Impulse Space machines 700-pound copper forgings down to 25-pound liners
Tom Mueller · Tom Mueller: SpaceX's #1 Employee Built the Merlin Engine. Now He's Building Impulse Space · Sourcery with Molly O'Shea · Jun 4, 2026 · at 21:47
Tom Mueller, founder and CEO of Impulse Space, details the machining process and material reduction required to produce copper combustion chamber liners.
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“We start with these forging that weigh about 700 pounds and the final slotted product weighs about 25 pounds.”
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