John Deere 5115


Sometimes you just do not want to shovel your own snow. Why not get a machine to do it for you?

The full gallery may be found on Flickr.com.

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I have enjoyed building a number of tractors over the years, and I think it is mostly because I enjoy building all the implements. This little Deere is no exception. When I was making instructions for the Claas Atos, I found some inspiration from this picture. I wondered, “could I turn this into another tractor?” Yes, yes I could. So I was off on another mid-power tractor.

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I decided on the John Deere 5115, which is a mid-power, open cab row tractor. I used the chassis of the Atos, so the tractor retained the drive, steering, front and rear PTO, and the front and rear three point hitch. I added a green fake engine, a new hood, and some new wheels and tires (Batmobile!). So it was a simple modification of a simple previous build.

I added a variable V-Plow on the front from M_Longer, and a simple spreader on the rear powered by the PTO.

The MOC worked just as well as the Atos, which it should. But the Deere looked a little better. The hood looked more complete, and the proportions looked a little better. Plus the color of the green and yellow always looks sharp.

Happy building.

Iveco Skip Loader


I have done a lot of small scale trucks, and it was time for me to do something bigger. 2 studs bigger to be precise.

Full gallery is here.

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This project stared as a desire to make another small truck. I have used the 43.2mm tire in my trucks a lot, and I have used the 49.5mm tire only once. I was ready for the newer size again, so I found a nice little truck to model, and I was off. I very much like the shape of the 49.5mm tire, but it presents some challenges to scale. I works much better as a 15 stud wide size, and trucks often have a dual tires on the drive axle. This leaves only 5 studs of width to work with for the chassis and driveline. While a differential will fit within this space, keeping the axle connected to the differential does not happen when driving the finished truck. So I have a 8l axle with stop connected to a bevel gear on one side, and a 5l axle with stop. The gear then runs to the front of the truck where it connects to a V-4 engine.

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Adding the skip functions were the next challenge. Adding the rear outriggers was not very difficult, but then it was complicated by adding the skip hook. Both are moved by mLA that are mounted far forward in the truck and connected by long liftarms to the back. It took a while to get the geometry of all of this to work together in conjunction with the lifting arms, but in the end it all worked well. The lifting actuators are moved by a gear on the side, and the other two functions are moved by two gears on the top of the cab protector.

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Working on the cab came next, and I used a mix of system and technic bricks. I made sure the cab could tilt, and there is a locking mechanism. The steering HOG is on the top of the cabin, and connects when the cab is down.

Finally, I added a little trailer. I added a simple function to lock the skip in place. The trailer can be towed by the truck, and when it is time to add a skip the hitch goes under the truck so it can get close enough to drop the skip.

The truck ended up doing everything I wanted. The tip and lift functions work well, and the trailer was a fun little addition. The colors work well for this truck, and the cab turned out as well. Maybe I will need to do another MOC in this scale.

Happy Building.

 

LEGO 42098 Car MOD


I do not buy many sets these days, mostly due to the fact that the space required for a gazillion new parts every year is not priority I am willing to resource. But some sets are a fun opportunities to MOD.

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The little car from 42098 caught my eye. While the truck was neat, it was not what I was interest in, so after a query of my own part collection, and a quick order from LEGO, I got the parts I needed. Upon completion, there were a couple parts of the car that bothered me, and a couple of parts I thought I could improve. So I started taking apart the car to see what I could do.

First, I made a mock-up of the side of the car to see if opening doors could work without lengthening the car. Turns out by moving the curved panel forward one stud, it works easily.

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Next, I was off to the rear axle. It was easy enough to design a simple live axle and connect it to the V-8. What become tricky was mounting the shocks. 42098 has low rear deck, and I do not like how the rear wheels are pushed down away from the wheel wells; it make the car look tilted forward. So finding an appropriate ride height to lower the rear while mounting the shocks in the limited space available took the rest of the time. Once this was in, I added the bodywork back on with a couple of changes to the 1950s rear and the side sills and the car was done.

The car worked well enough, though any live axle setup is a little silly when there is not suspension on the front. The engine still worked smoothly. The steering HOG on the back is still not optimal, but adding one on the roof would take away from the fantastic roof-line. Another round of edits may be needed to add back in the nominal opening hood. It is a pretty basic feature in the original car, but since opening doors were added in this MOD, the opening hood is missed. We’ll see what I end up MODing next time.

