![]() You don't want to run around looking for materials or move your mold once you've started. Make sure everything is in place and your environment is prepared before you start. Mold making materials are expensive and can be difficult to handle. There's nothing worse than forgetting to put mold release between the two halves of your 2-part silicone mold (speaking from experience) It might help to draw out each step or write a list. Learn from your mistakes, keep practicing and remember to think through all the steps before you start mixing your silicone. I've messed up countless molds and casts for every one I've gotten right. The more molds you make, the better you will get better at picking mold types and placing your part lineĭon't get discouraged if your first mold doesn't work exactly right. Is it really complicated with undercuts or no good place for a part line (a deer head with antlers)Ī glove mold or 2-part brush-on mold is probably your best choice Is there more than one side and it is more or less one main block of material? (like a head) Is it flat or one sided with a shallow height? (like a medallion or coin) 32 They are also heat resistant and able to handle temperatures up to 430 degrees. The set of four is made from nonstick carbon steel with a PFOA- and BPA-free coating that prevents food from sticking to the pan. If this is your first time molding I would suggest picking something very simple until you get a hang of the process. Each mold is about 4 inches and features a handle that folds flat, making it convenient to store. Start by examining your part from all angles. The type of mold you choose should be driven by the geometry of the part you're molding. How do you know you're picking the right type of mold for your part?Īs we discussed earlier there is a family of mold types to choose from. Now that you have a basic understanding of what mold making is all about you should put this knowledge to use by making your own mold! rotational casting - rotating mold while casting to create hollow final model.air vent - passage for air to escape mold chamber during casting process helps avoid trapped air in casting.lifecast - mold made with a living original.undercut - area of original that overhangs and can create difficulties casting.mold release - release agent applied to original and mold to facilitate release of original and casting from mold.part (split) line - borders between two sides of multiple part molds.key - registration points for lining up sides of multiple part molds and holding them in place for registering mother mold to silicone and silicone to silicone.runner (sprue) - hole that casting material is poured into.mother mold (shell) - hard exterior covering to give brush-on molds structure while casting.box - container for pour molds (mold walls).original (prototype/part) - What is being replicated.flashing (flash) - extra unwanted material left on casting as a result of casting process.casting (cast) - replicated part made of final material.mold - Overall system of parts used to replicate parts.
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