SheetMorph

Intersections

One part set onto the side of another, with the hole it needs. Each of these opens in the browser with default sizes that already give a verified flat pattern: change them to yours, check the drawing, add seam and flange allowances, and export.

Tee or Lateral

A branch set onto a run: equal or reducing tees and angled laterals, with the saddle cut and the hole in the run.

• Equal tee
• Reducing tee
• Lateral

Cross

Two branches set onto opposite sides of a run: equal, reducing or unequal, with both saddle cuts and both holes in the run.

• Equal cross
• Reducing cross
• Unequal branches

Manifold

A round run with a row of equal branches at an even pitch: the run unrolled with every hole marked, and the branches with their saddles.

• Branches on one side
• Branches on alternate sides

Cone on Pipe

A cone set onto a round pipe, square as a boot or hopper outlet, or at an angle as a conical lateral, with the hole in the pipe.

• Square to the pipe
• At an angle (lateral)

Pipe on Cone

A round branch set square onto a conical shell, such as a nozzle on a hopper, with the hole in the cone.

Cone on Cone

A cone set square onto a conical shell, such as a reducing branch on a hopper, with the hole in the main cone.

Rectangular Tee

A rectangular branch set square onto a rectangular duct, straight or with a shoe, with the hole marked on the duct.

• Straight branch
• Branch with a shoe

Rectangle on Round

A rectangular branch set square onto a round run, on its centre or offset: the run with its hole, and the branch folded at its corners.

• On the centre
• Offset