Happy building.

Unimog 437


If my previous builds are any indication, I am a big fan of Unimogs. So it was just a matter of time before I built another one. Rather than building one this time, I built a modular system that allows for a number of different versions.

Full instructions can be found here.

This build started with a desired to make another small build with the great Fischertechnik tires I acquired. I wanted to build something small and playful like RM8s FJ or Sheepo’s Defender. As has been happening with many of my recent builds, I wanted to give the MOC some playable options and easy modifications. A Unimog was a perfect option, and who am I to turn down a Unimog? So I gave myself the following constraints: 4×4, I4 fake engine, steering, manual and PF drive options, removable cabs, removable bed, and two chassis. I set off to work.

The axles came together fairly quickly. I decided quickly not to do portal axles, because I wanted the complexity of the MOC to be elsewhere. Both axles have a differential, two soft springs, and are stabilized longitudinally via steering links and laterally via panhard links. All for shocks are mounted on crankshaft parts to get the ride height of the Unimog just right. There is about 1.5 studs of travel for each wheel, which provides adequate articulation.

The axles are connected to a fixed axle that powers a I4 fake motor. Since I wanted the MOC to be easily switched between manual control and PF, the driveline got a little over-complicated quickly. The steering axle and drive axles cross each other twice. This allows for the steering to go to the top for a HOG, and backwards so a PF servo motor can be added. A 16t gear is available at the top of the chassis to power a PTO, or add a PF XL motor to give the Unimog propulsion. The long Chassis can fit a full a full Power Functions pack. When the power pack is not installed lots of open space is available for other additions. I added a three way tipper lift mechanism for both the long and short wheelbase chassis.

Attachment points were added for the rear bed and for the cab. I created three cabs, and each can be added to both chassis (though the Doka looks best on the LWB). Two axles with stop can be pulled to free the cab. I created three beds and a power pack. Four axles with stop are required at each corner to secure the bed. A camper and a crane bed are not far behind on my building queue.

The Unimog turned out exactly as I wanted. The suspension and steering are light and smooth under manual operation, and work great with PF. I am excited about the ability to offer and develop multiple beds and cabs. Instructions are posted, so I look forward to seeing other options people develop to make their own Unimog.

CAT 914K


These days, some projects are taking longer than they have in the past. The little Wiggs in my house and a mirad of other reponsibilities are slowing my production. This loader was started a little over a year ago, and it was finally finished last week.

The full gallery can be seen here.

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I was sitting on a train in Chicago, and saw a little CAT 914k out the window, and thought, “I should finally make a loader.” I got home and started to work. My collection recently added the Fischertechnik tires and the pneumatic parts from the LEGO 42053 Volvo, so I started calculating the scale. Once the scale was set I worked on the linkage for the bucket. I spent two full nights working on the linkage to take full advantage of the longer pneumatic rams. I used the longer ones on the lift, and a shorter one on the tilt.

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After the bucket mechanism was set, I worked on the chassis. The size allowed for four wheel drive. The rear axle was set in a pendular setup, which allowed for some articulation over varied terrain. The rear differential linked to a small I4 motor that was placed in the rear. The pneumatic valves were placed over the motor. The light on the roof operated the steering.

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While the project took a little too much time to complete, it was a fun project that turned out well. The linkage and bucket range worked well. It also held a load well. The stability of the loader could have been a little better when pumping the pneumatic pump, as the suspension took a lot of rigidity out of the rear. The design allowed for normal LEGO 81mm tires as well.

Happy Building.

Claas Atos


Not only are my builds becoming smaller, I am also enjoying builds that offer a little more modularity. Why build one thing, when the one thing can play a number of different tasks?

When I built the Snowblower a couple of years ago, I made a couple parts of the truck removable. So after the build was complete made a couple of other options: different cabs, other beds, a crane. This kind of building continued with the 9393 updated tractor. I was hooked. So, when it came time to make a tractor, I had this feature central to the build.

The Atos started a couple of years ago when I completed the 9393 update. I wanted a front PTO in a small tractor. Lime parts were becoming more prevalent (though we are still missing a red medium wheel), so I figured I could make something work. I started with the front axle, as it would need steering, a PTO shaft, and something to lift an implement. The PTO shaft runs directly forward from the rear differential under the steering rack. Another axle runs a stud and a half to the left, which drives a worm gear to elevate the front drawbar.

