Donovan Engineering – Heavy Metal Thunder

We recently had the pleasure of visiting Donovan Engineering to watch them machine an engine block from billet. They are in the process of perfecting the machining process.

They start with a 500 pound billet.

Donovan uses Mastercam to design and program the blocks.
Efficient roughing is crucial to removing the unwanted 350+lbs of metal from the block.
Efficient material removal can mean monster chips.
Donovan uses OptiRough toolpaths on the block: 3” cutter and a .150” engagement.
Finished and sleeved, the block is ready to go.
This Mastercam-sponsored top fuel dragster got the first Donovan engine block machined from a billet.

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