Thank you, Scott and good afternoon everyone. Welcome to our first quarter 2017 earnings call and corporate update and thank you for joining us. I will comment on our first quarter and then hand off to Murray Williams, our CFO, who will be discussing our financial results for the quarter ended March 31, 2017. Once we conclude, we will open the call for questions. We have accomplished a great deal in the first quarter and that positioned Sigma Labs as unique and highly valuable solutions provider in 3D advanced manufacturing space. With version 2.0 of our PrintRite3D INSPECT quality assurance software, a new OEM Developer’s Kit increased customer wins, stronger synergistic alliances and possible M&A activities, which set the stage for future strong growth potential. The Sigma Labs of today is stronger, better positioned company with tremendous promise. Most notably, we recently entered into a nonbinding LOI with Morf3D to commence negotiations on a mutually acceptable M&A agreement with respect to proposed merger of Morf by Sigma Labs. It is anticipated that this transaction, if consummated, would help us achieve our goal of becoming a fully integrated business able to charge for material selection, design and manufacturing and in-process quality assurance. It has furthered the goal that the combined entity would emerge as a fully integrated additive manufacturing company poised to serve the aerospace and defense industry, which is rapidly transitioning to 3D metal additive manufacturing and which could provide the kind of cost savings required to meet the $56 billion increase slated for that defense industry 2017 budget. The closing of the transaction is subject to definitive documentation and closing conditions some of which are beyond the company’s control. Before I discuss the developments we achieved in our first quarter 2017 in more depth, I would like to take a few moments to discuss the full breadth of who Sigma Labs is our offerings, business model, market opportunities and growth strategies. Sigma Labs is a software company and have developed quality assurance software known as PrintRite3D, which we believe solved some of the major problems that have prevented large scale metal production using 3D printers, namely real-time computer-aided inspection. To frame our solutions in context, Sigma’s client, GE Aviation, for example, has stated that it plans to commit $3.5 billion by 2022 among other things build a metal 3D production facility for its LEAP engine and other engines to produce the applicable 3D printed parts. We have client relationships with Aerojet Rocketdyne for the United States Air Force booster propulsion program and Honeywell Aerospace for the DARPA Period III efforts as well that are focused on leveraging our software in the manufacturing and production of highly advanced parts for a variety of industrial and specialized needs. However, without companies like GE Aviation and our clients like Honeywell, Pratt & Whitney, Siemens and Solar Turbines among many others effectively being able to check each part for shape, density strength and consistency in real-time during the manufacturing process. We believe that such companies will not be able to adequately address the major problems currently preventing large scale metal 3D production. Thus when we announced last week, the commercial availability of our updated PrintRite3D INSPECT version 2.0 software, which pairs our sensor pack, multi-sensor and hardware with contour and analytic software modules for comprehensive management of additive manufacturing processes. We took another convincing step along the path to not only resolving this gating QA issue, it presents the first-to-market end-to-end 3D advanced component manufacturing solution capabilities with web, industrial, Internet of Things and Cloud-based integration, which include computer-aided design, engineering, manufacturing and inspection. We have finally arrived at the realization of our vision with the delivery of a true market in solutions innovation, ground-breaking advancements in process control and real-time quality. Our version 2.0 release is now both web and IIoT enabled and features statistical process control and visualization providing a real-time snapshot of the entire manufacturing process part by part multi-varied analysis and allows for machine floor to Cloud data communication with multiple machine system integration capability. Current methods for providing quality are cost prohibitive, because approximately 25% of parts produced by 3D printing need to be destroyed in the postproduction quality control process. Additional costs are incurred by using nontraditional X-Ray scanning technologies on these parts. We offer our clients the ability to use in-process centers to track each production layer and our software continuously analyzes the part, so that when it is finished, our software can certify production quality in accordance with the customer’s quality specifications. We believe our PrintRite3D software could reduce inspection cost by a factor of 10 in development time for new parts by 50% or more. By using PrintRite3D software, a high precision manufacturer would have the ability to offer its customers on an exclusive basis, product guarantees and assurances that its product was produced in compliance with stringent quality requirements. We have received initial orders from GE Aviation, Honeywell Aerospace, Aerojet Rocketdyne, Woodward and Siemens, Pratt & Whitney and Solar Turbines to name several. Our PrintRite3D web based software is being designed to reside in the cloud of the Industrial Internet of Things. We enable manufacturing engineers to assure the part quality layer by layer provide for manufacturing statistical process control and harvest aggregate and analyze big data from the manufacturing in process data we collect from our SENSORPAK as well as post process manufacturing data collected by our customers. Our specialized suite known as SENSORPAK is an IIoT enabled computing device, it contains the modular hardware and software necessary to connect cyber physical objects living on the manufacturing floor. It allows for bidirectional information flow between the manufacturing flow and the cloud. It stars a million flow of data reduction that finishes with our PrintRite3D software, which provides customers with product guarantees and assurance that the parts are produced in compliance with stringent quality standards. It can collect, analyze, aggregate, filter and then further communicate data from the manufacturing floor to