DavejspTechnicMOCs

<- Back to Index of Davejsp's Technic MOCs thread 42095 Battle Tank Rebuild your Lego Technic set 42095 "Stunt Racer" into a compact, remote-controlled "Battle Tank" alternative model, no extra parts needed! About: The Stunt Racer is a tracked vehicle, and at the time I designed this no one had yet published a battle tank alternate build for it, so I went for it. The tracked drivetrain was already there, each track independently remote-controlled just as in the original model, so motorization was actually the straightforward part. Everything else was a challenge. The 42095 inventory is very limited, and building something as recognizable as a tank within those constraints was quite the puzzle. Bodywork is minimal, there simply aren't enough appropriate panels to do much more, but the silhouette reads immediately as a tank, which was the primary objective. The turret rotates a full 360 degrees manually and the main gun can be elevated to a point, details that add playability. One aspect that made the build unusually complex was something most people wouldn't even notice: the model's width works out to an even number of pin holes. Technic construction is almost universally built around odd widths, and deviating from that creates cascading complications with symmetry, attachment points, and structural connections throughout the entire model. It's the kind of constraint that makes every subsequent decision harder, and working through it cleanly took considerably more iteration than the motorization ever did, that was my first time working with a even width Technic MOC, never again! The result is compact, lightweight, and sturdy Battle Tank MOC, with decent ground clearance and solid off-road capability for its size. The power button is accessible on the side without flipping the model, and batteries can be swapped with a quick partial disassembly. Photos: Full parts list, a video, and the PDF building instructions are available on my website davejsptechnicmocs.com

That leak doesn't seem impressive to me, just more of the usual, still hoping for a nice surprise.

I've been following this thread, and I don't really have nothing to add, but I gotta comment that I love everythign so far and the bodywork is amazing. You have great skills.

<- Back to Index of Davejsp's Technic MOCs thread 42099 Terrain Explorer Rebuild your Lego Technic "4x4 X-treme Off-Roader" set 42099 into this "Terrain Explorer" truck alternative model, no extra parts needed! About: By the time I started this build I had already made several alternate models from the 42099, and I had a specific idea I'd been wanting to try for a while: using the two large turntables available in the set as the structural foundation of the suspension system. That was the main motivation for starting this one, and it worked out beautifully, the live axle suspension it has both at the rear and front is one of the most responsive I've built, with a fluidity that more complex suspension designs don't always deliver. That responsiveness comes directly from a series of deliberate simplification choices on the chassis. There's no transmission, the rear wheels run directly off the motors with a gearless 1:1 ratio, eliminating gear friction entirely. Live axle suspension front and rear meant solid axles with a straightforward design, dramatically reducing the parts count and complexity of the chassis compared to independent suspension setups. The planetary wheel hubs available in the set were left out intentionally: they add mechanical complexity, and more importantly they introduce drag on the front wheels, which have no traction to begin with and need to roll as freely as possible. The payoff for all that chassis efficiency was parts, a lot of them freed up to spend on the body instead. The result is a more elaborate exterior than I'd managed on previous 42099 builds, with a simple interior, front grille, bull bar, and a mechanism to unload the spare tire. That last detail works by sliding the spare down on its own once manually unlocked, a small but satisfying touch that gives the model a manual functional detail. Ground clearance sits at 3 studs, the hub button is accessible by pressing the driver's seat, and batteries swap from underneath with no obstructions. Render of the chassis with the Powered Up electric elements, drive and steering mechanisms in place, focusing on the front suspension. Render of the chassis with the focus on the rear suspension. Studio Renderizations: Full parts list, a video, and the PDF building instructions are available on my website davejsptechnicmocs.com

<- Back to Index of Davejsp's Technic MOCs thread 42109 "Racing Cabriolet" Breathe new life into your Lego Technic "Top Gear Rally Car" set 42109 by rebuilding it into a remote-controlled "Racing Cabriolet"! About: This was my first alternate build for the 42109, and also my first real experience with the set, getting to know its inventory took some time. In my opinion, the 42109 is a difficult set to work with: few gears, few liftarms, few connectors, a reasonable number of fairings and panels but in colors that don't help much, and a bulky XL-motor that takes up a disproportionate amount of space and forces compromises everywhere around it. For this first attempt I made a decision I've never repeated on any other build: I started constructing without a clear idea of what I wanted to make. I built an RC chassis first, the L-motor driving the rear axle, the XL-motor handling steering from the front where there was more room to fit it, and then worked out what to wrap around it afterward. It's an unconventional way to approach a build and the result reflects that. I covered the chassis as well as I could at the time and ended up with a cabriolet body, which suited the proportions well enough. It's a decently realized model. The hub button is reachable without disassembly, batteries swap from underneath cleanly, and there's a basic interior adding some detail the original model lacks. This build gave me clarity about how to approach an alternate build, and every subsequent MOC from this set is substantially better for that lesson. Render of the chassis with the Powered Up electric elements, drive and steering mechanisms in place. Photos: Full parts list, a video, and the PDF building instructions are available on my website davejsptechnicmocs.com

