A converting machine is used to convert sheet material into packaging templates for assembly into boxes or other packaging. The converting machine includes a converting assembly that performs a transverse conversion function, a longitudinal conversion function, and an angled conversion function on the sheet material to create the packaging templates. The converting machine includes a tool head with a converting instrument. The orientation of the converting instrument is adjustable to enable performance of the angled conversion function and at least one of the longitudinal conversion function and the transverse conversion function.

A converting machine is used to convert sheet material into packaging templates for assembly into boxes or other packaging. The converting machine includes a converting assembly that performs a transverse conversion function, a longitudinal conversion function, and an angled conversion function on the sheet material to create the packaging templates. The converting machine includes a tool head with a converting instrument. The orientation of the converting instrument is adjustable to enable performance of the angled conversion function and at least one of the longitudinal conversion function and the transverse conversion function.

A converting machine is used to convert sheet material into packaging templates for assembly into boxes or other packaging. The converting machine includes a converting assembly that performs a transverse conversion function, a longitudinal conversion function, and an angled conversion function on the sheet material to create the packaging templates. The converting machine includes a tool head with a converting instrument. The orientation of the converting instrument is adjustable to enable performance of the angled conversion function and at least one of the longitudinal conversion function and the transverse conversion function.

Polygonal elastomeric barrier sheets have tapered edges on at least two adjacent sides. At least one of the tapered edges is made by cutting the elastomeric barrier sheet along a cut line at an angle of at most 15 from the plane of the sheet. The elastomeric barrier sheet is supported during the cutting step to prevent distortion due to pressure of the cutting blade. The elastomeric barrier sheet can be supported from above, below or from both above and below, and can be supported on each side of the cut line. The polygonal barrier sheets so produced are useful in building and construction to seal gaps between structural elements such as expansion or control joints in a building or around functional elements such as a window or door inserted into a wall.