31–40 of 43 posts
I always lament that STL was the format 3D printing software ended up with (essentially a bag of triangles, usually in text format). Far better if slicers could take a true mesh, and not have to guess if coincident points on separate triangles actually amount to the same vertex, except of course for places where it doesn't!
I followed few links and ended up here but not sure if this is the one they used to collect data: http://geosurveysolutions.com/rapid-surveyor
http://www.lightware.co.za/shop/en/drone-altimeters/51-sf11c...
The main issue you will face is permission to fly drone at 100m or so. In US there are way too many laws to do this.
It looks like aircraft was flying at 200m for above data. London's tallest structure are at 300m+ so this is not doable in all areas.
Also note that software like pix4d and AutoDesk 360 can construct 3D models purely from drone images or videos. I'm not sure how much better LIDAR models are compared to models from structure from motion.
That's really cool. Wish it was printed in colour :) If LIDAR data isn't available, you can do pretty detailed 3D mapping with a regular camera and UAV, using photogrammetry/structure from motion. A Phantom or almost anything that flies with a reasonable camera will do. Of course the better camera you use, the better the results. Flight restrictions over populated areas apply, check your local legislation :) commerci…
Color 3D printing is pretty pricey still. For something of that scale you'd be looking at several thousand dollars, even breaking it down into small individual pieces.
There was some discussion of the LIDAR data-set when it was released: https://news.ycombinator.com/item?id=10379279
Earlier quoted context omitted.
Color 3D printing is pretty pricey still. For something of that scale you'd be looking at several thousand dollars, even breaking it down into small individual pieces.
Using clever hollow boxes can bring the prices down significantly: http://www.shapeways.com/product/PCVV6V9G2/y-garn-relief
For example, this was ~$100. https://raw.githubusercontent.com/joferkington/scipy2015-3d_... I tried uploading and pricing a "hollow box" version, but it saved less than $5.
However, for this one, using a "hollow box" saved ~30%, (it's a comparable size, but much taller): https://raw.githubusercontent.com/joferkington/scipy2015-3d_...
That's really cool. Wish it was printed in colour :) If LIDAR data isn't available, you can do pretty detailed 3D mapping with a regular camera and UAV, using photogrammetry/structure from motion. A Phantom or almost anything that flies with a reasonable camera will do. Of course the better camera you use, the better the results. Flight restrictions over populated areas apply, check your local legislation :) commerci…
Color 3D printing is pretty pricey still. For something of that scale you'd be looking at several thousand dollars, even breaking it down into small individual pieces.
I suppose no such ink/coloring-the-top-layer thing exists.
