Algodoo

The scene is a great idea, but as you mentioned, the rope occasionally goes crazy and flips the entire machine in the air! But even before the rope went ballistic, I was not able to figure out how to make a 3D object with the controls that you specified. Can you maybe give more details? Thanks!

EDIT: I tried many different settings for the rope, and I was not able to stop it from "exploding". Maybe a better way to make a MakerBot 3D printer would be to spawn water from a nozzle and then have it freeze as soon as it touches the surface of the moving X/Y/Z table. I'm sure there must be a better way than trying to use rope!

I think the best way to do this would be to take a look at one of kilinich's scenes where he uses an object to respawn the object with a new surface, and instead drop small blocks onto the object. I can't see the code being overly complex to modify, but I would need to take a look.

In real life there would be a Z axis, but it is a 2D simulator, so I only made an X and Y axis. I was also thinking of making the tip like the brush tool or something like that kind.