Bend Aid

NEW VERSION

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Bend Aid 4.0

Accurate Conduit Bending

Bend Aid 4.0

Accurate Conduit Bending

I built an app that solves conduit bends with the real math instead of the cosecant tricks — Bend Aid

Here's the problem: an offset is not a right triangle. A right triangle has three straight lines — an offset has two bends and a straight section. The cosecant method (multiplier × offset height) solves the hypotenuse of a triangle and calls it the distance between bend centers, but the bend is a curve, not a straight line. That's why gain happens in every bend, and why a big bend radius or a big angle means you end up fixing bends. It's not your fault — we were all taught tricks instead of the correct math, because the correct math is too complicated to do by hand.
Bend Aid does the correct math. No cosecant, no charts, no correction factors. You measure where the conduit has to fit, enter your dimensions, and it gives you everything you need to lay out the stick:
Conduit Length — total material needed
Start Bend — first mark from the end of the conduit
Travel — arc length of each bend
Start To Start — distance from one bend mark to the next
Bend Angle — it finds the smallest whole-degree angle that fits your run
Tail — from the finish of the second bend to the entered length
It solves the whole offset, start of the first bend to finish of the second bend. Because it solves the centerline, it works with any type or size of conduit.

What's in it:

Right Triangles — enter any two of altitude, length, hypotenuse, or angle
Offsets — single, rack, concentric, rolling, measured, plus 3-point and 4-point saddles
Kicks — single, rack, concentric, and to-horizontal / to-vertical variants
Nineties — single, rack, concentric, back-to-back, and back-to-back rack/concentric
Find Bend Radius and a Chart Bender for figuring out what your bender will actually do
Segments — break any bend's travel into equal-degree shots for segment bending
Number formats: decimal, 1/16", 1/32", or millimeters — answers convert instantly when you switch
Finding the smallest bend angle that fits matters for more than looks: shallower bends mean easier wire pulls, less strain on conductors, and fewer fittings and nipples.
Every screen has its own help with a diagram, and the colored input fields match the colored sides in the diagram.

Layout An Offset

Answers Offset

Conduit Length is the total length of the conduit of the finished offset, the start bend, the conduit if the offset, and the tail, if you know the length to the next box or fitting you can add it to the Conduit Length and cut and thread before you bend.
Offset Length is the length of the finished offset in a straight line
Start To Start lay out where the bends will start, use the travel to layout where the bends will finish. Concentric bend centers will change because the travel changes with each bend radius
Shoe Marks may be placed on either side of any bend depending on if they will fit in the bender. The center of the bends are where to mark bends for push through type benders
Tail is similar to shrink because Bend Aid finds the smallest WHOLE angle that will fit in the Length and it tells you how far the end of the offset will be from the second support or obstruction

Photo Gallery

Video

Menus

Right Triangle Example

Simple Offset Example

Offset Example

Offset Enter All

Offset Enter Any two

Layout An Offset

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