Calculate number of bends, bend angle, step chord dimensions, and flat pattern development for cylinders and cone frustums (hoppers). K-factor 0.5 — neutral axis at mid-thickness.
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Units
Outside Diameter in
Material Thickness in
Part Height in
Step Multiplier × thickness
Chord length per step = multiplier × t. Default 4×.
Height Input Type
Small Dia. (top) in
Large Dia. (bottom) in
Vertical Height in
Material Thickness in
Step Multiplier × t, small side
Small side drives interval. Large side is proportional.