Before vacuum casting, we need to make a original mold,the tolerance we can reach is +-0.1MM. After checking and assemble, we will start to make a silicone mold. The mold for Vacuum casting can make around 20 times.
The tolerance on vacuum casting parts can reach +-0.15MM.If the size on vacuum casting parts are more than 1000MM,the tolerance on some area can reach +-0.2MM,Just like Car bumper or some large medical products.