the cloud and enable links to other areas of the IIoT. In addition to unveiling our commercially available PrintRite3D version 2.0 software, we also announced the release of our OEM Developer’s Kit for PrintRite3D Inspect quality assurance software version 2.0. We placed and alpha version with an OEM – European OEM partner for testing, evaluation and incorporation into its additive manufacturing 3D printers. The Developer’s Kit allows an OEM to seamlessly and quickly embed PrintRite3D technology directly into their OEM solution allowing for rapid entry of their products into the market space. Given this backdrop, I would like to address our developments during the first quarter in the context of both the market opportunity and our business model and share with you how we are achieving our mission and our vision to become the market leader in the 3D advanced manufacturing space. According to Wohlers report 2016, 3D printing and additive manufacturing state-of-the-industry annual worldwide progress report, revenues attributable to 3D manufacturing for metal products were $88 million in 2015, up 81% while Sigma Labs focuses on metal 3D printing and products and services sales totaled nearly $5.2 billion in 2015, Wohlers forecast AM products and services sales to grow to approximately $26.5 billion by 2021. As we stated in our quarterly report, the application of 3D printing to a high tolerance precision manufacturing metal parts has only recently emerged. 3D printing of metal parts today represents only a minor percentage of all 3D manufacturing. However, we believe the greatest future growth for 3D printing appears to be in metal parts given the interest and investment being made by Fortune 100 companies, Federal government laboratories and agencies as well as university based institutions. Emphasis from these high end manufacturers and technology leaders is strongly focused on quality and precision manufacturing for high tolerance parts. We believe the ongoing success of 3D printing for metal parts will be highly dependent upon the quality assurance procedure used such as our PrintRite3D’s methodology. Sigma Labs operates in three business verticals; Item 1, software sales to OEMs making 3D printers also known as our OEM partner program, Item 2, software sales to end users using their install base of 3D printers to make components, it’s also known as our early adopter program and Item 3, our contract AM service provider business, which makes 3D printing components for advance manufacturers in aerospace and defense, power generation, medical and transportation industries. We generate revenues through PrintRite3D hardware and sensor sales and computer aided inspection software licensing of our PrintRite3D technology to customers that seek to improve their manufacturing production processes and through ongoing annual software upgrades and maintenance fees. Additionally, we generate revenues from our contract manufacturing activities of metal AM. By running our contract AM service operation we are able to understand the current needs of our customers and where they are going with their next generation product development efforts. Contract AM further allows us a means for continuing and self funding of our IPQA enabled R&D and product development activities for PrintRite3D computer aided inspection software. We provide our AM contract manufacturing services to customers in the form of quality as a service starting with our PrintRite3D cloud based software as a service model customers who will contract with us for computer aided engineering, computer aided manufacturing and computer aided inspection services to generate and establish a digital quality record for AM built parts. Each digital quality record is cloud based and allows for archiving and storage of quality data access to our big data analytics software app for continuous quality monitoring and improvement and automatic industry benchmarking while maintaining firewalls between company specific data. In 2015, we launched two programs, an Early Adopter Program and an original equipment manufacturer or OEM partner program designed to broaden our market presence and speed adoption of PrintRite3D technology. The early adopter program was designed to attract end user customer who have an existing installed base of 3D printers and to offer them icentivized pricing in return for feedback on initial and beta releases of our PrintRite3D software apps. Our OEM partner program was specifically designed for AM machine manufacturers seeking to embed our PrintRite3D quality assurance software apps directly into their machines for customers purchasing a turnkey solution for their new AM machine purchases. We have evolved, innovated, refined and enhanced our software over recent years to meet the evolving industry needs and we have done well at that. However, we have realized that in order to fully capitalize on the enormous market opportunity, we envisioned forging an ecosystem of leading emerging highly complementary market players which together could become as a whole far greater than some of its parts driving the benefits of true synergy and to this young and fast growing market. We announced numerous significant strategic alliances as well as client and OEM partner additions during the quarter, which we envision will drive sustainable revenue over the coming quarters and years. In an effort to bring enhanced solutions for additive manufacturing to the aerospace and defense sector and capitalize on growth and demand for 3D printed metal components within the A&D industry. We entered into a strategic alliance with Morf3D, a California based company that specializes an additive engineering and manufacturing with metals providing high level consulting and manufacturing services including conceptualization, optimization metallurgical examination, certification and data analysis and technology adoption road mapping. By leveraging our PrintRite3D quality assurance software, we believe that Morf3D will be able to provide a means for its customers to increase AM production rates while ensuring consistent part quality. Thereby better meeting the high quality demand of its aerospace customers. We also plan to work together with Morf3D to manufacture certain 3D printed parts. We believe that by working together with Morf we will be in a position to design, manufacture and assure the quality of AM components across a number of important aerospace applications, which could lead to the generation of a meaningful amount of additional revenue for our company. In