Sariel

One of my online tools for AFOLs, the LEGO Wheels chart, has received a major update, including: unified, highly detailed 3D images of all wheels 11 new wheels added dead links fixed rim/tire combinations updated overhauled code for easier maintenance The list of wheels now includes wheels released in first half of 2021, and the number of tire/rim combinations now reaches well over 200. The tool is available free of charge at wheels.sariel.pl If you’re an Android user, you may alternatively want to consider my free ad-less mobile app Sariel’s Wheels Table.

I guess, but it's probably a fairly small difference.

I think it's a bit too similar to the T-72 which I've already built, so no. I've developed this mechanism for my T-34 model, even though the real T-34 actually uses a simpler steering system, with a differential and brakes.

Here's a mechanism for controlling your LEGO tanks that may be considered a good alternative to subtractors. It splits a single driveshaft in two and then puts each of these two shafts through a small 3-speed remotely controlled transmission. This effectively allows to drive at two different speeds and to turn with two different radiuses. It’s also fairly easy to add a transmission and/or a piston engine between the drive motor(s) and the mechanism, and – unlike with a subtractor – they will work both when driving straight and when turning. The primary advantages of this mechanism are realistic controls (with a PF remote you can operate levers just like in a real T-55 tank) and ability to use a transmission and/or a piston engine at all times. There are no differentials needed, which is another advantage because their inner gears can be broken under high torque. The disadvantages include the need for two PF Servo motors to control the mechanism and a larger size and higher number of specialized pieces when compared to a subtractor. Free building instructions: http://sariel.pl/downloads/

So, let's put a new spin on the whole "Can LEGO fly?" debate, shall we? ;)

I can confirm that I've heard nothing about the new Technic wave from LEGO yet. The "review window" has been moving around a lot lately and seems to depend on the licensed partner. For example I got the McLaren set very early and it was initially embargoed until early December, but then McLaren requested moving it to January 1st, which was way too late from the market's point of view.

I present a little off-road experiment of mine. It's a large-scale model of the Soviet Ural 375D heavy-duty military truck, a truck I've had the pleasure of driving last year. The model's look is somewhat compromised but it achieved the primary goals, which included stress-testing the planetary wheel hubs, the new differential and my 4-speed remotely-controlled sequential transmission. I'm happy to report that none of these components failed and the truck, which weighs 3.94 kg, is able to drive over a 6 cm tall book or climb inclines slightly above 15°. It's not a perfect model, and it's truly sluggish, but oh well. Functions: remotely controlled drive and steering remotely controlled 4-speed transmission (with the lowest speed disabled so I could use a PF Servo as shifter) remotely controlled pneumatical locking of differentials in all three axles 6x6 drive suspension: live axles #1 and #3, pendular axle #2 (for improved chassis rigidity and to maintain ground clearance) switch-operated rear winch opening hood with a V8 piston engine running at constant speed and opening doors and a tiny detail that I really wanted to get done: a see-through grille

Looks really awesome! If I may suggest something, you could get improved steering, with pivot nearer the center of the tires, if you swapped the rims for these: https://www.bricklink.com/v2/catalog/catalogitem.page?P=49294&idColor=11#T=C&C=11 Yes, they fit the tires you're using. They would probably require wider bridges, though.

Ahhh, nothing elevates a discussion like a personal insult. Look buddy, long story short: you posted a rather old, well-known video with a clickbait-ey title and most of the forum doesn't appreciate this. Deal with it and move on.

By the same logic you can dig up every video in existence, be it 4, 14 or 40 years old, because NOT EVERYONE HAS SEEN IT, and then do it again on the very next day. There is no single video that everyone has seen, nor is it the goal of EB to make sure that a particular video was seen by everyone. This is where looking at the date when a video was posted and using your common sense is advised. You want this forum to be about something fresh or about the videos from x years ago that you perhaps haven't seen yet?

The video is 4 years old, so it's a safe bet that it's been reported several times already. As others have stated, this is basically an RC heli inside a LEGO shell. If you enjoy this kind of approach, you may also want to check out this abomination, which is also creatively labeled as "Lego". @nerdsforprez You mean extremely slow and starting yet another project way too often?

