Rectangular duct reducer, offset: flat patterns
A rectangular duct narrows in plan and changes height at the same time, its top and its bottom each sloping between straight runs, the bottom stepping down or up. It is built from four plates: the top and the bottom bent where they slope, and two flat sides.
A rectangular duct narrowing in plan and changing height, its top and bottom each sloping between straights; four plates.
Sizes you enter
- Wide end (W1): Across the first end, seen from above, on the surface chosen under Sheet.
- Narrow end (W2): Across the second end, seen from above.
- Length (L): End to end, along the duct.
- Height, first end (H1): Across the first end, seen from the front.
- Height, second end (H2): Across the second end, seen from the front.
- Bottom drop (Y): How far the second end's bottom is below the first's, seen from the front. Negative: above.
- Top straight, first end (T1): The top runs straight this far from the first end before it slopes.
- Top straight, second end (T2): The top runs straight this far to the second end after its slope.
- Bottom straight, first end (B1): The bottom runs straight this far from the first end before it slopes.
- Bottom straight, second end (B2): The bottom runs straight this far to the second end after its slope.
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).