ROLLING OFFSET

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ROLLING OFFSET (3D)
RISEROLLTRUE
Rise
in
Roll
in
Run
in
Using unverified sample bender data. These specs are approximate starting points. Verify deduct, take-up, and radius against your actual bender shoe before trusting these marks.
Mark 1
24
in
Mark 2
50
in
Angle
22.6°
Status
BUILDABLE
True Offset
10 in
Roll ∠
53.1°
Shrink
3/4 in

Important: Rotate the conduit by the roll angle (53.1°) before making the second bend. Use a level or protractor for accuracy.

Formula - assumptions
Rolling Offset (3D Offset)
True offset = √(rise² + roll²) = √(6.000² + 8.000²) = 10.000 in
Bend angle = atan(true_offset / run) = 22.6°
Roll angle = atan(roll / rise) = 53.1° (rotate conduit this amount)
Distance between bends = 26.000 in
Shrink ≈ 0.769 in