Alibre has raised the stakes in its challenge to engineers to find designs they can't create in Alibre Design 6.0ófrom $500 to $1,000. The challenge first went out in March as part of the company's marketing program. Alibre wanted to get across the idea that its CAD software, priced at $695, can do most anything higher-priced software can do. Despite entries from several engineers, only Design Consultant Ron Routledge won the challenge. And he bought the software anyway.