Auxiliary view clean-up in CAD: when you have created an auxiliary view, what is an efficient CAD technique to trim intersecting corners precisely to their meeting point?

Introduction / Context:
After projecting geometry into an auxiliary view, lines may overrun their intersections. CAD drafters often need a fast, exact method to trim corners to a clean intersection without manually picking trim boundaries multiple times.

Given Data / Assumptions:

• Standard 2D CAD tools are available (fillet, trim/extend, grips, hatch).
• Goal is precise corner formation at the theoretical intersection.
• We are finishing the auxiliary outline, not applying materials or annotations.

Concept / Approach:
Using a fillet command with zero radius acts as a combined trim-to-intersection tool. It deletes the overrun and forms a sharp corner at the exact intersection point. This is faster and more accurate than repeated trim and extend operations, especially on busy auxiliary views.

Step-by-Step Solution:

Verification / Alternative check:
Use object snaps to check that resulting corners lie precisely at the intersection of the original line extensions.

Why Other Options Are Wrong:

• Hatch tool: Fills areas; not for trimming geometry.
• Extend tool: Extends but does not trim both participants to the theoretical intersection automatically.
• Grips function: Useful for edits, but slower and less precise for repeated corner formation.

Common Pitfalls:
Leaving a nonzero fillet radius by mistake, which rounds the corner; always verify radius = 0 before use.

Final Answer:
0 radius fillet