[TC20] 851's big brother

[BrickBuildingFox]

for more details see here 851 on Bricklink

Last weekend was a long one, and I got some precious time to build. Since the contest was already in the air, I used it to find a model and start a little bit... I hope that's not against the rules

Unfortunately, I own neither the model nor the antique tires. Therefore I decided to use new (current) ones. They are slightly bigger, so that my model has to be a little bit larger.

My personal goal for this build is to have a modern interpretation of the classic 851, rather than stay extremely close to the original (even if it costs a few points).

Here are some impressions:

 

[Jundis]

That was my initial idea also before I switched to a system model remake :-)

But I would definetely try to use a pendular front axle instead of a fixed one. Also, they rear axle seems to be to wide...?

[BrickBuildingFox]

20 hours ago, Jundis said:

Also, they rear axle seems to be to wide...?

Yes, you are right, I already reduced it by 2 studs and looks much better now.

20 hours ago, Jundis said:

But I would definetely try to use a pendular front axle instead of a fixed one.

Hm..., I didn't think of it but I like the idea! Also, I want the turning radius to be as small as possible.

[Jurss]

Pendular axle for rebuild is mandatory :)

[BrickBuildingFox]

New functions implemented:

On 5/27/2021 at 7:10 PM, Jurss said:

Pendular axle for rebuild is mandatory :)

Got it

I know, the distance of seat and steering wheel is too far... something I need to change...

Next step will be to design the front hood and add a fake engine...

[Jurss]

1 hour ago, BrickBuildingFox said:

Got it

[BrickBuildingFox]

I modeled the front and try out different lights... not sure which looks better.

This one is closer to original 851:

This use modern parts, and I use the same for the red light in the back...

What's your opinion on the lights?

[1974]

First one, but move them one stud inwards. Also, loose the gear for the steering wheel. Yes, on it's the original but when I got my first pulley in 1980 that was one of the first things I replaced

There is room for a 4L engine, no?

Also, needs the exhaust stack and the single rear light

[BrickBuildingFox]

16 hours ago, 1974 said:

First one, but move them one stud inwards. Also, loose the gear for the steering wheel. Yes, on it's the original but when I got my first pulley in 1980 that was one of the first things I replaced

There is room for a 4L engine, no?

Also, needs the exhaust stack and the single rear light

Thanks for the advice, I am happy with the new look. Rear light is there and now I also put the exhaust stack back.

There is even space for 6L engine and the hood can be opened now... maybe I will move the gray 15 and red 13 beams from the hood to the chassis.

Previously I choose the gear as steering wheel, because it is a very iconic design element of the original... after comparison I agree it need to be replaced.

I am happy with the design. For the next iteration I need to improve the statics of the chassis a little bit.

Somehow, I can only focus on either design or statics when I build but not both

And then, there are still 5 different accessories left to be designed.

[1974]

Very cool! Are you gonna make some of the add-ons from 8888?

[BrickBuildingFox]

20 hours ago, 1974 said:

Very cool! Are you gonna make some of the add-ons from 8888?

Thanks! Just discovered the 8888 Idea book. Didn't know there are even more accessories for 851.

In the original 851 instructions there are 5 different ones and I planned to build all of them.

[BrickBuildingFox]

Update: Mower ready, but it is quite heavy and the lever mechanism need to be much stronger to work smoothly.

 

I also designed a small plow, but I am running out of red parts

 

[BrickBuildingFox]

Because there is a direct link in the voting topic, I decided to repost the final entry with pictures here:

14. 851's big brother

Original: 851

Functions:

• Pendulum axis (front)
• Inline 6 cylinder
• 3-point hitch (working like original model)
• rotating mower
• openable hood

Pictures: