Unit: Processes of Manufacturing

Nameplate Mass Production

Useful Vocab

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CAM

Computer Aided Manufacturing - The use of software and computer controlled machinery to automate a manufacturing process. In Eningeering Technology II, V-Carve CAM software is used to program the CNC router.

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CNC

Computer Numerical Control - A method for automating control of machine tools through the use of software embedded in a microcomputer attached to the tool. It is commonly used in manufacturing for machining metal and plastic parts.

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CAD

Computer Aided Design - The use of computer-based software to aid in design processes. Typically CAM software is used by engineers to virtually design parts with 2D sketches and 3D models.

Project Overview

00

Precursors V-Carve

To preface this project, our class began with tutorials on a CAM software called V-Carve. This allow us to program toolpaths for the CNC router allowing it to make the necessary cuts to create the nameplates and perform two sided machining operations.

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01

Prototyping Initial Designs

To diversify the intial designs, the class was split into groups to create variety of designs after which the class compared the designs selected the final design heavily valuing the aesthetics and cycle time of each.

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02

Group 1 Testing and Revisions

After the final design was selected, tests were run of the design individually and revisions were made in order to increase the quality and efficiency. Some of the revisions made included adding a chamfers, adding a circle around the ATC logo, and adjusting speed and feed rates.

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03

Group 2,3, & 4 Packaging Prototypes

While Group 1 was revising the nameplate design, the other teams created initial designs for the packaging. These were done by creating designs in Adobe Illustrator and using a CNC laser cuter to cut out the designs quickly and precisely. One of these packaging designs were selected primarily based off of aesthetics.

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04

Group 4 Packaging Revisions

With Group 4's design being selected, individual boxes were created and tested. Multiple iterations were created in order to perfect the final design. Those included locating the tabs to the inside of the box, adding a logo and copy on the outside of the design, and changing the material to reduce costs and lower weight.

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05

Final Preperations Fixturing & Surfacing

In order to machine more than 1 nameplate at a time, a fixtured needed to be made to hold all of the stock during the CNC operations. In this design, we press fit the stock into a fixture designed with tight tolerances to hold it in place during the run.

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Final Products


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Analysis

Engineering Experience

Engineering Design Process

After my group's design was selected, we were assigned the responsibility the products fabrication. Throughtout the production, I had to refer to the engineering design process in order to effectively design and mass produce the nameplates with my group.


Problem Solving

Over the cource of this project, my group and I had to work past a number of problems including how to minimize the amount of post-production operations, how to properly secure the stock during the CNC operations, and how to


Interpersonal Communication

For this project, I had to both work with a team to design and create a nameplate concept, and our team had to work with the other teams and was responsible for a certain part of the process that put the nameplate on the desks of ATC teachers.

Machining Experience

CNC Router Experience

Throughout the cource of this project, I familarized myself with a 3-Axis Axiom CNC Router. I learned how to prepare files through CAM software and properly adjust the speed and feed rates to maximize efficiency without damaging the tool bits or the product.


Two-Sided Machining Operations

This project required the use of the two sided machining feature where the product would be machined on one side, and flipped in an orientation that would allow CNC operations on the other side while maintaining tight tolerances.


Creating Fixtures

To maintain identicle orientations during the machining on each side, a jig was required to hold the stock in place and maintain its proper postition in both the X, Y, and Z dimensions. While in theory, the jig should have done this quite nicely as the stock was press fit in, we did have some issues which can be found on the right.

Skills

SOLIDWORKS CAD
V-Carve CAM
Two-Sided Machining
Managing Speed and Feed Rates
Designing Fixtures and Jigs

If I were tasked with this project again...

The biggest thing I could change would be the material of the fixture. For this project, we were given wood which had been slightly warped. If done again, a thorough inspection of material could help us to avoid the uneven machining across each batch which led to the loss of multiple nameplates in our first run.

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