Timewhatistime

By this historical document, the tracktor has gained some (nearly) true roots from the great 20th century technical progress. What a nice coincidence that this footage could by found in the video vaults just when needed!

The driver looks like a weird scientist or a quirky inventor from a Jules Verne novel. He fits the vehicle very well.

Very good idea! The Z kinematics have given me some sleepless nights (way before 42209). I wonder if there is a better method than trial and error... There must be a way to solve this problem analytically: given the geometry of the bucket and the range of the mini-LAs; with the pivots and the levers' lengths as variables. Does anyone know?

This MOC has become clean by leaving the mockup-state behind and now owns a lot of style, thanks to the gentleman with his hat. Nice idea, full of mechanisms AND creativity. I really like it.

Let's be more generous! The blue pins surely are original Lego, so who cares about the weird green and brown parts and the tyres... Turning to a more serious attitude: Sticking to Lego would be a good measure for a contribution in a Lego forum. There are many reasons... just to mention one of the most striking ones: The challenge is to build MOCs with the somewhat "limited" (over 80,000 parts!) inventory Lego offers. By adding third party parts, the main point gets lost.

I have doubt that the driving rings will engage properly due to the restricted space for the levers.

Nice black-white-lime-yellow-red-blue-orange-turquoise-lbg-dbg color scheme! That surely contributes to the "High-Realism".

42120 is a hovercraft.

When the battery is empty, but the job has to be finished...

Generally, I prefer pure Technic without too much System parts... but I love the bellows of the joysticks (microphone) simply made of 1x1 round plates. The compact drivetrain for the turntable is nice as well with its 1L wormgear and the combination pf 20t-12t double bevel gears meshing directly with the turntable.

This gives new hope that Technic might find its way back to cool functions driven by maaany gears. Very well done, very impressive @R0Sch! The usage of the clutch is something we have seen many times whenever to axles are routed through one turntable. But I think we never saw a 8t gear meshing with a 28t gear in an official set, did we?

"Weird and interesting" - these are the right words to describe this nice MOC. The combination of old and new parts is great, and by the somewhat rare 3x7 bent liftarms in trans-red one can deduce your "active" time in Technic.

Maybe the single motor isn't strong enough to drive more than one function simultaneously? So the setup with a single lever avoids this issue. But I consent, a multi-function setup like in 42042 would be more fun to play. I can imagine that there will be some early MODs which will provide exactly this setup.

The very small panels (#7 and #8) are new in trans-red. Nice!

Great work, @R0Sch!

You are right, there are white 3x3 T-shaped beams - attached to some black beams (visible in the view directly from the top). The "extra parts": There are two 3L lbg beams at the front axle (at the same width as the white 3x3 beams). I'm not sure whether white and lbg beams are connected by black 5L beams on each side... there has to be some space for the two black 4L thin beams which hold (and tilt) the grabber.

Does anyone have a clue about the two white liftarms providing the little grabber vehicle's base? The standard 3x5 L-shaped liftarm doesn't seem to do the job, does it? Speaking of this grabber vehicle: It looks like a fun mechanism and can even be tilted (by the well-known combination worm gear + 8 t gear).

Yes, you are completely right. My fault! Thanks for your correction. This mechanism is called "Z-kinematic" (at least in German).

The bucket will tilt in the degree the arm is lifted; there will be no compensation in this movement because all the mini-LAs are located on the same axis.

On some of the image the yellow maccaroni parts (front axle) are atttached to the main chassis (below the cabin), on others they are torn half way out, so that a red axle connector is visible. In effect, the 5x7 frame (around the front differential) is misaligned (tilted downwards in respect to the rest of the chassis). TLG should have engaged some pros for taking the photos... or at least to assemble the set...

This connection is quite creative and new. In principle, I like it. However, the crane's load will rest on just two half beams (i.e. the black 87408 connector). Moreover, the second stage of the boom is held in place by a single 4L axle with stop (going through the connector). Considering the massive first stage of the boom, this solution seems to be odd and lacking stability.

TLG still doesn't learn and ranks symmetry higher than accuracy. The arm will be (slightly) twisted when being raised. It's the well-known issue with the 20t bevel idle gears getting turned counterwise...

If this is the design of a lunar outpost, I prefer staying on earth.

The quarter ellipse (probably 2x7) in dbg in the bonnet is a new part, isn't it?

The mini-LA's design has been slightly updated.