What can I use to cast a mold from stone without hurting the stone?

3d scanner for 3d printing image

disciple

I'm new to this, but does anyone know what medium I would use to make a mold from a stone. In other words, There is an old building with a beautiful design sculpted in to it. I want to copy this design. I know there is a material out there that I can press against the original design and make a mold of it and then cast the design in plaster. I just don't know what material I would use to do this without hurting the stone.... Help!!!

Answer
I think the sculpey or any clay will work. If you use normal clay, any residue left will dissolve in the next rain, just don't use brown clay on light stone... if you use water based clay you would have to cast your plaster into the mold while the clay is still wet.
As the clay won't be very stable just on its own, you should consider making a mother mold on top of that. That is a hard shell, which just gives support to the soft part of your mold so it doesn't deform. It depends on the size of what you want to copy if you need it. You could make the mothermold from plaster bandages, but don't put plaster directly on the stone.
Before you start, consider carefully the shape of what you want to copy and where undercuts are and where you have to put in parting lines. What technique you use for mold making really depends on the exact shape of what you want to copy. If the structure is something complicated, you may want to practice how to make molds from more simple structures first so you are aware what causes problems and get some experience in how to solve them.

Another completely contact free method is if you happen to be at a university where they have a 3D laser scanning camera you can borrow, you could use the 3D laser scanner then make a model of your structure in the computer from the scans. That you could print out using a 3D printer. that way you can scale the model to any size (though anything large will be expensive to print)

How can i make animation movie?

derj

hey guys, Can please somebody help me how can I make my own animation movie.

Answer
There's some ways to approach this:
you can download either Monkey Jam for 2D animations (http://www.giantscreamingrobotmonkeys.com/monkeyjam/)
or
Blender for 3D animations (http://www.blender.org)
both free and easy to find.
There are others but these are the pick of the free litter.

**If you like to animate and would want to continue, you should invest in a Wacom Tablet (at least 6" x 8").

Or if you want to go old school...
1. You can also buy paper (print paper easiest to find)
2. Draw it frame by frame
3. Scan them into a computer or record them with a camera then recording that onto the VHS (If you use a camera, then stop here).
4. Import the scans into QuickTime as a sequence
5. Then export it as a QuickTime movie
6. Import the movie into iMovie or Windows Movie Maker 7. For sounds (www.sounddogs.com).
8. Export the movie as a another QuickTime movie

**These may not be the best things to use, but it can get the job done.

**Doing it old school would require
-Field Guide (You can draw one yourself): How much space your animation will take and make sure not to exceed that space

-Light Box $40: Drawing it frame by frame with this box will keep your animations from going out of proportion.

-Peg Bar $3: Place it taped onto the light box. Keeping your animations from moving all over the place unintentionally. If you are going to scan them onto the computer, then I suggest you place the peg bar TAPED onto the scanner.

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