The engine is mounted on top of the steering unit, and is connected to the rear differential. Off the right side of the engine is a changeover that controls the raear PTO. This drive moves to the rear, and then powers another PTO for the rear. The changeover lever is in the cabin, to the right of the steering wheel. As in the front, a worm driven drawbar is on the rear to mount an implement. A simple hitch is there for a trailer.

I build a front Lemken furrow, a rear Poettinger power harrow, and a front and rear Claas disco mower. I look forward to making other implements as well. Each attach to the front and rear by removing a 5l and 8l axle with stop. It’s simple, and allows for endless modification.

I am happy with the way the tractor turned out. It was strong enough to handle the play of my young kids, and all the functions worked well. I would have like to have an on/off switch for the front PTO. Other than that it turned out well.

Until next time, happy building.

Mercedes Benz Arocs Tipper


I am finding myself building a lot of trucks these days, so let’s add another one to the collection.

Full gallery may be found on Flickr and Brickshelf.

Basically the whole point of this project was to make a mid scale truck that was orange. It seems like the only official LEGO sets I buy these days are the orange ones, so I have to use the parts for something. I found this nice little Arocs tipper truck, and I thought, that’s a great little idea. I started with the chassis which came together quickly. The two rear axles are connected via each differential, and drive a small 2 cylinder fake engine under the cab. The front two axles steer at different ratios, with a HOG gear going to the top of the cabin. A linear actuator is used to tip the bed, with controls on each side.

The tipper bed came together quickly, though I wished some additional parts were available in Orange. No problem, but in this age of LEGO Technic color proliferation, it would be nice to complete a color pallet before starting on another one. Anyway, the cab was little more tricky. Like many modern trucks, the grill is a rather unique. The Arocs uses four rows of little scoops with a large center star. Adding something similar on my truck required some creativity, and compromise. I fit only three rows, and recreated the scoops with cheese slopes. The top row was mounted level, and the two lower rows were mounted on hinge plates connected on the side of the cab.

The final model was sufficient, but not groundbreaking. It looks good enough; you can tell what it is, but it does not win any modeling contests. The steering worked great, as did the drivetrain. The tipper bed worked well, but required a little muscle at the early stage of tipping due to the leverage. The tilting cab worked well, but in its resting state was a little too loose. Maybe someday I will edit the grill to make it better, but for now, it works.

Happy Building

Coast Guard Helicopter


I enjoy helicopters very much, so as it has been some time since the MD600, it was about time to make another one.

The full gallery can be found on Flickr and Brickshelf.

After my last helicopter, I wanted to build one that was more basic. This one would simple, small, colorful, and would make use of the excellent blades from set 9396. I wanted to do something like the Sea King, but with a Fenestron tail. I used a HH-52 as a basis for the scale. I built a mock-up of the scale, and started making the gearbox for the helicopter. The main rotor could be operated from a gear on the left of the aircraft. Two changeovers located next to the landing gear pods could be engaged to drive the land gear (up or down, on left) and the winch (up or down, on right). The main rotor was connected to the Fenstron fan at the rear. Both the landing gear and the winch are driven by worm gears, so they would stay locked when the changeovers were in neutral.

The gearbox is mounted in the bottom of the helicopter directly under the rotor. The landing gear mechanism moves forward with the pilot and co-pilot seats directly on top (I love those new panels). The winch gear moves aft, and drives a simple string spool. The compact driveline keeps enough space for a full cabin. There is enough room to add a battery box, and a M motor to power the rotor.

The body work came together quickly with the exception of the rear doors. I wanted to add two sliding doors with windows, and based on the color scheme of the helicopter, they had a to be white. After six drafts, I finally came up with a solution that was doable. They are not perfect, but all the other designs had windows that were comically small, or too low in on the body. Unfortunate, the design calls for six white rare parts. The rest of the bodywork turned out well. The nose, while a little clunky, looked how I wanted. The top area looked good with the three engine exhausts, and the six bladed rotor, while overdone, fit perfectly. Oh, and with clever pin placement, you can fold the rotor back towards the tail. The tail looked sharp with the ducted fan. The vertical stabilizer looked empty, but that’s a problem for all LEGO Technic aircraft with the exception of 42040 (maybe).

