3 ms·

There must be a cheap way of automating the adding of milk... Some kind of really slow pump.

• xsmasher 17y ago
  There's a long discussion in the comments about how to automate the milk, but most of them are wrong. The goal is to raise the level of the milk on the model by, let's say, 1mm and take a snapshot. In fact the method of adding 3 tbs for each picture is wrong - because adding 3tbs may raise the milk level by less than 1mm when the current section of the model is thin and more than 1mm where the model has a thick profile. If you're doing it by hand, you want a scale on the side of the container and you should add enough milk to raise by 1mm for each photo. More wrong answers: You can't use a pump with a constant rate, for the same reason as above. Using a screw drive alone doesn't do that either, because if you lower by 1mm the milk rises more than 1mm, and has the same variance-due-to-thickness problem. Right answers: Someone proposed a black bar on the side of the tank, and a pump with constant rate of flow. That's not a bad idea - you can use the height of the black bar in the photos to judge what the current milk height is, and use that as the z position for the current heightmap. If your heightmaps must be evenly spaced, there's one more right answer - use a screw drive to lower the model into the milk and a drainhole halfway up the container and a pump to maintain the level of the milk. Now when you lower by the model by 1mm the level of the milk rises by 1mm on the model. Did I miss another right answer?