Conduit Kit: Bend, Fill, Box

Conduit Kit: Bend, Fill, Box

Marks, cut length and box size

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Free
In-App Purchases

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Details

  • Released
  • Updated
  • August 28, 2026
  • September 1, 2026

Features

Conduit Kit: Bend, Fill, Box screenshot #1 for iPhone
Conduit Kit: Bend, Fill, Box screenshot #2 for iPhone
Conduit Kit: Bend, Fill, Box screenshot #3 for iPhone
Conduit Kit: Bend, Fill, Box screenshot #4 for iPhone
Conduit Kit: Bend, Fill, Box screenshot #5 for iPhone
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About

Know the length of the piece before you cut it. Pick the conduit and the kind of bend, type the dimensions — you get the marks measured from the end of the pipe and the cut length. Lay a tape on it and mark. ■ If it cannot be made, you hear it first The app finds the dimensions where the arcs would overlap (at 45°, an offset smaller than 2.688 in) before you bend, and switches you to an angle that works in one tap. ■ Kinds of bend 90° stub, custom angle, offset, 3-point saddle, 4-point saddle and parallel runs. Marks can be measured to the start of the bend, the center of the arc, or the theoretical corner. ■ Bend radius against the code Inside radius is shown with its source (NEC Chapter 9, Table 2 / Articles 342.24, 344.24, 358.24). The app does not reproduce tables — it cites them. ■ Not limited to a lookup table Fill is computed from the conduit ID and the conductor OD, so any size works, listed or not. NEC Chapter 9, Table 1. ■ Match the app to your bender Bend one 90° and measure the stub-up. That gives the real centerline radius of your tool, and every cut length after that matches what you actually make. ■ Keep it per job, hand it over on paper Add bends and sizing to a job and the take-off sheet builds itself. Sticks are counted by packing the longest pieces first, so the count is never short the way total ÷ stick length would be. Export it as a PDF. ■ Works with no connection Everything is computed on the device. Job records stay on this device only — they are not stored in iCloud, so they cannot move to a new phone. ■ About pricing The 90° stub (cut length and the radius check) and conduit size selection are free, always. Offsets, saddles, custom angles, parallel runs, pull box sizing, bender calibration, job records and the take-off PDF are a one-time purchase. There is no subscription. ■ Units and standards Switch between inch (NEC, North America) and mm (JIS, Japan). Conductor sizing is not offered in North America, because ampacity is given as a table (NEC Table 310.16) and showing only the voltage-drop half would give an answer that is too small. What the app shows is a guide for installation. Compliance and the final call belong to the job's own standards and a licensed electrician. Terms of Use: https://rainbowtree.work/app/terms Privacy Policy: https://rainbowtree.work/privacy/densenkan-keisan.html
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What's New in Conduit Kit

1.0.1

September 1, 2026

Thank you for using the app. This update revisits the details so everything feels a little smoother, including parts you may never notice. If anything catches your eye, please let us know from the contact form inside the app. Your notes are what shape the next update.

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Subscriptions & In-App Purchases

$9.99

Conduit Kit Pro

Offsets, saddles, sizing and the take-off PDF

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