Stencil Tables are used to turn Blank Patterns into patterns for specific tool parts in the Tinkers' Construct mod. To make a pattern or cast, simply place the blank pattern in the slot in the table, and cycle through the pattern options with the 'Next' and 'Previous' buttons.
The Stencil Table is one of the four basic tables for crafting in the Tinkers' Construct mod along with the Pattern Chest, Part Builder, and Tool Station.
Crafting requires one Blank Pattern and one Wooden Planks.