Hi,

I noticed what seems to be a discrepancy in the small control stick base (4592.dat): the notch is not deep enough to allow the stick to rotate a full 180 degrees, although the real part does permit this behavior. However, this may be partially due to the snap meta being set too deep—in the real part, the rotational disc of the stick sits flush with the top of the base, rather than being concentric with its hemispherical portion. (Still, this adjustment allows the stick only about 174° of rotation, rather than the full 180° sweep—or even slightly more—available in the real part.)

(using LDraw parts for training!)
https://www.brothers-brick.com/2019/12/0...uJyz0E8XNE

This one's really just for fun; I was able to figure it out by eye to within half a degree, and I think it's good enough. But I'm still curious how you'd go about finding the "right" answer…

   

So our task here is simply to have our spaceman get a grip on his control stick (you can see he's already grabbed it in the right hand, so we just have to figure out the left). To do this, we need to figure out the angle of four different rotations. The control stick has to be tilted upward (1) and, along with its base, rotated inward (2), while the spaceman's arm has to pivot at the shoulder (3) to meet it. Finally, the hand has to rotate at the wrist (4) so that it's aligned with the control stick. (This last one is tricky because the hand portion—the actual "clip", or claw—is not aligned with any axis of the part itself, and the part's origin isn't located within the hand but rather at the wrist.)

Because we are perfectionists, the ball of the control stick should be centered longitudinally within the minifig's hand, but flush with its top edge. Since it's an 8-LDU sphere, the center of the sphere should be 4 LDU below the top edge (and again, that's relative to the hand itself, not the part overall).

I was able to get close on the first 3 steps (see below) by using successive approximation along with my intersecting circles method, then made some final small tweaks to account for the wrist rotation—again, good enough, but necessarily imprecise by nature. Guess I'll have to break out the trigonometry again to find the truth!

   

I liked the idea of an animated model tour from a minifig's perspective a lot (see  https://forums.ldraw.org/thread-23512-po...l#pid34790)

So I made a start on a generic script for it, to be included with LDCad 1.6c

Many things can be improved, but I'm very proud on the fact this was 'doable' without finding any bugs out of the box.

Attached a demo.

Any feedback / ideas on improvements are welcome.

A appropriate (big) model for testing purposes would be appreciated too.

edit:
This animation takes over the camera during playback. You can disable/enable that by clicking the 'CAM' label in the top right session panel in animation mode.

Attached Files

  tour.zip (Size: 3.21 KB / Downloads: 50)

New forum user, novice LDraw (1.6c) user.

I encountered an odd problem after more or less completing a map model for my D&D game. for the floor tiles i use several Plate 4x4 (3031.dat) in slightly alternating colors.
The problem is that when i try to rename a group to something more appropriate for D&D like Kitchen or Garden, by right-click-> Properties, the group disappears from the model. i can only bring it back via the undo button.

Is this a bug or a feature, and if either, what can i do about it?

Hello all,

I've finally finished adding snap/mirror information to the 1901 library.

Still have to process 1902 though 
update: It now includes 1902 and some extra donated/requested parts.

Download:
http://www.melkert.net/action/download/shadow.sf
And replace the one which came with 1.6c (close the program first)
Which is located in the seeds subfolder at the same place as the main executable.

Some QA would be appreciated especially concerning mirroring, as I tend to forget about that.

we got a message on the LDraw Twitter, that the LDView link in the download section is not current, it links to SF instead of the now maintained https://github.com/tcobbs/ldview/releases

Orion, can you change that? Thanks!

Hi there,

my next model I'd like to contribute is 6379 Riding Stable (from 1986), it should be OMR-compliant.

Known issue: horse sticker across three bricks on roof is missing.
Done with LDCad 1.6c (Linux64).

Edit: tyres were not rubber-black, please find updated version below.

Regards
Stefan

Attached Files

Thumbnail(s)
   

  6379-1 - Riding Stable.mpd (Size: 14.26 KB / Downloads: 10)

Hi there,

this time it's the 1988's Test Car Technic model 8865. It should be OMR compliant, but there are known issues:
- Small mismatch for 16-technic-brick (3703) which connects the front frame to the roof in the last step. As far as I can see and calculate with CAD, this seems to be "desired margin" in the real build. Did I something wrong, is there a way to make it look "better matching"?
- The steering axle angles with two universal joint (2x 3712+3326b+3712) in steps 16/17 are not acceptable. I looked at the angles provided by "Selection Info" without luck - I will fix this as soon as possible and would welcome any suggestion.

Done with LDCad 1.6c (Linux64).

Thanks in advance for any improvement suggestion!  

Regards
Stefan

Attached Files

Thumbnail(s)
   

  8865-1 - Test Car.mpd (Size: 43.27 KB / Downloads: 10)

Hello,

here you can find the official press release: https://www.lego.com/de-de/aboutus/news/...-bricklink

Since the software Studio is using (kind of) LDraw parts...

Rolf