Rectangular duct offset: flat patterns
A rectangular duct steps across in plan to line up with the next run, its size the same all along, through a straight middle run between two mitres. It is built from four plates: the top and the bottom cut to the plan, and two sides bent at the mitres.
A rectangular duct stepping across in plan through a straight middle run, the same size all along; four plates.
Sizes you enter
- Width (W): Across the duct, seen from above, on the surface chosen under Sheet.
- Height (H): Across the duct, seen from the front, the same all along.
- Length (L): End to end, along the duct.
- Offset (X): How far the second end's centre line is across from the first's, seen from above.
- Straight, first end (E1): Straight run at the first end, on the side the duct steps towards, up to the first bend. 0 for none.
- Straight, second end (E2): Straight run at the second end, on the other side, from the second bend. 0 for none.
What you get
The exact flat pattern of the part, worked out for the sheet thickness measured on the inside, the mean or the outside, with numbered press lines, the part in 3D, its weight and cutting length, and a DXF for laser, plasma or waterjet cutting (STEP as well).