Chain/track animation in LDCad

RE: Chain/track animation in LDCad
(2016-05-17, 17:57)Roland Melkert Wrote:
(2016-05-17, 13:04)Gret Rumpel Wrote: Hi all,
I am wondering is it possible to animate chain/track in LDCad?
If yes, any help is highly appreciated.
I searched the forums and found nothing on that particular subject.

Yes but you will need to write a lua script for it. Its job would be to calculate the location and orientation of each chain link on a per frame basis.

The good news is you can probably do this for movement along just one link and then repeat that over and over an optical illusion would make it look like the links go all the way around.

My older LD4DStudio program has an example project animating a chain using scripts but that's not lua and a very simplified one.

In short it is a challenge but it should be a fun thing to figure out Smile
Hi Roland,
Thank you for the fast reply. Actually I hoped for you to answer Smile
First of all congratulations for LDCad effort. It's a great piece of software.
To be more specific I'm working on a revised version of 42042 Crawler crane's track drive. The factory layout features jointly driven tracks thus it could go only straight forth and back.
I used LDCad to build a complete model of a real track drive which consists of two motors, transverse subtractor and two reductors  (one for each track).
I managed to animate all gears - from input drive shafts down to drive sprocket wheels on the tracks.
And here I stuck Huh
I'll try to post some pictures or even a clip if I manage to export it Wink
So I really hope you to be more specific on how to animate tracks.
How to get instance and manipulate a single track element?


To be honest I am new to LDraw and 3D modeling.
But in my opinion LDCad has a fast learning curve which helped me a lot.
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RE: Chain/track animation in LDCad - by Gret Rumpel - 2016-05-17, 20:55

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