The Q4 2021 Issue of UV+EB Technology introduced us to a group of companies (The UV Band) that worked cooperatively to design, prove and implement a UV-based solution for the base coat of a guitar. The link to the original magazine issue can be found at: https://bluetoad.com/publication/?i=730064. This column provides a VH1-inspired update, “Where Are They Now.” Customer … [Read more...] about Where Are They Now?
Measurement
Making the Working Curve Work for You
By Jason P. Killgore, NIST Photopolymer Additive Manufacturing Project The working curve is a foundational measurement in Vat Photopolymerization (VP) additive manufacturing methods, such as stereolithography (SLA), digital light processing (DLP) and masked SLA. The working curve establishes a relationship between the depth (or thickness) of a photo-cured resin and the … [Read more...] about Making the Working Curve Work for You
Radiometry: Variations in Consistency Across 3D-Printer Models
By Paul Snowwhite, Katie Snowwhite and Hunter Peczynski, 7D Innovators, LLC Editor’s Introduction: The authors created an experiment to better understand why 3D printers created by various manufacturers perform differently even when using the same print settings or why a print fail occurs after multiple successful prints. Variables initially considered included material, cure … [Read more...] about Radiometry: Variations in Consistency Across 3D-Printer Models
Is It Done Yet? Comparison of Methods to Monitor Degree of UV Cure
By Noah Menard, Veritas Testing and Consulting; Kevin Menard, Mary Kay Corporation; and Benjamin Menard, Hitachi High-Tech Science One of the challenges with photocuring systems is understanding the development of the degree of cure and the associated physical properties. Not only do the normally measured properties (glass transitions [Tg], moduli, hardness and strength) vary … [Read more...] about Is It Done Yet? Comparison of Methods to Monitor Degree of UV Cure
Wise Men (and Women) Say…
Relax, this is not a column about Elvis. Instead, even though I am generating this column in mid-September, I’m going to channel the holiday season. By the time you read this, decorations have been in stores for a month and Hallmark movies featuring snow and festive gatherings will be on television 24/7. Growing up, I learned about the “three wise men” in church. As I got … [Read more...] about Wise Men (and Women) Say…