8081 SRT Tremor


Lego set 8081 is one of my favorites. It’s a cute little set, that has some mechanical diffenciencies, so I have made a number of MODs of the set. Here’s another one.

The full gallery may be found here.

It’s becoming a bit of a bad habit for me to start a new project while I am currently building something else. While I was building the 8081 110, I founds myself making another draft of a little pickup. I moved pretty quickly on the 8081 110, but this project stalled. The chassis came together quickly. The live axle rear suspension is a simple design with five links to keep non-vertical movement at bay. The front is a simple independent wishbone design just like the original 8081. Finally, I placed a V-8 right over the front suspension, and geared it to the rear wheels. I used the new differential in the rear axle, which drives the V-8 a little faster than in my previous designs.

The sport pickup is a silly I idea that was all the rage in the United States in the late ’90s and early ’00s. Pickups like the SVT Lightning, the Ram STR-10, and my personal favorite the Dodge Dakota RT, were prevalent. This MOC slowed while I was trying to get the styling in the vein of these notable pickups. I liked what I designed for the front and rear bumper, and the rear bed was sufficient. But all the designs I came up with for the hood and the front grill looked dull and basic. Each of the above pickups had bold grills, and a hood line that communicated more power than anyone would need.

At some point, I realized I was not making any changes to the design, and I was running out of creativity. So it was time to be done.

While this is not my favorite MOD of 8081, it is another one to add to my long lists of MODs. The MOD worked well in that each of the simple features functioned without any problems. But I do feel like I did not do justice to 8081 with this MOD, nor did I represent any of those sport pickups well with this MOD. Maybe I’ll need to build a replacement soon….

Happy building.

LMP C Turbo


Every once and a while I participant in a Eurobricks Contest. This car was the entry into the TC18 Contest.

Full gallery may be found here.

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The contest called for a small car using only two types of wheels, and not more than 15 studs wide. I like building small non-powered builds, so I decided to get to work. After working on a couple of drafts of car layouts, I decided on the LMP type C race car. It would be a little challenge, and allowed me to add some features that I wanted.

I new I would want an engine, steering, and removable bodywork panels just like a real LMP car. This morphed into a fully modular build. I started with the Monocoque which contains the steering, driver seat, roll structure, and rear engine and suspension mount.

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Next I worked on the engine and rear axle. I used a mini V-8 design that is becoming common in LEGO designs, and made mine in such a way that it could be easily removed. The design incorporates an intake and turbo exhaust. The rear axle attached behind the engine. The entire assembly can be easily removed.

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The bodywork took a little work, but only because I could not decide on the colors I wanted. Dark Azure was decided upon pretty quickly because it looked sharp, and had the small wheel panels. But the accent color was a little tricky. I liked yellow, white, black, but finally settled on lime. I hope you like the final look.

Everything worked well, and it looked the way I wanted it to. The result of the contest was about right in the middle on the 40ish contestants, so good, but not great.

I hope you enjoy the build. Happy building.

 

 

 

 

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.

1E.R Track Car


Thirdwigg Motors is not immune to the regulatory requirements of automotive manufacturing. As such, electrification has arrived!

Full gallery may be found on Flickr.com.

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After the introduction of the 3T Sports Sedan and the 2C Sports Car, Thirdwigg Motors was ready to start exploring the electrification of vehicles. Since the previous vehicles all had internal combustion, in order to more into electrification, some testing was required. The car features a single electric motor just forward of the rear axle. Geared up 3:1, the motor provides sufficient acceleration and top speed.

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Since this is track car suspension and bodywork are crucial for performance. The flat bottom of the car contributes to downforce, as does the rear wing and aerodynamic bodywork. The front and rear suspension is independent with torsen bars at each corner. There is very little wheel travel, appropriate for a track car. Steering is handed with the steering wheel, and the HOG just above the driver’s head.

