Sketch trim and extend in Solidworks - Cell-by-Cell Formula Trace

Sample Data

Coordinates of two lines in a sketch before trim and extend operations. Line1 is horizontal from (0,0) to (5,0). Line2 is vertical from (3,-2) to (3,2).

Cell	Value
A1	Line1 Start
A2	(0,0)
B1	Line1 End
B2	(5,0)
A3	Line2 Start
A4	(3,-2)
B3	Line2 End
B4	(3,2)

Formula Trace

Trim(Line1, Line2) and Extend(Line2, Line1)

Step 1: Identify intersection point of Line1 and Line2

Step 2: Trim Line1 at intersection (3,0)

Step 3: Extend Line2 to meet trimmed Line1 at (3,0)

Cell Reference Map

    A       B
1 |Line1 Start|Line1 End  
2 |(0,0)      |(5,0)      
3 |Line2 Start|Line2 End  
4 |(3,-2)     |(3,2)      

Arrows:
Line1 from A2 to B2
Line2 from A4 to B4
Intersection at (3,0) between Line1 and Line2

Shows the coordinates of Line1 and Line2 used to find intersection and perform trim and extend.

Result

    A       B
1 |Line1 Start|Line1 End  
2 |(0,0)      |(3,0)      
3 |Line2 Start|Line2 End  
4 |(3,-2)     |(3,0)      

Trimmed Line1 ends at (3,0)
Extended Line2 ends at (3,0)

After trim and extend, Line1 ends at intersection (3,0) instead of (5,0), and Line2 ends at (3,0) instead of (3,2).

Sheet Trace Quiz - 3 Questions

Where is the intersection point of Line1 and Line2?

A (5,0)

B (3,0)

C (0,0)

D (3,2)

Key Result

Trim cuts a line at intersection point; Extend lengthens a line to meet another line at intersection.