addition in March, we completed funding alone in the principal amount of $500,000 to Morf3D pursuant to a secured convertible promissory note dated March 27, 2017. The purpose of the loan is to provide working capital to Morf3D to among other things lease an EOS M400 system for Morf3D to expand production for contracts related to AM of high precision aerospace and defense components in furtherance of our strategic alliance and in contemplation of a possible merger with Morf. Also in March, we announced signing a commercial alliance with Jaguar Precision Machine LLC to expand its suite of integrated advanced manufacturing services recently strengthened by the commercial alliance with Morf3D of El Segundo, California. The addition of Jaguar allows Sigma Labs to provide end-to-end 3D advanced component manufacturing capabilities, including computer-aided design, engineering, manufacturing and inspection. Jaguar is a precision prototype manufacturing facility located in Albuquerque, New Mexico. We will also work together to manufacture 3D printed parts requiring exacting precision to demanding specifications, which could lead to contracts in 2017. On May 1, 2017 we completed funding a secured loan in the principal amount of $250,000 to Jaguar to provide working capital to Jaguar to, among other things, become AS9100 certified for contracts related to AM of high precision aerospace and defense components in furtherance of our strategic alliance. Sigma will receive from Jaguar priority for use of certain machines and services of Jaguar. On the client side, we announced the contract from Solar Turbines Incorporated, a subsidiary of Caterpillar Inc. New York Stock Exchange, CAT, is their symbol. Solar Turbines will implement Sigma Labs’ In-Process Quality Assurance technology for the production of gas turbine components using metal additive manufacturing. The division makes midsized industrial turbines for use in electric power generation, gas compression and pumping systems. Sigma Labs will initially install its PrintRite3D software on a 3D Systems’ ProX300 machine, with the potential for multiple system orders as the company ramps up to full serial production. We also announced a contract from Aerojet Rocketdyne, a subsidiary of Aerojet Rocketdyne Holdings, New York Stock Exchange symbol, AJRD, as a follow-on to last year’s award tied to a U.S. Air Force propulsion initiative. Sigma Labs technology is being evaluated by Aerojet Rocketdyne for its contract with the Air Force for liquid fueled rocket engine applications, part of a plan to transition away from the Russian made, RD-180 engines currently used on the Atlas 5 launch vehicle. We also announced the signing of a commercial agreement with Pratt & Whitney, a unit of United Technologies, for our PrintRite3D software along with participation by Pratt & Whitney in our Early Adopter program, along with Solar Turbines who joined the program in April 2017. We added two additional OEMs into the OEM program. We entered into a long-term nonexclusive multiyear commercial OEM agreement with Additive Industries of The Netherlands, embedding and reselling our PrintRite3D software within its AM equipment. We also announced that we entered into a long-term nonexclusive multi-year commercial OEM agreement with a leading European provider of cutting-edge products for additive manufacturing. This undisclosed OEM will embed and resell Sigma’s PrintRite3D software within its AM equipments. On February 21, 2017, we closed an underwritten public offering of 1,410,000 units, with each unit consisting of one share of our common stock and one warrant to purchase one share of common stock. The underwriter exercised the over-allotment option covering additional warrants to purchase up to 211,500 additional shares of common stock. Gross proceeds to us from the offering, including the exercise of the over-allotment option were approximately $5.8 million before deducting underwriting discounts and commissions and other operating expenses payable by us. The addition of two new end-users joining our Early Adopter program, Pratt & Whitney and Solar Turbines, our alliance partnership agreements with Morf and Jaguar Precision Machine and signing a non-binding LOI with Morf3D, our goal is furthered with respect to establishing a 3D advanced manufacturing ecosystem capable of delivering high precision components to advanced manufacturers worldwide. The developments and accomplishments we have achieved in the first quarter further our goals and strengthen our foundation as a growing market force in the 3D AM space. Our vision was to develop a comprehensive revolutionary software solution for their burgeoning industry that overcame the inherent limitations and potential dramatic losses associated with end of process quality assurance testing. Our expertise in this realm has evolved over the years in the trenches engineering, consulting and our practical insights have delivered our market changing solution. We believe that our software, which is positioned inside the 3D metal printer, solves these critical problems by assuring each part is being made to the specifications of the computer file as it is being made. We enabled 3D prototyping to become 3D manufacturing and we do it within an ecosystem that we believe now includes market-leading end-to-end 3D advanced component manufacturing capabilities with web, IoT and Cloud-based integration, including computer-aided design, engineering, manufacturing and inspection. Our first quarter marks the continuation of our efforts to integrate the entire lifecycle of advanced component manufacturing from prototyping to finished product representing groundbreaking advancements in process control and real-time quality assurance. Instead of performing quality assurance post-process or post-production, our PrintRite3D software could fundamentally redefine conventional quality assurance by embedding quality assurance and process control into the manufacturing process in real-time. We are also pleased to report the addition of new members of the Board of Directors of Sigma Labs during the quarter. Sigma Labs appointed Sam Bell, Frank Garofalo and John Rice to serve as independent directors and appointed John Rice as Chairman in April 2017. We are especially pleased to welcome our new directors who will serve to steward Sigma Labs in its future growth and market leadership. With that, I now turn the call over to Murray to discuss our financial results for the quarter ended March 31, 2017 and then we will open the call for questions. Murray?
