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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)
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)
Could you see this machine within the next 75 years?
Qelery
A "Home Diagnosis Machine" that looks like a mini MRI machine in your home that you will use daily. First the machine takes a drop of your blood and saliva as a sample. Then you lay on the machine as it brings into the tube, just like an MRI machine. It scans you body for about 5 minutes, taking 3D images of your body and examining the blood. It would be able to tell you everything from your blood pressure, to cancerous tumors, to what vitamins you lack. Your results will be dispalyed on a touch screen. Everything that needs your attention will be shown to you. It will diagnose you and display what medication, vitamins, or medical attention you need. You select the medication you need to buy and the machine will send it to your local pharmacy.
Answer
Sure, why not? Except that it will probably not look like a MRI machine at all and won't need 75 years to come to market. Like almost any product, this hypothetical device would have to be user friendly as well as have user appeal. That means no big, bulky machines in the house/apartment. I would envision it as more of a solid state scanner that could be placed on the wall, ceiling, shower, door frame or even in your bed frame (basically anything you walk past). Depending on how many points of origin the scanner(s) has (or perhaps it uses some kind of depth sensitive radiation) it can then scan you in three dimensions while you are stationary. There are already consumer available 3D scanners that place objects on turntables and produce a 3D image. So there's the technological component.
I can also see such a device coming to homes due to society's increasing paranoia and obsession with personal health and hygiene (I think this borders on mass psychosis). Basically anything that promises to be of some benefit to personal health will be easily accepted by consumers even if there are other potential drawbacks.
Factors against the invention of such a device would likely have to be economic or political in nature since social acceptance and technology are already in place. Also, a newer and better method might also be discovered in that time.
Sure, why not? Except that it will probably not look like a MRI machine at all and won't need 75 years to come to market. Like almost any product, this hypothetical device would have to be user friendly as well as have user appeal. That means no big, bulky machines in the house/apartment. I would envision it as more of a solid state scanner that could be placed on the wall, ceiling, shower, door frame or even in your bed frame (basically anything you walk past). Depending on how many points of origin the scanner(s) has (or perhaps it uses some kind of depth sensitive radiation) it can then scan you in three dimensions while you are stationary. There are already consumer available 3D scanners that place objects on turntables and produce a 3D image. So there's the technological component.
I can also see such a device coming to homes due to society's increasing paranoia and obsession with personal health and hygiene (I think this borders on mass psychosis). Basically anything that promises to be of some benefit to personal health will be easily accepted by consumers even if there are other potential drawbacks.
Factors against the invention of such a device would likely have to be economic or political in nature since social acceptance and technology are already in place. Also, a newer and better method might also be discovered in that time.
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Title Post: What can I use to cast a mold from stone without hurting the stone?
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Rating: 100% based on 99998 ratings. 5 user reviews.
Author: Yukie
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