David Roisum, Ph.D. (@davidroisum) 's Twitter Profile
David Roisum, Ph.D.

@davidroisum

Dr. Roisum is a well-known authority in the area of web handling and converting. 10 books, 400 YouTube articles, teach of 5,000 students, TAPPI Fellow

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linkhttps://www.roisum.com calendar_today04-04-2016 12:57:40

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In this show I describe the very best collections of web handling knowledge: books. But because there are so many to choose from, I will curate a few that you simply must have on your bookshelf. Web201.79b - youtube.com/watch?v=r_CADB…

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In this show I describe three ways to find things on the internet, as well as problems you might encounter with those searches. Web201.79c - youtube.com/watch?v=yV3LVO…

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In this show I list the major trade organizations that have notable web handling content. These organizations provide articles, books, conferences, directories, magazines, training and more. youtube.com/watch?v=m7mICY…

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Here I show you how to find builders of web machines and suppliers of web machine components. They may also be a good source for web handling expertise. youtube.com/watch?v=PiuqIY…

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In this very short show, I explain why one side of a slitter blade cut might be noticeably better than the other. youtube.com/watch?v=Sv2-td…

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In this very short episode, I explain some options for the best wrap angles for calenders including laminating calenders. youtube.com/watch?v=Ldvc_2…

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Today I explain why you may want dual drives on laminators, and how to do it safely. The when is for curl control. See the video for the how to. youtube.com/watch?v=fdptHN…

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Time constants are useful for many applications in web handling. In this series we will cover topics as varied as moisture and temperature changes in both the web and wound rolls, as well as wound roll shape, bagginess and more. youtube.com/watch?v=ffiVo0…

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The simplest and best-known time-dependent behavior is moisture changes in webs. This exact same behavior is also seen on temperature changes in webs, but because temperature is much less studied, this is the best place to begin. youtube.com/watch?v=PHf9P_…

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This week we are describing moisture AND temperature changes in wound rolls, again using the concept of time constants. youtube.com/watch?v=e1ROjB…

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This week, we make a head-to-head comparison of the time constants for moisture and temperature for both webs and rolls. Even though the physics are identical, the time scales are quite different. youtube.com/watch?v=VRICcx…

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This week we describe how long it takes for a wound roll to get out of shape during storage and handling. youtube.com/watch?v=WGcQxn…

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WRITERS BLOCK - I am super excited to begin a new series titled Motley where we cover a total mishmash of subjects without any connecting theme. But first, let me explain how we got to this place. youtube.com/watch?v=8leQ8J…

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I am super excited to continue our Motley series with this super fun episode on making messes as a problem solving technique. youtube.com/watch?v=PpWmPk…

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The proper units for displays and readouts is a fundamental control topic. Proper choices will make your operation run smoother from the operator to engineering levels. youtube.com/watch?v=coLU8H…

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We must all take bio breaks, snack breaks and lunch. Breaks also help refresh our minds and bodies so that we can return to the task with more vigor and less mistakes. However, it can also be a total manufacturing disaster if not managed properly. youtube.com/watch?v=DhJEfc…

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This first episode in a series on zero will discuss calibration of load cells including failure to replicate zero and shift of zero. youtube.com/watch?v=90jMRP…

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In this final episode on zero, we define zero in web handling for motor torque, how to find it, and what web units are appropriate. youtube.com/watch?v=JOomwT…