icekusbe

Thank you for your kind feedback; a longer wheelbase could also allow better offroad capabilities as the centre of mass could be more further to the front as the hub takes so much space. Perhaps I'll create a revision of this tractor design in the future following the design of some existing tractor. It's been over a month now since my latest post, as I've been quite busy and stressed over writing my master's thesis in engineering. However, here's a small and rather unoriginal build I've managed to build every now and then: Mercedes-Benz Zetros 6x6 Building this truck began during my latest impulse buying session in BrickLink. I've wanted to build narrow axles with diff locks and planetary hubs for a long time, so I bought a bunch of these red 2L driving rings and took them on a date with Mr. Power Drill to expand the hole from the other end so that the rings could lock with heavy duty diffs.Building these axles is possible using the 2473 gray 2L driving ring introduced in Yamaha MT10, but these weren't available at BL in sufficient quantities by the time I started building this. I then built the chassis and leaf spring suspension around the axles, and finally the cockpit using as much of the Lego Zetros design as possible. Sadly, the diff locks do not have a centralized toggling mechanism, as the front axle (with steering motor attached) does not have space for attaching the gear shifter lever on the top and operating it via an u-joint. I should overcome this issue later and create some other truck with diff locks on all axles. For my next build, I have three different ideas: Tatra Phoenix 10x10 Unimog trial truck with 107mm tires and my close-pivot point portal hub design SCARA robot

I built this experimental tractor chassis where the right and the left rear wheels are driven independently so that the tractor could steer even when the front axle does not touch the ground. Then the average of the R/L turning speeds (=the turning speed of the differential) is transmitted to the front axle through appropriate gearing. The rear tires are mounted on the old 56 tooth turntables with 4:1 planetary gearing inside. In the pic of the bottom you can see the tan 20 tooth double bevel gears, which have 12 tooth small bevel gears driving them. Finally, there are the PU controls which I built with a very heuristic approach, but they seem to work both in forward and reverse driving. This was a very quick (3-hour) build, and I probably won't make this into a finished model, as the driving motors placed vertically would make it quite ugly.

Continuing with the tractor theme: Unbranded 4WD tractor I wanted to build an RC tractor moc with the 94.8mm balloon tires in front so that I could use the 56mm Defender rims for the steered axle. I ended up in this design where the steering servo is fixed to the tractor body, moving a 1x7 gear rack that is attached on a link to the pendular front axle. For the front and rear tire to have almost matching peripheral speeds, I used a 28:24 gear ratio between the axles. Here is the result: Please guide me to other tractor MOCs with 94.8/107mm tire scale if there are any; I'm interested in what tractors people have scale modelled with these tires.

Next, some tractors: MTZ Belarus 1221.1 This one was fun to do. 4WD, swinging portal front axle (but no differentials :( ) and old 8880 rims mounted on large turntables. Front-end loader (based loosely on Valtra N163) This one had more playability. 4WD with swinging front axle too, remote-controlled loader height (but the other function is manual), lockable rear differential, DIY planetary hubs in the rear with 4:1 reduction, and a constant-difference central differential for linear gear reduction between front and rear axles. I also built this openable container and 1-actuator hooklift to spice the logistics games up a little. Sorry for using these sawn-off ball joint beams; I have a pile of them so ruining two of them for a narrow tractor front axle won't hurt.

Hello, I decided to create one topic for posting some of my MOC:s, such as trucks, tractors and military vehicles. Let's start with my latest creation: Toyota Hilux Double Cab This was perhaps the most detailed creation I have ever done. RC 4x4, independent front suspension, leaf spring rear suspension (soft axles + shock absorbers), lockable central and rear differentials, and a 4-speed gearbox (manually controlled). A minus is that there was no space for rear diff lock controls, so it has to be clicked on from the below. I detailed the outdoors looks pretty far, but the indoors dont look so good.

Amazing MOC, technically and aesthetically. Speaking of the new version being two studs wider, I have a question on the earlier version: How did you manage to build a double wishbone suspension so narrow? Which U/CV joint did you use attached to the differentials, or did you attach the u-joint to the diff without a frame in between?

It seems to be possible to build a portal hub from existing lego parts, with the pivot point just outside the rim. A design somewhat like this would be sturdy enough for a non-motorized model (and for motorized MOCs, there is no U-joint to break). It would be possible to put the pivot point even closer to the center of the tires, but then the upper ball joint would have to be outside the rim and above the tire

Hello, I'm all new to this site too, and decided to post some of my military vehicle MOCs without making a new thread. Willys MB jeep from Technic bricks, 4WD RC with 2x Control+ L motors and live axle suspension. One of the most iconic US WW2 vehicles, known for its simplicity and high production numbers. Sorry for the lack of headlights, steering wheel and spare tire; I ran out of space with this scale :) There's also a few CADA bricks here and there, but nothing that couldn't be replaced with official Lego parts. Patria AMV with AMOS mortar system, 8WD RC with 3x Control+ L motors and independent suspension. A modern-day weapons system from Finland that I have wanted to build it for a long time, and finally built when the Audi tires became widely available in Bricklink. I know someone else from this site has built the same vehicle, but in significantly larger scale and not entirely with Technic parts, so I hope this built has some novelty value. I'm currently working on a LVSR tractor truck (the USMC 10x10 vehicle), and will probably post it here as well.

Hello! I'm Icekusbe from Finland. I started my Lego hobby again a year ago, when I had to make up a new hobby to get my mind away from work and studies. I mostly build RC mocs of trucks, tractors, military vehicles or other logistics equipment (however, I never have the motivation to add small details or interiors before starting a new project :D). I will probably be posting some of my less bad mocs here, in case some part of them would give others inspiration. I've been following the "Axle collection thread" for some months now.