The car was a good exercise to test a different drive mode in a LEGO car. Another electric car will soon be coming from Thirdwigg Motors, so this test vehicle was a good first step. The suspension was a little soft; it worked OK which was my experience with the Octan F1 as well. Frankly, the torsen system only works great for tanks in my experience, but maybe with a little work, it can have an application in future cars.

Until next time, happy building.

2C Sports Car


3T Sports Sedan was the inaugural car for startup Thirdwigg Motors, and the market requested another, smaller, sportier offering. The board of directors approved development of the 2C to fill this need.

Full gallery including instructions may be found here.

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I wanted to keep the scale and keep many of the best parts of the 3T in this design but change the body style and add a couple of features. Very early I decided on a two door with a mid or rear engine. I wanted to get a better transmission, so with this, I set of to work. I scaled the car to the Porsche Cayman, and started fitting in parts. I used the same suspension from the 3T in both the front and rear, which constrained how the driveline would have to be routed.

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It was at this point that the interior setup got a little complicated. When I started this car, the new Wave Selector was just release which optioned a lot of gearbox options. After seeing this great little transmission, I knew I had what I wanted: a four speed sequential transmission. After playing with some options, I place it in the middle of the car. I toyed with having the engine behind the rear axle, but settled on a mid placement. Nothing larger than a Flat 4 was ever considered. The four speed gearbox worked and a changeover axle ran to the front under the suspension where a simple rotation limiter was placed. The steering HOG and steering wheel had all of their mechanics in front of the transmission, so everything fit.

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I had intentions of having a ratcheting gear selector to work with the slick sequential  transmission. But I was running out of space. The center of the car was taken up with the transmission, suspension at each end, and placing one in the rear did not give a way to connect to the transmission. So the only place left was under the front hood. There were a number of great change over options that work well. I tried each. Some fit, some worked great, but each had the same problem: there was not good way to seamlessly integrate the “button” into the bodywork. I had visions of pushing on a grill to actuate the mechanism, but the grill was not very big, and required even more space than I was already using. In the end I decided to scrap the idea of a changeover, and use a simple rotary selector. It is not fancy, but it works well, and keeps the bodywork clean.

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Through out this process I was toying with ideas for the body work. Generally, I add parts as I like them, and when everything is placed, I rebuild the whole car with structures in place for all the final placements of critical internal and external parts. But this car had a large transmission in the middle which meant there was no frame running from the front to the rear. I added a structural frame under each door, and tried to build up the frame under the transmission as best as I could. It works, but there is still a little car flex under heavy center load.

First, the bodywork on this car works better for my eyes than the 3T, even though I tend to like sedans a little better. Second, the gearbox worked flawlessly. It was smooth, and even though I had the open the hood the change gears, the smoothness was worth it. Finally, the suspension worked great as it had proved itself in the 3T. It now adorns the desk at my work. Hopefully you enjoy it too.

Don’t worry, Thirdwigg Motors is already hard at work on the next car.

Happy Building.

2019


The final year of the decade closed here in thirdwiggville. As in years past, I am creating fewer MOCs than in years past, but with each completion, I am happy with the result. For 2019, I completed the following: Hunter Mk.III, John Deere 6130R, LEGO 42098 Car MOD, Iveco Skip Loader, Porsche 911 RS, and the 8081 110.

Again, I would have liked to complete a few more builds during a year, but I did increase from 2018, and small win.

Of the 2018 goals, here is what I accomplished:

  • A tractor (completed)
  • Car (Yep, two, and another tomorrow)
  • Skip loader truck (completed)
  • Something PF (Nope)
  • Another contest build (completed, Hunter MK. III)
  • An LMP car (Nope, but something is in the works)

I was very pleased with the Deere and the Skip Loader projects. Both were started in MID 2018, so it was nice to complete them. Both received lots of praise, which I was happy with.  I hope to create a couple more implements for the Deere before I take it apart. I was also great to do another 8081 MOD. Maybe more… Last year’s 3T Sports Sedans turned out a great, and Thirdwiggs Motors will be release another car tomorrow to flesh out the offerings a little more. Hopefully another MOC can be added in 2020.

For the third year in a row, I have completed only Bricklink.com order per month. My volume of parts is not expanding very quickly any longer, which is a great exercise in restraint. I only bought one set last year. I started using LEGO’s Pick-a-brick in 2018, and I am finding this more useful. Late in the year LEGO purchased Brinklink, and I am a little concerned about the changes that are coming. Bricklink.com has been one of the most significant websites to me, and I hope it will continue to be so.

For 2020 here are my goals:

  • Another Unimog!!!!
  • Something PF
  • An excavator
  • A mini helicopter
  • An LMP car
  • Thirdwigg Motors first EV!
  • 7 completed builds

My life is busy, so we will see how long I keep making MOCs. I am still motivated, and enjoy the builds. As always, check The Queue to see what’s coming. On to 2020, and another decade. Happy building.

 

8081 110


I have made it clear on a number of occations that I love LEGO set 8081. To celebrate this little unloved set, I created another MOD of this set.

Full gallery may be found here.

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A couple of years ago I did my first MOD of 8081, the 8081 4×4. It was the same bodywork of 8081, but I added 4 wheel drive, a front mounted V-8, and rear seats. It was a substantive change to the set. Likewise this MOD is so different from the first set, I am not sure if this is a MOD, or a MOC. I keep the design features of 8081, but not much from the original set still remains.

I took from front end of the 8081 4×4 which mounted the V-8, and the front bumper. Then I lengthened the chassis to accommodate a 4 stud longer wheelbase. The rear axle is the same, but the front axle needed to be modified to handle the increased weight of the truck. The center differential powers the V-8.

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Both axles are live axles that are suspended with a hard spring at each corner. Each axle has two stabilizing links on the bottom, and a Panhard rod for each. Steering is on the front axle. Combined with the Fischertechnik tires, the truck has significant suspension articulation.

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I added the bodywork last, but this did not take long as much of the design work followed themes determined by set 8081, though the pickup body style was planned from the beginning. The truck looked too big and black when I was done, so I added the roof rack/roll cage, the running boards, and a bull bar (though its little clunky).

The truck works well, and looks pretty tough. The suspension works much better than the first 8081 4×4. The new wheel hubs help the front a lot. Also the front suspension is better supported laterally than the first iteration. The Fischertechnik tires work great on this model, and while not LEGO parts, they are quickly becoming a favorite addition to my builds.

Throughout the whole project I kept asking myself, when is a build a MOD, and when is it a MOC. This project felt a lot like the later, but still connects to 8081.

Happy Building.

Porsche 911RS


There is a part of me that finds LEGO 42098 a little gimmicky: buy this truck that fits 5 cars but comes with 1 so you you build or buy more to fill the truck. But, these wheel arches are so awesome that I am going to do just that.

Full gallery including instructions may found here.

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After a rough first draft it was clear I was going to be able to steering and a Flat 6 into the car at a scale that would work for 42098, so most of the early work was on figuring out the shape of the car. I knew the car was going to be orange, and I wanted the little ducktail spoiler, so I modeled the car after the 964 version of the Porsche 911. The rear differential is placed two studs in front of the rear axle to allow for more room for the rear engine. I kept the normal LEGO engine parts rather than an axle engine like in 42098. The steering is simple in all in front of the driveline.

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The body work continued to take the most time. I used a great 911 MOC from Paave for many ideas including the seats and the front hood. Eventually, it all came together, after a lot of work on the doors, the roof, and the rear deck. The 911 is a beautiful car and getting all the details is so tricky. I almost feel bad for how critical I was of LEGO 42056. Almost…

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One thing you will notice is my use of both the 43mm and the 49mm tires for the rear of the car. I go back and forth on which ones I like best. Also, there was no way is was going to use the skinny 43mm tires for the front. They look silly.

This little car worked great, and functioned as intended. The shaping was off a little particularly with the rear quarter panels, the roofline, and the front headlights. But the shape of the 911 is so iconic that get all the details that have been refine over 50ish years is tricky. Either way if fits on the back of 42098.

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.