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Miter joint Workbench

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Miter joint marked out — the state the viewer opens from: layout lines scribed, no waste removed yet.
Construction
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Parts

Drag to rotate. Right-drag to move. Middle-drag to zoom; wheel zoom needs Rotate on. Double-click to refit.

Tap Rotate, then drag to rotate. Two fingers move or zoom. Double-tap to refit. Turn Rotate off to scroll from the stage.

Parameter controls need the 3D renderer; this device shows the drawn defaults.

Geometry
90° corner, each end cut at 45°
16 mm5/8 in
90 mm3 9/16 in
both ends cut to the same setting
Wood tone

Readouts

Glue area
2036 mm²3.16 in²
Parts
2
Cuts
2
Units

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Cut list, finished sizes at the current settings
PartWidthThicknessCutsDeepest cut
Board A90 mm3 9/16 in16 mm5/8 in116 mm5/8 in
Board B90 mm3 9/16 in16 mm5/8 in116 mm5/8 in

Board length along the grain is a display convention in the model and is not listed.

About this joint

In a miter joint (a mitre, in British usage) both ends are cut at half the corner angle, so the two faces meet on the bisector and no end grain reaches the outside. The contact is broad but partly end grain, and the corner has no shape that stops the two halves sliding apart.

Read the Miter joint guide