also like to take inspiration from other people's MOCs, to see how they solved certain problems that I may encounter in my creations. Sometimes I come up with my own ideas, though this is very rare.

Interesting MOC, it seems to drive and steer very well. If you want to make it 4WD you should have the same wheels on all axles, otherwise you will have problems when you drive it. Also I suggest you that you put a central differential in the car, if you do not plan to use it off-road. I'm sure it'll be great when it's finished.

Here is a video with the 8043 Excavator in action:

My favorite themes are: Technic, because you can do things you couldn't do with normal bricks Model Team, great looking and functional models Mindstorms, I like to make working robots and to program them

I almost always open a new set when I get home so that I have time to prepare to assemble it. For really small sets I prefer to open them when I get in the car, but I only build them home. I am so anxious when it comes to opening a new box.

I display all my MOCs in the living room so as everyone can see them and I also keep all of them assembled, because I put a lot of effort into building them, but this is a very expensive decision.

The misaligned rack is not a problem in real life, due to the fact that the rack doesn't have a very long travel and the gear has a big backlash, thus being able to mesh very well with the rack, despite the misalignment. I used a gear rack this way in my MOC and the steering worked flawlessly. I agree, the tractor's front axle seems quite strong and well designed, but it may not be suitable for some MOCs, this one having a higher rotation point then Intact's one, so it's good to have more designs to choose from.

This battery box uses 6 AA batteries, which are very easy to be replaced because the whole cover can be removed. Also if you want you can replace this battery box with any other you want, but you will need to modify the set a little to make the new battery box fit in and also make sure the new one has the right type of cable connector. I hope this helped you.

Great model, I like how you managed to put all the functions inside. Very well done.

Amazing MOC, the design is so smooth and realistic and it seems to be very well built. The actuators are especially interesting and quite unique, but all its features are impressive. I can't wait to see a movie of the excavator in action. Great job!

Very nice MOD, the Crane Truck certainly looks better with double wheels. The flatbed is also very interesting and makes the truck stand out. I think I'll try to make a similar MOD if I buy the Crane Truck. Good job!

You should try to look at photos on Brickshelf, there you will find enough images with complete drivetrains. A XL motor will be powerful enough to drive the truck, I have a 2 kg truck driven without difficulty by a XL motor, but it is difficult to build a transmission strong enough for this motor. Also it is recommended that you don't use any universal joints, they are likely to break if high torque is applied. For steering you should use a safety clutch, so as not to damage the motor when the motor reaches the end of the gear rack. You can also use return-to-center steering. Here you can find a very useful article about this type of steering. Making the truck remote controlled with Power Functions is very easy, you just connect the motors to the receiver and the receiver to the battery box and it is ready to go. I hope this helped you.

I used to buy the biggest sets available that year, 1 or 2 for my birthday and one for Christmas, although now I think I'll buy just one set per year because I made a lot of expensive Bricklink orders for my MOC.

I think I'll submit a photo of my 4x4 truck although I'm not really sure it fits the theme. I just I hope I'll manage to repair it and take some new photos before the deadline, otherwise I'll submit an older photo.

Milan, unfortunately I don't think the rear axle can be moved forward, because there isn't a lot of space left, but the truck is scaled to the dimensions of the Mercedes Axor 1833AK, so I think this is the way it is supposed to look.

The truck features front and rear pendular suspension, but the front axle has a very small degree of articulation due to stability problems. Both front and rear axles use Sariel's 3 studs wide differential bracings. The tipping bed can be tipped almost 65 degrees although I am not very sure it can tip any load because the Linear Actuator is mounted very close to the rotation point of the tipping bed. Other features of the truck are the front and rear working lights, the V6 engine, which has it's own PF M motor but it isn't connected to the battery box. Also the cab can be tipped, and the doors can be opened, but the interior has a pretty basic design. Here is a short video of the truck, highlighting some of its features: name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src=" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385"></embed></object>"> name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src=" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385"></embed></object>" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350">The truck has pretty good off-road performance, but the 8 tooth gears slip quite a lot when high torque is needed. The last feature is the use of Ackermann steering geometry, which doesn't really help but it was the only to build the steering. Here you can see all the photos of the truck. I hope you like it.

Amazing helicopter! The details are impressive and very well done. The folding rotors and tail are also great and make the helicopter look more realistic. Good job!

For me the hardest LEGO set I have ever built was the 8421 Mobile Crane. It took me almost one and a half days to complete, but the build was great and it would have been even better if the bags weren't numbered.

Amazing front end loader. The functions are impressive and work very well. The design is also quite good, the yellow beams in the front look much better than the gray ones. Great MOC!

Very nice MOC. The design is interesting and well done. I like very much the fact that the car drives so well and that the drivetrain is reliable. Good job!

Very nice design with interesting parts usage especially at the front of the car. The functions are done very nicely and I like very much the working steering wheel, but the beams used in the front axle are a little too long. Overall, you built a great MOC.Good job!