Rectangle to cone, level branch: duct pattern
A rectangular duct with rounded corners runs level into a cone, on its centre line or off it, as on a rectangular take-off from a hopper or a tapered main. The duct is developed flat, its end cut to the cone's slope, its corners at their true length.
A rectangular duct running level into a cone, on its centre line or off it; the pattern is the duct.
Sizes you enter
- Base diameter (D): Across the cone's base; the duct is cut to fit the cone as given.
- Top diameter (d): Across the cone's top, as given.
- Height (H): From the base to the top.
- Duct width (W): Across the duct, seen from above, on the surface chosen under Sheet.
- Duct height (Hr): The duct from its bottom to its top, on the surface chosen under Sheet.
- Corner radius (r): The duct's corners, seen end on, on the surface chosen under Sheet (0: sharp).
- Duct height up the cone (Hb): From the cone's base to the duct's centre line.
- Duct length (L): From the cone's centre line to the duct's open end.
- Offset (Z): Seen from above: the duct's centre line to the side of the cone's (0: on it).
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).