Methods for producing three-dimensional objects

A method of forming a three-dimensional object, comprising:

• (a) providing a carrier and an optically transparent member having a build surface, said carrier and said build surface defining a build region therebetween;
• (b) filling said build region with a polymerizable liquid, said polymerizable liquid comprising a mixture of:
• (i) a light polymerizable liquid first component, wherein the first component comprises a photocurable silicone resin, and (ii) a second solidifiable component that is different from the first component;
• (c) irradiating said build region with light through said optically transparent member to form a solid polymer scaffold from the first component and advancing said carrier away from said build surface to form a three-dimensional intermediate having the same shape as, or a shape to be imparted to, said three-dimensional object, with said intermediate containing said second solidifiable component carried in the scaffold in unsolidified or uncured form;
• and then
• (d) subsequent to the irradiating step, solidifying and/or curing the second solidifiable component to form from said three-dimensional intermediate said three-dimensional object.