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View Full Version : Use a "tool" to cut an object


hattori
03-12-2006, 03:33 PM
I have spend a lot of time searching the forum but I just can't figure it out:
Let's say that we create a scene which has:
- A solid metal sheet (3d box)
- a cutting tool, like a rotating cutting diamond, animated to move along a path.
The tip of the cutting diamond has a specific shape, lets say U or V or spherical. It moves along the path (it can be straight, curved etc.) and the tip of the diamond leaves a trail on the metal, depended by the cutting depth and the tip shape, from a shallow pit to a full depth cut. The diamond may pass again near the path, triming the one side of the pit or the cut.

I imagine that maybe one way to do it is somehow make the vertices of the diamond to push the metal's vetrices. (of course this isn't a real cut, so if there is a different material beneath, it cannot be revealed)
Maybe the other way is to somehow a hidden diamond booleans the metal, but as it moves it leaves a trail behind. I think I should animate a loft, but if the cutting progress stop's and the diamond leave's, the end of the trail will be flat. I need it to have the shape of the tip.
And above all these the tip tilts - isn't allways perpendicular to the metal surface!
So, what really I need is a way to erase the volume of the metal when the volume of the diamond intercept's with it. (taking about volume, the material is actually a mesh with complex surface, so it must have volume)

Am also planning to use the knowgledge of your answer in two other similar animations:
- A knife passes on a cube of butter several times, each time lowering the butter according to the knife's edge shape. Don't care about the taken butter.
- A chiesel cut's a wood (with two material levels) several times, deepening the groove each time it passes.

Maybe am asking kindergarden stuff, so if you people don't have the time to answer exactly I welcome directions on what to read so I can figure it out my self (teach me fishing, not feed me and make me lazy!)

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