Animated LEGO BR23 engine with moving piston rods

Animation of the LDRAW CAD file. BR23 LEGO steam engine as built in 2006. Wheels are from BBB - Big Ben Bricks (THANKS BEN!).

Thanks for 50000 views (Nov - 29th 2011)

For more info visit my Brickshelf Gallery including CAD files for these models.
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=143248

Category:

Entertainment

Tags:

• BR23
• LEGO
• BBB
• 9V
• animation
• train
• Dampflok
• engine
• CAD
• LDRAW
• Eigenbau
• Lok
• animated
• Render
• POV

[Stoettax]

what programm did you use?

[Stiegsfeld]

@Stoettax

Please have a look at my exhaustive answers as written below (11 month ago).

Basically:

LDRAW=>PovRay=>Windows XP's "Movie Maker

[Stiegsfeld]

I used LDRAW to generate the model. Then I rendered it with Pov-Rayversion 3.6.

PovRay offers the possibility to render several pictures under regard of a time counter.

For each time step one picture is generated.

The engine has been built in LDRAW under regard of subgroups (track, engine body + tender body, each axle with wheels, connecting rods + piston rods).

Defining the rotational speed of each wheel (dependent of diameter), the position of the conneting rod (sinus graph) was tricky

[Stiegsfeld]

most complicated was the position and pendulum like angle of the piston rod.

This needs some slighly advanced knowledge of mathmatics.....

=> In result 800 pictures were generated and then made to a film by the primitive Windows XP's "Movie Maker" software.

I am not fully pleased with the speed of the animation. But the render process took up to 5 minutes per picture.

Hopefully I find more time for more advanced animations in future.

Leg Godt!

Ben

[alteragnostik]

That's awesome!

Are you going to build a real model of it?

[streincorp]

SUUUUPER!!! that's amazing!

[dogrichmancat]

@albrainya really?!?? you must be the luckiest kid in the world. do you get previews of new sets and stuff?

[Dauntless07]

You're so lucky man, do you know how much Lego costs? You get yours free? Dang.

[albrainya]

You probily wont believe me but i have that im not kidding and the cool part is that no  one else can get it an im 8 im very lucky becuse my friends dad works at a lego factory and he gets me a set everyday