The Old Lady is ready

I have finally completed it! Not only I have managed to assemble my Christmas present completely, I also have taken photos so there is nothing that stops me blogging about it.

So what is it? The most aged member of the Big Car series, the "Auto Chassis" from 1977. It was missing some parts but the seller was so kind that he sent all of them to me. By the way I am very happy with it. It feels like new, I did not find any broken or yellowish parts. My old Technic playing sets from the 80s are in a much worse shape by now.

After putting it all together I found comparison against the other Big Cars natural. Some numbers to start with:

• this is the oldest of all, sold from 1979
• this has the fewest pieces, 610

This is also the one to contain the fewest special parts. For example the front suspension is made of bricks and rotating plates. There are no springs but there are nonetheless interesting details. For example the suspension has a hole in the middle to accommodate the power train from above. The gear rack moves only sideways, not back and forth with steering. Unlike most other Technic models from the age it has an intermediate arm that makes this possible. Another interesting property of the steering is that it is impossible to fit the gears together such a way that the steering wheel is completely horizontal when the wheels are parallel to the chassis.

The power train makes a very massive impression, the four big cylinders after each other would be enough to drive a boat. The gearbox has two gears, in first gear the pistons literally "fly" - I am not sure that this lasts long under heavy playing. In the rear there is no differential. Instead, there is an universal joint keeping the two sides together. I think this can be really easily broken by the torque of the large wheels.

Besides the relatively simple basics there are a couple of interesting details. The first seats can be adjusted forward or rearward with a rack mechanism. The middle part of the rear seat can act as an arm support or can be hidden.

Until I saw it from photos only I did not realize that the engine is shifted one stud right from the centerline - I believe this gave more room to the exhaust and the gearbox. The proportions of the car are also somewhat surprising, it is not wide but very long, probably longer than any of the sportier subsequent models.

One more thing: the assembly instructions come on both sides of a single foldable sheet in 10 main and 27 secondary steps. For comparison, the instructions for the 8448 have more than 150 steps (and pages).



Now if only I would get an 8860... More photos in the album as usual.

Automatic gearbox from Sariel

What is a Lego gearbox good for anyway? How about an automatic one? Sariel has always great ideas, this video explains everything:



The original entry on Sariel's blog.

8880 Super Car

Meanwhile I got a 8880 car in my possession too. I was thinking for a long time which one to get from the many super cars. Although I like the others too, the 8880 is special because it is still made of studded bricks and it has many working parts. Finally I have managed to get one.

The car has so many interesting details that I rather do not spend much time on how it was built. As a short summary, Grandma was here and played with the kids so that I can devote my day to it. At the end I succeeded.


How does it work? First, it has double wishbone suspension on front and rear. On the image above the blue items are the front wishbones. All wheels are driven, universal joints carry the rotation between the wheels and the differentials. The car has three of those - above you can see the front one but there is one in the rear and one in the middle too. In contrast to real all-wheel-drive cars there is no self locking feature, wheels can spin easily. But an owner of a Lego car can live with that.

The above picture also shows the gears of the gearbox. It is more sophisticated than
classic Lego gearboxes: there are freely rotating gears on two axes and moving the lever will attach them to the axles through special transmission rings. This set has 4 forward gears and no reverse but it has a fully functional neutral state. The lever can be operated the same way as on real cars. On the picture below shows the lever in fourth gear.


The car sports all-wheel steering as well: rear wheels steer in the opposite direction and less than the front wheels. It requires a good amount of force, there is no power steering :)


At the end of the drive chain there is a V8 engine driven by a real chain. The amount of moving parts can be felt when we try to push the car - it is much harder than with the 8458 racer. Engine brake is also realistic - the selected gear influences it a lot besides the speed of the pistons.

If you are interested in more visit the album too.