(CNN) Cody Wilson, the creator of the world's first fully printed 3D gun, appeared in a Texas court overnight to face a charge of child sexual assault.

Wilson, who was in Taiwan last week, was transferred to Houston by US marshals on a warrant over the sex assault of a minor. According to jail records, Wilson's bond was set at $150,000.

In court, Wilson said he plans to hire an attorney.

If convicted of child sexual assault, Cody Wilson could face up to 20 years in prison.

A warrant for Wilson's arrest was issued last week after allegations that Wilson, 30, had sex with a 16-year-old girl he met on an adult dating site, police said.

Wilson allegedly met the girl at a coffee shop on August 15, brought her to a hotel and paid her $500 for sex, Austin police Cmdr. Troy Officer said

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