As a researcher, sometimes you need glassware in very specific dimensions that is not available in commercial catalogs. For instance a few months ago I needed a

As a researcher, sometimes you need glassware in very specific dimensions that is not available in commercial catalogs. For instance a few months ago I needed a glass pipe of a given diameter and a given angle in order to fit a machine which normally does not use glass pipes. Such combination of diameter and bend angle was not available off-the-shelf, so a glassblower needed to make a custom piece for us.