Combine 2E1Y version v2 (2E1Yv2)

1. Purpose

Joins a distant branch into the main as a 2-elbow + 1-Y-branch assembly using the version-2 algorithm. Use it when both the standard build and version v1 fail — version 2 covers the remaining geometry style.

2. Quick video (≤ 2 minutes)

[Video in production — follow the steps below for now.]

3. Steps

1. Open a 3D view showing both the main and the branch to join. [image 01: main and branch before joining]
2. Click 2E1Yv2 inside the Gom pulldown in the VP_MEP tab, Plumbing panel.
3. When asked to pick the main pipe, click it. [image 02: picking the main pipe]
4. When asked to pick the branch pipe, click it. The tool builds the 2-elbow + Y-branch assembly with the version-2 algorithm. [image 03: the finished version-v2 assembly]

4. Real-world example

A DN110 branch is both skewed and offset in elevation from the stack; the standard and v1 builds both give up. Switching to 2E1Yv2 — the version-2 algorithm builds the elbow assembly for exactly this offset, saving three hand-sketched segments.

5. Common errors

Symptom	Fix
Esc mid-way loses everything	The command works as a pick pair — restart from the main-pipe pick
All three versions fail	The run is too tough — sketch two elbows by hand, then fix up
The assembly lands with a gap	The DN pair has no shared tee size — check both DNs, then rerun

6. See also

• Combine 2 elbows 1 Y-branch — the standard build; try it first.
• Combine 2E1Y version v1 — the second algorithm for tough runs.