Answering the topic's original question: I believe The LEGO Group will continue being The LEGO Group and will still publish a lot of licensed sets, probably more cars, but also possibly a few bigger sets to celebrate the 50th anniversary, likely a big construction machine or vehicle, one of them probably with Powered Up motorization. In other words, I'm not expecting anything much different from the usual, though I'd love for TLG to prove me wrong. What I wish they'd do is either publish a few remakes of iconic vintage sets keeping their original style but using new parts, or release completely new sets with all the mechanisms visible from the outside, no bodywork, the way the first Technic sets used to be.

I test both my MOCs functionalities and my pdf instructions, taking whatever time I need to do so. I take my MOCs quality very seriously.

I publish both free and paid MOCs. As you'd expect, simpler builds are free, while more complex ones are priced according to how much work went into them. The reason I do paid MOCs at all is practical: it lets me reinvest in newer sets and parts, which keeps my inventory diverse enough to keep designing new stuff. As for the building instructions, this might sound odd, but I actually enjoy the process of making them extremely detailed. There was definitely a learning curve early on, but my latest MOCs now come with instructions I'm proud of.

<- Back to Index of Davejsp's Technic MOCs thread 42049 Telehandler Rebuild your "Mine Loader" set 42049 into a "Telehandler" alternate model! About: After spending so many years away from LEGO and then coming back to discover everything I'd missed, certain sets just get your attention faster than others. The 42049 Mine Loader was one of them, a small budget set with a vehicle design that felt different from everything else in the lineup at the time. I found a used one, picked it up, and quickly realized the inventory was well suited to machinery-style builds: sturdy, functional pieces without a lot of the aesthetic-focused elements. The idea for a Telehandler came from the large turntable piece in the set. The moment I saw it I could picture it being used to elevate a boom and hold it at virtually any angle without it creeping back down, instead of pre-defined positions. From there it became a challenge: how many functions could I pack into a Telehandler at this scale, using only what this inventory offered? The answer turned out to be quite a few. The model includes an openable cabin door and engine compartment, a functional fake engine, hand of God steering, deployable outriggers, a boom lift and extension, attachment tilt for the forks, and adjustable forks. Each of those required its own solution within the constraints of the parts pool, and getting them all to coexist in a compact, coherent model was the puzzle that made this build one of the more satisfying projects I've taken on. Photos: Full parts list, a video, and the PDF building instructions are available on my website davejsptechnicmocs.com

<- Back to Index of Davejsp's Technic MOCs thread 42140 Racing Ripsaw Rebuild your "Transformation Vehicle" set 42140 into a remote-controlled "Racing Ripsaw"! About: This was actually my first alternate build for the 42140. The original model is already a kind of ripsaw, but I wanted to build a classic ripsaw, but styled for racing rather than utility, and pushed as far as the inventory would allow. My first instinct on gearing was to configure the set's gears for a 1:1.67 speed ratio, the same approach I used on the rally car, but thinking it through further, the tracks already carry a lot of inherent friction and drag from themselves so there would be a lot of wasted energy, and gearing down for torque would have made the model too slow for what I wanted. So I went gearless instead, a direct 1:1 ratio driving the larger rear sprocket wheels, which gives a better balance of speed and torque without the extra friction. I also made ground clearance a deliberate priority from the start, 4 studs is generous for this scale, and it's there specifically to give the model real off-road capability rather than just looking the part. I wanted to put the set's shock absorbers to use as well, so each track gets one at the front, with enough travel to keep the tracks properly tensioned without loosening up too much. The curved panels went into shaping an aerodynamic front nose, and the driver's cabin has a roof that opens to reach the hub's power button directly, which also made it easy to keep battery swapping accessible from underneath with no obstructions. At one point the build was largely finished but the rear end felt flat and visually boring, adding a non-functional V8-style block back there solved that; it doesn't do anything mechanically, but it completes the design and the whole model looks better with it in place. The rear spoiler wasn't part of the original plan either, I had some leftover parts and it just made sense to use them. Full parts list, a video, and the PDF building instructions are available on my website davejsptechnicmocs.com

Thanks! The 42037 didn't get much attention, maybe it's the color scheme putting people off, maybe it's something else, but I think it's underrated. The inventory has some really useful pieces for building car chassis, which made it a lot of fun to work with. Hopefully this quad bike alt build helps place more eyes on the set.

