lmdesigner42

I wonder if part of the reason for the rumored downsizing of the Liebherr was feedback from the CAT bulldozer. Some fans found that the CAT was somewhat oversized for the functions, as MOCs with similar functionality have been built using just the 5-wide tracks. So maybe TLG thought that bigger isn't always better and decided to downsize the Liebherr accordingly. That theory doesn't explain the price staying the same though .

I could see that happening too, it would make sense for TLG to use the same part in several licensed cars in the same scale this year. This double CV joint reminds me a lot of similar parts used in RC cars.

Definitely the coolest scale Lego motorbike I've ever seen. I can barely grasp how the front suspension works and the integration of the rear driveshaft is sheer genius.

The chassis's looking good so far. Good for you for not forgetting about this project. It's nice to see some of the older short suspension arms in use.

I’m too young be familiar with the original Space Police, but I have many good memories of the newer 2009/2010 sets. In particular, my idea is inspired by the Lunar Limo and Hyperspeed Pursuit vehicles, a black space car with rocket engines and fins. One of my ideas was to have this be an “undercover” space car, with some subtle Space Police badging, but it may just end up being another robbers vehicle. So the name could change. One of the main features will be illuminated, spinning rocket engines, using Lego LEDs and powered by an onboard PF motor and battery. My first draft attached engines to the wings using 4x6 angled beams, but when I tested it with the motor there was way too much vibration from the u-joint angled over 45 degrees. So I had to redesign it to attach with lower-angle #3 connectors. The second picture shows the illumination. Another important feature is deployable tripod landing gear, one leg folding out from the front and two from the back. Below is a prototype of the leg in folded and unfolded positions. The gray beam is the chassis. Other features in the works are a V12 piston engine connected to the PF motor, spring-loaded shooters on the front wings, gull-wing doors, and possibly more lights.

Top notch supercar MOC! Really beautiful bodywork, rotating paddle shifters (), and the most complicated front axle I've seen. Really tempted by the CaDa Master set, even though I just finished building the previous CaDa Ferrari.

I recently did my bachelor's degree in mechanical engineering, and having Lego Technic as a hobby was very helpful. Some of the things I've learned from building and studying others' builds include: suspension types and designs, how transmissions work, differentials (), efficient geartrain and structure design, multibar linkages. Other really cool mechanisms were helicopter flight controls and harmonic gearing.

I am very excited for the possibility of new u-joint solutions for the rear axle, although it is possible to do it with existing parts https://www.nico71.fr/group-b-rally-car/. All in all this looks like a great parts pack.

I am guessing they are hard springs like the yellow ones. I got a 42107 last year and it had the same updated spring coiling. All these new set images at once make a great new year's gift!

Very impressive MOC! Putting in such a complex drivetrain and suspension at this scale is quite a feat, not to mention all the extra features and details you included. Definitely a worthy tribute to Snowrunner. Looking forward to seeing what you come up with next.

Same here. I noticed most of the pins in my 42125 seemed substantially weaker when I built it, and after disassembly have kept them all in a separate box. I'm not sure if I'll use them for anything, but it doesn't seem right to toss them either.

Definitely nice to see all the new small panels, that explains the high parts count. It's clearly an evolution from the McLaren. I really hope they have a proper W16. RWD is understandable due to the small scale, but not a lesser engine. Also, the 1x1 round tile on the steering wheel looks an awful lot like the one from 42083.

Love those tires, both the size and the tread. Something this large seems to be asking for an XL motor for steering (but probably not necessary)

If so, I hope they do a better job on the drivetrain, 1WD instead of the real-life AWD would be disappointing. Also hoping the lines translate well to technic, that hasn't always happened with other small-scale cars.

This model is really great with its combination of appearance, functionality, and performance. Thanks for sharing! Would it be worth using the new 12z spur gear and 20z with clutch spur gear (from the Airbus) in the gearbox instead of the double-bevel versions?

Thanks for the praise @mitx2529, putting functions in a small chassis is hard. There's a lot of other good examples of compact builds in the other contest entries.

We won't know until the reviews are out, but I wonder how they fixed the gearbox problems from the Osprey. I think the fuselage is 2 studs wider, maybe that helps?

19: 10 16: 6 9: 4 3: 3 27: 2 28: 1

Thanks for the positive comments! @Erik Leppen the real rough-terrain cranes are very minimalist, which looks great but leads to rather tight builds for Lego versions. I agree that the carrier looks slightly too bulky, this could have been fixed maybe by going to a larger scale (62.4 mm wheels) or using bricks and plates for the chassis.

25. Mini Rough-Terrain Crane Functions: 4-wheel steering Synchronized outriggers Superstructure rotation Boom elevation Boom extension Winch with ratchet Detailed cabin Final size is 14x14x45 or 8820 cubic studs.

All done! Final size is 14x14x45 or 8820 cubic studs. Time for the entry post. Features include: 4-wheel steering – Smooth 4-wheel steering with steering shaft running through the center of the chassis. Wheels are just the right size to allow a close fit with other chassis parts. Synchronized outriggers – 4 outriggers controlled with a black 12t gear on the left side of the chassis with a 1:1 ratio. Somewhat stiff, but the outriggers lock into the lowered position and lift the chassis slightly. Superstructure rotation – Controlled by black 12t gear on right side of chassis. Also rather stiff, since a 3L axle with stud is used to add friction. Boom elevation – XL linear actuator gives more than enough range of motion, a bit over 90 degrees. Boom extension – Dual winches are attached to the inside end of the extending section, wound in opposite directions. One string used for retraction goes through the back of the boom, the one for extension runs over the boom, around the end, and inside the top. Turning the 12t gear on the side one way retracts one winch and extends the boom, turning it the other way pulls on the other winch to retract the boom. A ratchet is included to prevent collapse when extended. Main winch – Includes separate ratchet and custom hook setup, strong enough to lift 9V battery box with batteries and PF L motor with the boom extended when at the right angle. The low weight of the crane is a greater limiting factor than the strength of the boom. Exterior details – Cabin with seat and control sticks, headlights, taillights, raised engine section, and hazard stickers. Size comparison with 42128: See more pictures at https://www.bricksafe.com/pages/lmdesigner42/mini-rtc

I think the designer did an excellent job on the exterior of the Ferrari, maybe even better than the Sian. In comparison with 1:8 MOCs from 6 years ago, the new panels really help with smooth and clean lines. But, however well-executed and striking the exterior is, I still feel like these modern supercars lack the clean and simple beauty that older generations had. This is not the Lego designer's fault, but I feel like the bodywork and facias are too busy and less appealing compared to something like the 911. So I think I will save my money and see what the next installment in the 1:8 series brings.

Sorry for the very late replies, need to turn on my notifications. @mdemerchant The boom will be extended by a piece of string (to be added) running over the top of the boom, inside, and then tied to the base of the extending section. There's a millimeter or two between the beams which allows the string to fit. @Jurss @2GodBDGlory Thanks for the positive comments on the boom! I borrowed the alternating triangle technique from a mobile crane I saw some time ago with multiple extending sections. I am pretty happy to have something sufficiently strong but only 3 studs wide. Current progress update: Outriggers are now working, all 4 are synchronized and can lift the chassis slightly. I'll need to work a little faster this week to finish in time for the contest.

Good to know, thanks for the detailed explanation @johnnym. It's always great finding unexpected compatibility between different Lego parts.

I like that idea, sounds very strong. How did you brace the 28z idler gear from the diff? It's only 0.5 studs thick if I recall correctly.