Sorry, I have absolutely no idea. Dimensions of the model are listed on the Ideas page, though, if that's what you're looking for.

Here's another topic that may get booted out of the Technic section for looking too detailed Ideas link: https://ideas.lego.com/projects/73fc6d39-20c6-4f9f-9473-c6ed35396d09 Photos: https://bricksafe.com/pages/sariel/classic-us-truck-rc I present a simple, nearly minifig-scale truck based on the classic Kenworth W900 in a flat top sleeper variant. The idea behind submitting it to Ideas was that since LEGO keeps making simple RC cars such as 421090 and 42124, then why not a simple RC truck? I was inspired by the excellent Mack Anthem set, but eventually drifted towards building the body with System pieces because at this scale I couldn't get a decent detail level with Technic. So it's a System body on a Technic chassis, and the functions are as follows: remotely controlled drive & steering with a working steering wheel opening doors and hood removable back of the sleeper (for changing batteries), the Control+ hub activated by turning the round tile on truck's roof trailer with parking outriggers and opening doors reasonably realistic hitching action (the trailer lowers onto the fifth wheel when you manually retract the outriggers) Any votes are appreciated and a full video is below:

You should be seeing version 1.18 already: https://play.google.com/store/apps/details?id=pl.sariel.brickgearratiocalculator In this version there is a huge new functionality called COMBINATIONS FINDER. In it, you can specify the gear ratio you want to obtain, the number of pairs of gears you want to use, and the app will calculate a solution for it. If there is no exact solution found, you will get the closest result possible. If the given gear ratio can be obtained with several combinations of gears, all of them will get listed. I hope this will help you, just keep in mind that calculating solution for 4 pairs of gears can take 10+ minutes depending on the device. This is also the reason why I didn't add option for 5, 6 and more pairs of gears - this would likely melt your device :)

I proudly present my latest invention which addresses a very common problem:

Four words: waiting for Bricklink orders. When I'm forced to wait for parts for one project, I just switch to another. Or maybe yesterday I felt like continuing on project A but today I'd rather go back to project B.

Add extra gear reduction between the steering motor and the subtractor. Use a worm gear if there's no other option, that will solve it.

That's one way to look at it, here's another: with direct drive, if you use two motors for drive, each track is only driven by a single motor. You will never get more power on this one track than this single motor provides. With a subtractor, if you couple two motors and use them for driving, each track is powered by two motors simultaneously. This may be an advantage when negotiating obstacles and e.g. one track slips or goes up in the air.

Um, no. Nobody's stopping you from coupling 2, 4 or 10 motors together and connecting them to that one drive input. Just because there's only one axle coming in doesn't mean you're limited to using only one motor.

Few builders have ever needed a subtractor, I guess, but those who did will probably welcome a new, smaller and streamlined design. I've designed a bunch of subtractors before but they were all al least 3 studs tall. So this one is as flat as it gets. Free instructions with parts list included: http://sariel.pl/down/flat-subtractor.pdf And a totally biased video comparing it to a direct drive:

I'm surprised too. I mean it's literally at least 50% Technic pieces. What happened, too few gaps for the Technic forum?

I have a thing for the early days of racing, and Mercedes-Benz SSKL, also known as "White Elephant" was a truly spectacular machine of the era, with distinctive stripped-down bodywork (they even cut holes in the stringers to reduce weight) and top speed of 235 km/h. So I've built a fairly simple model of one and if you're interested in the historical background and some photos, check out http://sariel.pl/2021/02/mercedes-benz-sskl/

I thought the 10265 Ford Mustang was the best LEGO Creator Expert car ever. But that may no longer be valid:

Never seen it happen, but should such case happen, of course I'll treat it as a new. Let it go.

I beg to differ. On a principle, I don't mark part as new if it's been added to Bricklink already. You have to draw a line somewhere and this seems more objective than some arbitrary timespan. I mean, there are people to whom PF extension wires are new.