Find baking recipes for cake and much more at Wilton. With tons of recipes to choose from, youre sure to find the perfect Wilton recipe for you. From 3. D to Reality Making a Resin Sculpture From a CG Character 1. Steps with Pictures. The torso of this model was a challenge its big and its littered with places to trap air places where I didnt want to put vents because Id later have to cut those parts off and risk making a mess of some of the curves of the model. I thought about it a while and realized that if I rocked the mold when it was about 23 full to allow any trapped air out, then followed that by filling the mold completely, I could probably get away with one sprue placed in an area that wouldnt be so critical shape wise during assembly. The sprue ended up poking out one side of the mold usually, the sprue runs along the seam of the mold which is OK because it doesnt lock the casting in place. Sometimes you have to do things a little differently A few notes on silicone Liquid Silicone varies in viscosity from pretty thin, to VERY thick. If you dont have vacuum equipment, youre going to want to use as thin a material as you can that still meets your needs. Viscosity of the liquid silicone is measure in unit called  poise and indicated by a number followed by cps centipoise. The higher the number, the thicker the material, and the harder to degas so keep that in mind when deciding what you want to use. Once again, take advantage of the experts at your supplier of choice they deal with this stuff all day. Less viscous silicones will mix easier, pour easier, trap fewer and smaller bubbles and degas on their own more readily. The downside to them generally is that they dont make as durable a mold. The hardness of cured silicone is measured on a durometer and represented on the Shore A scale so usually looks something like Shore 2. A where the 2. 0 represents the hardness of the cured material. The higher the number, the harder the silicone will cure. A mold made from silicone that has a high Shore A rating is more difficult to deform accidentally when clamping and tends to be a bit friendlier to work with once its been made. If, however, I were going to make a mother mold type mold, Id probably use one of the softer silicones in the 3. Manual De Funciones De Un Operador De Call Center. A and below range. More on hardness here. For this project, I used a product from Shin Etsu KE 1. T a clear silicone that cured to a Shore A hardness of 4. This stuff is THICK think cold honey and you have an idea just mixing in the catalyst was a workout by itself lol. As you can see from some of my mistakes failing to degas this silicone adequately will result in poor quality molds but then proper degassing will yield very solid molds that can take a lot of abuse. From the Shin Etsu Data Sheet To eliminate voids within the rubber before cure, air entrapped during the mixing cycle must be removed. To accomplish this, place the mixture under a vacuum of 2. As full vacuum is applied, the material will froth and expand about 4 times its original volume lies Expansion can be MUCH more Joe, crest, and eventually recede back to its original level. A film coating along the container sides should be evident above the original volume. The deairation cycle is complete approximately 1. Should the container size used be inadequate for deairing the mixture, the vacuum may be broken during operation to reduce the bubble formation. To remove air without using a vacuum system, place the mixture in a freezer overnight. The silicone will stay liquid but will not react to cure. Processs.JPG' alt='Easy 3d Character Modeling Programs' title='Easy 3d Character Modeling Programs' />Daz 3D, 3D Models, 3D Animation, 3D Software. Daz a goto solution on CAPTAIN AMERICA, THOR, and IRON MAN. Ron Mendell. Built for Mac. Cheetah3D is a powerful and easy to learn 3D modeling, rendering and animation application which was developed from the ground up for Mac. Click Below to Subscribe watch more Free Software Reviews http You can find download links and more. D3D CAD Systems CreoElements Direct Easy to use and free 3D CAD modeler. It does not use history based modeling, instead click directly anywhere on the model to. Use Blender to create beautiful 3D models for video games, 3D printing, house design etc. No prior knowledge required. The air bubbles will slowly rise to the surface. I never tried the freezer method so I cant vouch for its efficacy. What I CAN vouch for is that with degassed silicone, the few bubbles introduced during a pour would rise right to the top and with inadequately degassed silicone, the bubbles would just hang in suspension and not move I have no idea why. Be sure to leave plenty of headroom in your mold barriers if you plan to degas your silicone in the mold it wont foam up as much as it did if you degas it before you pour it, but it willfoam so be sure to babysit it while you degas it to prevent it from foaming out of the mold dont ask me how I know. After experimenting with both methods, I found that I preferred to degas the silicone in a larger container and pour it as opposed to doing it in the mold. When degassing silicone, dont leave it unattended even for a few seconds. It WILL expand to many times its liquid volume at least 3 to 5 times and probably more. Additionally, you need an almost PERFECT vacuum to degas effectively which means a high quality vacuum pump an HVAC evacuation pump wont cut it. It takes about 1. The beauty of translucent silicone is that you can see the bubbles. The difference between egassingand just oaming upa little vacuum wise is very small. If your vacuum pump and chamber cant boil water, youre not going to be able to effectively degas very thick silicone, and only partially degas the thin stuff. Also, in the process of degassing, you can pull a vacuum, wait for the bubbling to slow down then POP the vacuum to burst surface bubbles then pull a vacuum, wait for foaming to slow down, then POP the vacuum again do this about 3 times, about 3 minutes apart. The ZIP file at the end of this step is a video of the de gassing process. TIP  I found that putting the poured mold in direct sunlight really sped up the curing of the silicone which can take several hours and also had the added benefit of making bubbles rise much more quickly as well. On molds Its worth mentioning again but detailing the clay edge where it intersects the model is very, very important. This will become the parting line on you model. Its also critical to clean all excess clay off of the model otherwise it will become part of the mold, and subsequently every casting you make. I use a Lecron carver and other dental laboratory tools they seem to work the best for cleaning up this area of the model, and theyre pretty inexpensive. Its also important to make the ledge around the model as smooth as possible this will help make sure that your molds are easier to clean, and seal more effectively.