 

The helicopter worked great, though a clutch for the gearbox would have been nice. I was pleased with the bodywork of the helicopter, and the colors worked well; maybe grey and orange would be great on a rebuild. I would have lived to have a cleaner design for the wheel pods, but it worked well enough. It was a good swooshable design, as I found playing with the helicopter extensively. Now I need to make a scale Coast Guard ship on which the helicopter can land. Maybe next year.

Happy Building

Forest Fire Truck


Everyone once and a while I see a design I like so much, I copy it. So thanks to Horcik Designs on the fun little Fire Truck that I copied. Thanks for the inspiration.

The full gallery may be found on Flickr and Brickshelf.

When I found Horcik’s fun little Fire Truck, I was immediately enamored with the look of the truck. After deciding I was going to make it, I started looking for additional features to add to the excellent design. After finding some great ideas of a Renault version (2), I decided to get to work. The truck started with a 4×4 driveline and an I-4 engine. I used a simple live axle setup with 9l steering links to keep the sway movement in check, and both axles used a Panhard link. The steering was actuated with another 9l steering link, rather than the more common rack and pinion setup. This allowed for a lower engine mount, and something a little different in the design. The steering can be moved by both lights on the roof of the cab.

Which brings us to the cab. I wanted to use the face of Horcik’s truck, but wanted to add some changes. I added two doors to make the cab a little longer, and added four of the new panel parts that work great as seats. Then I made sure the cab could be tilted simply, and connected the two roof lights to the steering. You can see the engine and the steering when the cab is tilted.

Then off to the body. It turned out to be more simple than I had planned. I had some ideas for a hose reel, a roof mounted water gun, and various cabinets with tools inside. Every idea I tried was a little ugly, or boring. So, I closed up the design with a couple of water tanks inside the body of panels. It’s not fancy, but the design turned out clean, which is what attracted me to the project in the first place.

The design worked fine, though the front axle could be a little more robust. It was not a complicated build, but it was a fun one. Don’t worry, there will be complicated builds coming soon.

Happy Building.

BMW R nine E


As a LEGO Technic builder, form generally follows function. Sure, I make most of my MOCs aesthetically pleasing, but the joy and the priority of my builds, is what they can do. But every once and while, I flip this. I set out to make a motorcycle that looked a certain way, and adding in as many features as I could.

The full gallery can be found on Flickr and Brickshelf.

I have been planning to build a motorcycle for some time, and the 2017 Rebrick contest was a good impetus to finally make good on that claim. The contest theme was to build a BMW motorcycle for the future. So while keeping a couple design themes in mind, I could let my imagination go wild. I used Ian McElroy’s excellent Kickboxer concept as a basis. My bike would be dual single sided swingarms, a boxer electric motor, steering, and front and rear suspension, with drive front and rear. Oh, and I had to use the sweet 8420 wheels.

I started with swing arms. The front would be tough as steering with the swing arm would be tricky. I settled on a design with four steering links mounted in a square. This would allow for suspension movement, and the parallelogram linkage would allow for a virtual pivot close to the wheel centerline. I quickly learned adding a drive axle was not worth my time. The liftarm was connected to the handle bars with a series of links and liftarms. Technically, it worked, but it was a little sloppy. The rear swing arm was more simple. After toying with a rear driveline idea, I found it to be clunky looking, so I reverted to a design that mirrored the front. So now both drivelines had been given up.

The body was little more straightforward. Keeping with many BMW motorcycles, I wanted to keep the two cylinder Boxer motor. Since my bike would be electric, one motor would drive the front, and one would drive the rear. The battery was mounted low, and under motors and covered by the panels. I added a seat with seat back pod, and a tank. The tank was for small luggage, since the fuel tank was no longer needed due to the battery. I wanted to keep the sides free so you could see the frame, but it looked like it was missing something. I added two panels, which to my eyes seems about right. The small blue subframe under the seat gave a little additional color.

The bike looked good to my eyes, but the functions were lacking or did not function well. The suspension was gummy, and steering was sloppy. The bike lacked a drivetrain, which is the whole reason I build in Technic. It was fun to build a Motorcycle though, so I’ll make another one soon, but I think this time, I’ll use some more common design themes and building techniques.

Until then, happy building.