We introduce a single photoresin for VP that selectively forms either a thermoplastic or a thermoset depending on the illumination wavelength (Fig. ). The main component of this resin is isobornyl acrylate (IBOA, ~60 wt%), which forms a rigid thermoplastic poly(IBOA) upon photopolymerization. Poly(IBOA) is readily dissolved in many organic solvents, but is minimally soluble in its precursor monomer under ambient conditions, ensuring that dissolution does not occur during printing . The second primary component of the resin is 3,4epoxycyclohexylmethyl-3,4-epoxycyclohexane carboxylate (EPOX, ~40 wt%), a difunctional epoxide that can form a solvent-resistant thermoset via cationic ring-opening polymerization. Concurrent printing of both dissolvable poly(IBOA) support features and non-dissolvable dualnetwork solids is achieved by incorporating two polymerization initiators that respond to different wavelengths of light. A free radical photoinitiator with absorption in the UV and low-wavelength portion of the visible spectrum allows printing of just poly(IBOA) under visible light (405 nm) irradiation. By also including a photoacid generator that responds only to UV light (365 nm), UV irradiation simultaneously polymerizes both IBOA and EPOX monomers. Additionally, including a small amount (~1 wt%) of the difunctional acrylate-and epoxide-containing crosslinker 3,4epoxycyclohexylmethyl acrylate (ECHA), crosslinks between the two polymer networks are formed during UV exposure, increasing solvent resistance of the final printed construct.