I managed to build a very smoothly operating articulated shaft (constant velocity joint) using only lego parts. See my project page at http://rcvj.reininghaus.org for details including a HD youtube video https://youtu.be/okMCTcgzmAw.

Attached Files

Thumbnail(s)
   

  RCVJ.ldr (Size: 10.74 KB / Downloads: 3)

How in mathematician way I can detect angle of rotation? From Line type 1 as simple|primitive file reference. The generic format is:

LeoCAD offers to save lcd file. I assume this is the LeoCAD format, because LDView shows parsing errors when opening this file. The file->export menu offers formats 3D Studio, Bricklink, CSV, HTML, POV-Ray, Wavefront. Please guide me how to export in LDraw format.

Hi all,

I have a model that features 2 minifig chains, one gold with 5 Links and 2 with Light Bluish Grey with 21 links.
These:


We had some discussion earlier about the short one here here https://forums.ldraw.org/thread-20396.html where Philo points out that the short one is probably better modeled by hand rather the LDCad do the curves and calculations.

The template in LDCad only has 4 links. I am unsure how to add a fifth, let alone make one of 21 links.

I'll try to model by hand, but any help there would be appreciated ;-)

Perhaps a template with both ends can be made with 5 and 21 links?
Are there any other lengths? I thought there was another available, but might be mistaken.

Perhaps add this one too, while we are at it?
https://brickset.com/parts/design-15532

Thanks!

Hi folks,

Has the wheelchair been made?
https://www.bricklink.com/v2/catalog/cat...T=S&C=86&O={"color":86}

Before uploading files to the OMR site I let mpd center check for OMR compliance and apply corrections as needed.
From time to time there is an annoying message "False - unresolved reference free", which means that the file contains unresolved references. But that's all, there is no further information given by mpd center about these unresolved references. So I struggle kind of bit, respectively fail sometimes to localize and correct these unresolved references.

Question: Is there a way to exactly find / display / determine unresolved references?

As an example you may have a look to Philos Frankie:

Hi all,

I would like to use the 322 color (medium azure).

According to here, it should be available, but it is an "unused" color in MLCAD and it shows as brownish in ldview.

What am I doing wrong?


Thanks for the help.

Is this game related to LDraw in any way?

http://store.steampowered.com/app/552100/Brick_Rigs/

I have an LDraw file that I want to create instructions for. However, when I load the file into LPub it seems like it goes into a loop and keeps reloading the model (and its submodels). I have completely no idea what the problem is, the file works fine in LDCad. So, maybe there's a weird thing in the file (which is certainly possible because I have been manually editing some things in the file), but I have no idea if and where.

So if there any software that goes through and LDraw model to check if there are no errors and such?

LPub 3D shows no custom parts in Partlist.
How can I change this?