<- Back to Index of Davejsp's Technic MOCs thread 42037 Quad Bike Rebuild your Lego Technic "Formula Off-Roader" set 42037 into an Quad Bike alternative model. Background context: This set was another early purchase after coming out of my dark age, and the story behind acquiring it is almost identical to the 8048: spotted a used one going cheap online and bought it as a parts pack. What changed my plans was going to look for existing alternate builds afterward and finding almost nothing, like three MOCs for a set that's been out since 2015. So I thought, maybe I can contributte with something... Chapter 1: What to build? The first thing that pops up are the wheels, they're enormous, and they set the scale reference for everything else. With wheels that size, there aren't enough fairings in the set to build a fully covered vehicle, and going with a buggy or hot rod would have been too close to the original model's territory. At some point the idea clicked: a quad bike was a natural fit for both the parts and the color scheme, and that became the direction. Chapter 2: What functions to include? The Formula Off-Roader inventory has an interesting mix of pieces for its era. A functional fake engine connected to the rear wheels, rear axle suspension, independent front suspension, and steering all seemed achievable, it was then a matter of squeezing as much details as possible out of the available parts. Chapter 3: Fake engine block Both the original model and its B-model use an inline-4 style fake engine, but that makes no sense on a quad bike. I started with the idea of a 2-cylinder, but wanted to make proper use of all four pistons available, so I went with a V4. The set is missing certain pieces that would normally make a V-type engine straightforward to build, so getting the spacing and angles right took several attempts. The result is a compact V4 fake engine that works well within the constraints. Chapter 4: Rear axle and transmission Most quad bikes use a simple solid rear axle driven by a chain, but this set has no chain pieces. I could have kept things simple anyway, but I wanted to use the differential available in the inventory, which meant building a conventional transmission with a universal joint and a supporting frame to handle the differential and suspension properly. It looks unconventional, but it's there for sturdiness and functionality rather than aesthetics. Chapter 5: Front wheels, steering and suspension I wanted the entire front section, wheels, suspension, steering, to sit at an angle, which meant building it as a self-contained module and attaching it to the main chassis at that angle. The techniques themselves are standard, but the challenge was managing an increasingly depleted parts pool while trying to fit steering and independent suspension into very tight remaining space. It wasn't easy. Chapter 6: Bodywork The set has a reasonable number of fairings, but split across two contrasting colors. Rather than fight that, I leaned into it, one color at the front, another at the rear. The rear design came together quickly, but the front required several iterations before settling on a version I was happy enough with. Chapter 7: Details The set has no trans-red pieces, so the tail lights are represented using red pins and axles, a small creative workaround that reads well in context. The exhaust and muffler are built from pin connectors, and a few liftarms shape the fuel tank. The steering handlebar, headlights, and a bull bar round out the front end. The bull bar in particular went through several versions; by that stage the available connectors and axles were nearly exhausted, and I had to accept a solution I'm not entirely satisfied with rather than compromise the rest of the model. Sometimes that's how it goes. Full parts list, a video, and the PDF building instructions are available on my website davejsptechnicmocs.com

Hello, when possible, I would like to change my username from "BrisquesDesigns" to "DavejspTechnicMOCs" for consistency across different platforms. Thank you in advance.

Hello, when possible, I would liek to change my username to "BrisquesDesigns" as that's my new "brand" name on the internet, thank you in advance!

<- Back to Index of Davejsp's Technic MOCs thread 8048 RC Dune Buggy This MOC is a motorized alternative model for the 2010 LEGO® Technic Buggy (set 8048). It is built primarily using parts from the original set, with the addition of a few Power Functions components, to make this remote-controlled Dune Buggy Model. About: Much the same story as the 42095 Baja Racer MOC, still in the early phase of rebuilding my parts pool after the dark age, still finding new ideas in the sets I already owned. The 8048 is an inventory I kept returning to for the same reasons I've mentioned before: it sits at that interesting midpoint between the old skeletal studded style and the modern covered aesthetic, and it lends itself naturally to conventional RC vehicle designs. This Dune Buggy is another exploration of that, and a companion piece of sorts to the 8048 RC Roadster. It uses only the parts from the original set plus a few Power Functions components, which makes it one of the more accessible builds in this thread for anyone who already owns the 8048. The mechanical layout is straightforward: RWD through a solid rear axle at a 1:1 gear ratio driven by a single PF L-motor, front-wheel steering via a PF servo, and independent double wishbone front suspension. The 1:1 ratio keeps things simple and the lightweight build makes it responsive and fun to drive. Power button is easy to reach and batteries swap out quickly. Photos: Full parts list, a video, and the PDF building instructions are available on my website davejsptechnicmocs.com