4 ms·

Lego had its own digital designer, I remember playing around with it a really long time ago, seems its still around. http://ldd.lego.com/en-us/ http://ldd.lego.

Lego had its own digital designer, I remember playing around with it a really long time ago, seems its still around. http://ldd.lego.com/en-us/ http://ldd.lego.com/en-us/

amelius 9y ago
Interesting. I wonder why it hasn't been more popular. Also, it would be nice if you could order the bricks for a design by a simple order process.
- jayrhynas 9y ago
  You used to be able to, it even came in a custom box, but it looks like they discontinued it. http://ldd.lego.com/en-us/subpages/designbyme http://ldd.lego.com/en-us/subpages/designbyme
- yellowapple 9y ago
  LeoCAD seems to have a Linux version (whereas Lego's own designer does not). For me, that'd be a compelling reason to use the former instead of the latter.
AlphaWeaver 9y ago
It's terrible.
- bonzini 9y ago
  It's actually all but terrible. The constraint engine is better than all of LeoCAD, stud.io or mecabricks. The only issue is that the database of parts is starting to be outdated, and the database of parts that actually exist even more so.
  - tgb 9y ago
    Honest question: why do they need a constraint engine? Can't everything be done in exact integer multiples of the smallest brick size?
    - fhood 9y ago
      There are a lot of lego pieces with irregular shapes.
    - bonzini 9y ago
      You can build sideways whenever pieces have studs on the side, for example (the first brick with studs on the side was created in 1979 for headlights!). And also put sticks into hollow studs, "click" Technic pegs into holes, rotate Technic pegs and gears. And even place bricks and plates at an angle, using Pythagorean triples or careful rotations, and much more---this is what makes Lego fun for adults too! Despite relying on basically one size (1.6 mm) and its multiples, the Lego system is really complex. To an untrained eye it seems like parts are very specialized, but actually they are just carefully designed.
      - pavel_lishin 9y ago
        > And even place bricks and plates at an angle, using Pythagorean triples or careful rotations Can you explain this a bit more? I'm having trouble visualizing what you mean.
        bonzini 9y ago
        Pythagorean triples: for example, 3^2+4^2=5^2. For a length-6 plate the distance from the first to the last stud is 5, so you can place it at an angle of approximately 25 degrees, i.e. arctan 4/3, as long as there are no studs in the way (which you can achieve easily using tiles). On LDD you can place it horizontally, choose the rotate tool, and the constraint engine will automatically forbid invalid angles around arctan 4/3, where the plate would overlap with the stud, and "snap" to the right one. An example of a rotation is to build two rectangles of the same size, and then place the topleft-bottomright diagonal of one rectangle on top of the topright-bottomleft diagonal of the other. The diagonals don't have an integral length, but the lengths are the same so it just works.
        pavel_lishin 9y ago

Lego had its own digital designer, I remember playing around with it a really long time ago, seems its still around. http://ldd.lego.com/en-us/ http://ldd.lego.com/en-us/

amelius 9y ago

Interesting. I wonder why it hasn't been more popular. Also, it would be nice if you could order the bricks for a design by a simple order process.

jayrhynas 9y ago
You used to be able to, it even came in a custom box, but it looks like they discontinued it. http://ldd.lego.com/en-us/subpages/designbyme http://ldd.lego.com/en-us/subpages/designbyme
yellowapple 9y ago
LeoCAD seems to have a Linux version (whereas Lego's own designer does not). For me, that'd be a compelling reason to use the former instead of the latter.

AlphaWeaver 9y ago

It's terrible.

bonzini 9y ago
It's actually all but terrible. The constraint engine is better than all of LeoCAD, stud.io or mecabricks. The only issue is that the database of parts is starting to be outdated, and the database of parts that actually exist even more so.
- tgb 9y ago
  Honest question: why do they need a constraint engine? Can't everything be done in exact integer multiples of the smallest brick size?
  - fhood 9y ago
    There are a lot of lego pieces with irregular shapes.
  - bonzini 9y ago
    You can build sideways whenever pieces have studs on the side, for example (the first brick with studs on the side was created in 1979 for headlights!). And also put sticks into hollow studs, "click" Technic pegs into holes, rotate Technic pegs and gears. And even place bricks and plates at an angle, using Pythagorean triples or careful rotations, and much more---this is what makes Lego fun for adults too! Despite relying on basically one size (1.6 mm) and its multiples, the Lego system is really complex. To an untrained eye it seems like parts are very specialized, but actually they are just carefully designed.
    - pavel_lishin 9y ago
      > And even place bricks and plates at an angle, using Pythagorean triples or careful rotations Can you explain this a bit more? I'm having trouble visualizing what you mean.
      - bonzini 9y ago
        Pythagorean triples: for example, 3^2+4^2=5^2. For a length-6 plate the distance from the first to the last stud is 5, so you can place it at an angle of approximately 25 degrees, i.e. arctan 4/3, as long as there are no studs in the way (which you can achieve easily using tiles). On LDD you can place it horizontally, choose the rotate tool, and the constraint engine will automatically forbid invalid angles around arctan 4/3, where the plate would overlap with the stud, and "snap" to the right one. An example of a rotation is to build two rectangles of the same size, and then place the topleft-bottomright diagonal of one rectangle on top of the topright-bottomleft diagonal of the other. The diagonals don't have an integral length, but the lengths are the same so it just works.
        pavel_lishin 9y ago