MECE E1001X Lecture 2: LipsonDMwk2

4 Pages
Unlock Document

Columbia University
Mechanical Engineering
Hod Lipson

Digital Manufacturing A process that creates a physical object directly from a software blueprint Example: 3d printing, laser cutting, CNC milling, Waterjet cutting, Stereolithography, CNC lathe First Open-source systems [email protected](2005) SFF 2006 RepRap(2005) Makerbot(2009) The 10 disruptions: Disruption 1: Complexity is free Interpretation: Traditional manufacturing: more complicated shape, more cost 3D printing: Costs as the same as simplicity. Fabricating an ornate or complex shape does not require more time, skill or cost than printing a simple block. Also, free complexity will disrupt traditional pricing models and change the calculation of cost of manufacturing. Disruption 2: Variety is free Interpretation: Traditional manufacturing are less versatile and can make limited shapes. 3D printing can make many shapes. Like a human artisan, a 3D printer can fabricate a different shape each time. 3D printing removes the over- head costs associated with re-training human machinists or re-tooling factory machines. A single 3D printer needs only a different digital blueprint and a fresh batch of raw material. Disruption 3: No assembly required Interpretation: 3D printing can form interlocked parts. Mass manufacturing is built on the backbone of the assembly line. In modern factories, machines make identical objects that are later assembled by robots or human workers. The more parts a product contains, the longer it takes to assemble and the more expensive it becomes to make. By making objects in layers, a 3D printer could print a door and attached interlocking hinges at the same time, no assembly required. Less assembly will shorten supply chains, saving money on labor and transportation; shorter supply chains will be less polluting. Disruption 4: Zero lead time Interpretation: 3D printer can print objects on demand. Traditional manufacturing needs to stockpile physical inventory. New types of business services become possible as 3D printers enable a business to make specialty or custom objects on demand in response to customer orders. Zero-lead-time manufacturing could minimize the cost of long-distance shipping if printed goods are made when they are needed and near where they are needed. Disruption 5: Unlimited design space Interpretation: Traditional manufacturing technologies and human artisans can make only a finite repertoire of shapes, which is limited by the tools available to us. For example, a traditional wood lathe can make only round objects. A mill can make only parts that can be accessed with a milling tool. A molding machine can make only shapes that can be poured into and then extracted from a mold. A 3D printer removes these barriers, opening up vast new design spaces. A printer can fabricate shapes that until now have been possible only in nature. Disruption 6: Zero skill manufacturing Interpretation: Traditional artisans train as apprentices for y
More Less

Related notes for MECE E1001X

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.