the.com/jointer
The flat-earther of the workshop: it lies relentlessly until your wood finally agrees.
means A jointer is a woodworking machine (or hand plane) that flattens and squares the edges and faces of boards so they sit perfectly true for gluing or joining.
from From "joint" plus the agent suffix "-er" — literally "the thing that makes joints." "Joint" came into English through Old French "joint," from Latin "iunctus," the past participle of "iungere," "to join or yoke together" — the same family that gives us "junction," "conjugal," and even "yoga" (a distant Sanskrit cousin via the shared Indo-European root meaning "to bind"). The tool's name simply names its job: preparing edges so two pieces can be joined.
- core job
- Flattens one face and squares one edge, nothing more
- spinning danger
- Cutterhead hides thousands of cuts per minute
- common mistake
- People confuse it with a planer constantly
- name origin
- Prepares boards for tight glued joints
- old age
- Hand-plane jointers predate powered ones by centuries
powermatic 54a jointer — industrial machine tool with 54-inch bed capacity for flattening lumber edges and faces
woodhaven 4-square jointer jig — specialized fixture used in woodshops to flatten all four sides of rough lumber