Rapid Prototyping David Szeto, Fabian Rodriguez, Kevin Chang, Matt Magallanes May 18, 2010.

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Presentation transcript:

Rapid Prototyping David Szeto, Fabian Rodriguez, Kevin Chang, Matt Magallanes May 18, 2010

Table of Contents What is Rapid Prototyping? Technology of Rapid Prototyping.

What is Rapid Prototyping? Also known as “Additive Manufacturing”. Virtual designs created with help of CAD. Thin cross-sections are made with additive technology. Powder, liquid, and sheet materials are used. Layer upon layer is built until part is created.

Stereolithography (SLA) At each layer, a laser traces pattern of cross- section in resin. Resin is developed with UV light. Elevator descends by one layer thickness to make next layer. Process repeated to create entire part.

Stereolithography (SLA) Each resin refill costs $6,000. Sony SLAs needs to be constantly serviced. Warranty not affordable. Durable. “Sony builds things to withstand a nuclear explosion,” Ed Tackett.

Selective Laser Sintering (SLS) Similar to SLA, but powder is used instead of resin. SLS can use a wide range of build materials. Sintered under controlled environment. Melted powder that drips off part is collected and reused.

Laser Cutting Thermal process in cutting. Can be used to engrave. Wide range of materials can be cut, from wood to Kevlar. DO NOT CUT FLAMMABLE MATERIAL.

Laser Scanning By measuring flight time of laser hitting an object, a detailed model of object can be compiled. Backscattering from wall can be a problem. Need to tell computer how far away object is. Can directly input model into SolidWorks.