Why is Manufacturing Difficult?

Complexities buried in manufacturing, recipe diagrams for engineers, stamping press choreography, and more.

Topics worth your time: what consumer hardware can teach the next generation of robotics startups about manufacturing, an insider’s look at progressive-die stamping, engineering recipe diagrams, and more.


Interesting Presentation: Why is Manufacturing Difficult?

More and more kinds of work can now be remade at almost no cost. Not to say that the work is good or particularly useful, only that it has become cheap to produce. The contemporary word for this is ‘slop’, describing the kind of cheap excess that appears when the barrier to entry is near zero. It’s particularly top of mind as more artificial content has overwhelmed social feeds, to the point that LinkedIn now has a ‘Seems Like AI Slop’ button.

Perhaps what’s still beautiful about working with real systems (especially those that extend beyond demos or prototypes) is that the process of building is still just as difficult. And by virtue of the work itself, there’s a natural barrier to ‘slop’.

Dr. Anna Thornton’s 2016 MIT presentation on Why is Manufacturing Difficult? is a great synthesis on the complexities of manufacturing that boils down to this: manufacturing is complex because it is an exactingly detailed process fraught with decisions that cast a long shadow once set.

The story of product development is usually told from the engineer’s POV, but manufacturing has its own lifecycle that the author groups into three phases: pre-manufacturing, manufacturing ramp, and ongoing production. Multiple parallel loops and qualification steps that run concurrently to the regular development lifecycle, where the object of the work is to translate a design into a repeatable process.

There’s lots more nuggets of knowledge buried in the presentation; see pages 20–21 for standard critical path/production timelines, and pages 24–27 for cost and supply-chain planning.

Though most of the framing is on consumer hardware, many robotics startups would benefit from the methodology it lays out for factory qualification, sourcing, and production planning. The supply chain, after all, doesn’t care whether the finished product walks or makes toast.


More From Around The Web


Interesting Video: Progressive Die Stamping

A visual walkthrough of sheet metal stamping, including progressive die stamping and all the fixturing/workstations that keep the line moving.


Manufacturing & Startup News

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