Rapid prototyping a digital multimeter–a case study

Redfish Instruments develops electronic devices that function in tandem with the Apple iPhone, iPad, and iPod-touch. Management claims that the iDVM device is the world’s first iPhone, iPad, and iPod-touch enabled digital multimeter that wirelessly transmits voltage, current, and resistance measurements for visualization, data sharing, and data logging. Control of the iDVM is handled entirely from within a free, downloadable application that resides on the mobile device. (The multimeter iPhone application can be downloaded for free from the Apple App Store.)

While Redfish engineers created an initial design for the device, they needed a vendor who could provide them with functional prototypes for review and testing. Patrick O’Hara, Redfish began by using the Quickparts online instant quoting engine, QuickQuote®, to quote and buy the order for the initial ABS-like, black SLA prototypes for the top and bottom of the design case.

After performing fit and form testing, Redfish, along with help from Quickparts engineers, implemented design revisions and moved on to a second order of pre-production Cast Urethane parts that allowed them to further test design, color, function, and finish texture.

When the time came to produce the final production parts for the case, the engineers again turned to Quickparts for the Low Volume Injection Molded parts they needed. Today, production quantity components for the multimeter are molded out of UL94V0 black ABS off of aluminum injection molds with Quickparts. “From the personal follow up on our prototype projects, all the way to the Design for Manufacturability analysis we received with our molded parts, Quickparts continued to be the easy and logical choice to handle each phase of our production,” said O’Hara.

 

 

 

Redfish Instruments
www.redfishinstruments.com

Quickparts
www.quickparts.com
www.3DSystems.com