The only thing bigger than Titomic’s new 3D metal printer – allegedly the world’s largest – is the scale of this Melbourne-based startup’s ambitions.

“If we look at the metals industry, I like to joke that it started 5000 years ago. Nothing has really fundamentally changed in those 5000 years,” Titomic chief executive Jeff Lang said on Wednesday as the giant printer was unveiled at the company's Mount Waverley warehouse.

“We believe today you’re looking at ... where metal manufacturing can go in the future.”

Jeff Lang stands before his new 3D printer at the official unveiling on Wednesday. Credit:Jason South

The company's plans to print large titanium components – from golf clubs to ship hulls to titanium bike frames – have made it a sharemarket darling. It listed at 20¢ a share last September and shares traded at a high of $2.80 earlier this month.