P17551: Sandia Instrumented 3D Printer
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Preliminary Detailed Design

Table of Contents

Team Vision for Preliminary Detailed Design Phase

Summarize:

Prototyping Analysis

Initial prototyping will be done using a separate micro-controller as well as a variety of sensors with the intent of using some, if not all, of them in the final design of this senior design project. As temperature is the most important parameter to be measured, the prototyping found in this design review encompasses three main aspects of the design that need to be measured, the heat bed, the build itself, and the ambient temperature inside and outside of the printer.

Heat Bed

Heat Bed of BCN3D Sigma

Heat Bed of BCN3D Sigma

Part Build

MLX90621

MLX90621

MLX90621 Array Field

MLX90621 Array Field

MLX90614

MLX90614

IR Sensor Field of View

IR Sensor Field of View

Top of BCN3D Sigma

Top of BCN3D Sigma

Side of BCN3D Sigma (Representative of both left and right)

Side of BCN3D Sigma (Representative of both left and right)

Ambient Temperature

K-Type Thermocouple

K-Type Thermocouple

Points for Further Analysis

Feasibility: Prototyping, Analysis, Simulation

DAQ Feasibility

DAQ Feasibility

Thermal Camera Feasibility

Thermal Camera Feasibility

Schematics, Simulations

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Budgeting

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Test Plans

Purpose

Outline the tests that will be done to our printed parts to quantify how print properties affect part quality.

Geometric Tolerance Testing

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NIST Standard AM Test Artifact
This standard outlines the details, characteristics, and features of a standardized test artifact that are used to demonstrate the performance of an AM system. This part may also "...be used as an acceptance piece for a contract between a buyer and seller of an AM system." [1] The following table [2] demonstrates the artifact parameters and what machine characteristics it is testing for.
Artifact Parameters

Artifact Parameters

Tensile Testing

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Impact Toughness Testing

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Risk Assessment

Risk Assessment

Risk Assessment

Plans for next phase

Gantt Chart

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Citations

[1] NIST Additive Manufacturing Test Artifact: https://www.nist.gov/el/intelligent-systems-division-73500/production-systems-group/nist-additive-manufacturing-test

[2] Shawn Moylan, John Slotwinski, April Cooke, Kevin Jurrens, and M. Alkan Donmez, PROPOSAL FOR A STANDARDIZED TEST ARTIFACT FOR ADDITIVE MANUFACTURING MACHINES AND PROCESSES (2013)

[3] Melexis Contact-less Infrared Sensor MLX90621: http://www.digikey.com/product-detail/en/melexis-technologies-nv/MLX90621ESF-BAB-000-TU/MLX90621ESF-BAB-000-TU-ND/4968086

[4] Melexis Contact-less Infrared Sensor MLX90614: https://cdn-shop.adafruit.com/datasheets/MLX90614.pdf

[5] Thermocouple Type-K Glass Braid Insulated - K: https://www.adafruit.com/products/270

[6] Thermocouple Amplifier MAX31855: https://www.adafruit.com/products/269


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