Hello Javier,
I just made a quick review of your update. It's better and I like it
Some notes:
- Some Minifig arms are still incorrectly snapped; eg right arms of white and red Minifigs in set 6985 (and maybe others too, I didn't check them all). What I would do is simply, for each Minifig and each arm: select the arm + hand + object in hand if any ; move them away from the Minifig torso; and finally move them again on the torso, letting LDCad perfectly snap them for you on the torso.
- 1498 Spy-Bot : I would include the two 3937 parts in the legs LDRs (one for each leg).
- LDRs: I think they are better much better like that! To be perfect IMO, the axis of rotation of the LDRs (ie, the origin of their coordinates) should be centered on the hinge, when there is one; this is the case on many sets in OMR. For example, your set 6985, LDR "6985 - Roof.ldr": the 4213 would be at coords (-36,-4,0) for this to be fine. This way, when you go back to the main LDR, you can rotate the roof on demand without having to re-snap it to the 4315 afterwards ! (many of the sets in OMR follow this rule)
- Finally, an open question for anybody willing to answer: what should the Minifig head z-coordinate be, when the torso is at (0,0,0) and the Minifig has air tanks ? I just realize (I had forgotten that) that different sets already in the OMR, differ on this point: the most common value is 27 (it's the one I use), but some are at 25, while 28 (as you used Javier) is the one permitting the 3838 and 3626 parts not to overlap, but seems a little too much IMO...