Jundis

First of all I wouldn't participate, even though I'm in awe when I see videos about it. Also there is a big problem here: GBC itself is like a big contest as there is a strict rule (move balls from A to B in a complex manner), and then every builder has be as creative as possible. Maybe if there were other rules, e.g. limited amout of pieces, staying in between a certain space and so on, it would be more interesting but it wouldn't be exactly a new thing.

Would be my guess too, I love technic models in the range of about 500 ... 1500 pieces as they tend more interesting than the smaller starting sets and more playable than the bigger shelf sets :-) Oh yeah. I hope for a Claas Axion or Arion with Zetros wheels in front and Xerion wheels on the back. As someone mentioned before, bigger Fendt tractors have mostly very big front tires. BUT: Both Fendt and Claas have red rims ;-)

I think it really depends mostly on size and also the intention of the built. For a small build it makes no sense, as many components are both for structural integrity and appearance. For medium and large builds modularity really helps to prevent a complete redo of the model if something doesn't work out as intended. Also there is way stronger tendency that some assemblies are for structure, function or appearance. But when it comes to low weight (or of perfection in economical use of as few parts as possible like your builds @jorgeopesi ;-) ) modularity has no place. In the past two years I work with way more assemblies than in the beginning.

Can you show us a picture of your assembled wheel?

About the change of the driving sprockets in contrast to the original: I think this surely has to do with the balance of the model. MK puts a lot of effort to get a really good steering in his models (42043, 42100, 42128 and now 42131). If the upper sprockets where driven, the whole model would be front-heavy. And maybe it would be too difficult to place the V12 engine in?

The older type yes, but the newer one with the slit on the top has already been used in the Creator Porsche 911 ;-) Combined with the spectacular underwhelming 6+ manual is showing us that the "premium" flagship sadly is just made to lure in new costumers with a bigger wallet.

Really fantastic looking truck and truly in the spirit of Model Team! Even if you don't pay that much attention to steering, I agree with @syclone to add pivot steering, turned wheel always look cooler with more angle ;-)

What a mechanical marble! I would never have guessed that a MOC of a rope excavator would have such smooth and fast movements. This is exactly what I would hope for as a Lego Technic "Classics" set, where older but technical more complex/interesting machinery would be represented.

Oh man I am just searching for a nice rear suspension and the idea of the rubber part as an cushion is brilliant. :-) Another brilliant thing is the fixation of the fifth wheel, so smooth for clicking in and out. Can I ask what gear ratio you used for the driving XL-motos to the wheels?

I really admire your MOCs as you try do realize all the real-world functions at ones and really push the boundaries. But this actually is just too much for plastic bricks I guess :D Because of the size of motors and actuators, the whole structure has to be bigger, increasing weight even further. Just out of curiosity: How much does this MOC weight? My guess is > 20 lbs / 10 kg?

My guess is, that this would hinder the turning of this thing in such a manner that Lego decided to make use of this trick. Ground pressure is a thing only relevant for real life machines, not Lego models (in the weight class < 10 kg).

Oh yeah, that would be really neat, but at least one can pick at least the wheels or lets say 50 additional parts. But that really puts high pressure on the mods, as many will complain about the available parts... The checking via a .ldd or .io-file really is hard. Maybe there is some sort of "gentlemans agreement" or the participant have to check the other models (just a link to the file, so everyone can check).

More functional vehicles and less show vehicles. 'nuff said.

Exactly. Some ideas: 1. Limited amout of parts. This really comes down to creativity like @SaperPL said. There are great sets with < 300 pieces. Great examples are 42061, 42084, 42102 or even 42116. 2. Downsizing. Choose a technic set and scale it down at least 1:2. 1+2: Combining both ideas ;-) 3. Tractor Tractor TRACTOR! Build a vehicle using at least 2 of the tires with tractor profiles (now, there are 3 sizes available). Doesn't have to be an agricultural vehicle, but maybe also truck, tractor pulling, exploration,...

Less blurry: https://www.facebook.com/LEGOGermany/videos/258512985952215/ This really looks great, if it only had more functions... *sigh*

In this case, the width of the tracks fits quite nicely. According to the official spec sheet, the track width varies from 710 ... 915 mm, as the real machine has different track sizes for different working grounds. According to the pics, TLG represents the narrowest blade available, which has a width of 5584 mm. Counting studs on the front LBG lip + 1 stud per side and given the angle of the black part on the blade's sides, overall it's 49 studs. So 1 stud is about 114 mm. Track width should be 6.22 ... 8 studs.

Really nice! I hope TLG considers to put twin-tires on trucks in this scale for now on. Looks so much better!

Depends on the model I guess. Sometimes the designers really have a strong feeling for the model 42100, 42115, ... so they push these sets. I guess the 42131 will get the same treatment before release.

On the Jaguar Terra Trac, the front idler is lifted during turning to reduce the area. Not sure if the Lexion also has this feature, though:

What a glorious MOC! Even so minimalisticly built with very few panels but just enough not to be a skelleton look.

Nice model :-) Did you consider to stabilize the arm with technic bricks to prevent the wobbling? ;-)

Great MOC, the power for it's size is really incredible. But I agree with @MajklSpajkl , maybe there is some space to include a 2-speed gearbox? There are some details on the cabin which are just so catchy, especially the panels for the mudguards and for the lower front end. :-)

I think @Jim stated this one in the information topic for the contest. I really like this idea. But it struck me, that so little people voted in contrast to the entries. That's really strange... I even had the feeling that some people with a TC model didn't vote cause they couldn't vote for theirs? Don't want to go through the posts. As for new contests: We've seen that is really has been highly controversial discussion about the rules of this very contest. Maybe the next contest will be a little less optional regarding size/type/parts. Or will it be the long-discussed GBC-contest?

The contest surely was one of the most ambitious and most competitive so far. Also the variety of models has been bigger than ever. But the winners entries weren't that big if you'd ask me. @Thirdwiggs original 8854 has 500 pieces, @Seasiders 8848 only 398. Even @RiGis 8872 has only 763 parts. If there will be a GBC-Contest, I am completely with you to have a part limit, but in TC20, this would have hindered creativity as great build wouldn't even be considered.

Thanks again for this great contest and all the effort @Jim & @Milan ! Also congratulations to the winner, which is really well deserved :-)