🧾 What these commands do
The Trim and Divide commands allow you to modify CAD elements by either shortening them to intersection points or splitting them into multiple segments. These tools work with lines, circles, and arcs using various reference methods including other geometric elements, specific measurements, or point locations.
The pulldown menu has an abbreviated set of these functions for quick access; the full set are available by turning on the right-hand menu and selecting CAD.
🔧 CAD > CAD Edit > Trim Commands
Line > Trim
Trims multiple lines to their intersection points with a reference line.
How to use it:
Select the reference line
Select the lines to be trimmed
Right-click to abort selection and confirm
Click near the end of the lines you want to trim
Each selected line has its endpoint moved to the intersection point with the reference line.
Circle > Trim
Trims multiple lines to their intersection points with a reference circle.
How to use it:
Select the reference circle
Select the lines to be trimmed
Right-click to abort selection and confirm
Click near the end of the lines you want to trim
Curve > Trim
Trims multiple lines to their intersection points with a reference curve.
How to use it:
Select the reference curve
Select the lines to be trimmed
Right-click to abort selection and confirm
Click near the end of the lines you want to trim
Length Trim
Trims multiple lines to a specified length.
How to use it:
Specify the desired length
Select the lines to be trimmed
Right-click to abort selection and confirm
Click near the end of the lines you want to trim
Lines can be increased or decreased in length as they are treated as having infinite extensions.
Incremental Length Trim (Incr-Len)
Trims multiple lines by a specified incremental length.
How to use it:
Specify the incremental length (positive to increase, negative to decrease)
Select the lines to be trimmed
Right-click to abort selection and confirm
Click near the end of the lines you want to trim
🔧 Line > Divide Commands
Number Division
Divides a line into a specified number of equal segments.
How to use it:
Specify the number of segments
Select the line to divide
Point Intersection Division (Point-Int)
Divides a line at points projected from reference point locations.
How to use it:
Select the line to divide
Select the reference point location
The division point is the closest point that can be projected onto the line through 3D space from the reference point.
Line Intersection Division (Line-Int)
Divides a line at its intersection point with a reference line.
How to use it:
Select the line to divide
Select the reference line
Circle Intersection Division (Cir-Int)
Divides a line at its intersection point with a reference circle.
How to use it:
Select the line to divide
Select the reference circle near the intersection point
Length Division
Divides a line at a specified distance from one endpoint.
How to use it:
Specify the length
Select the line near the endpoint you want to measure from
🔧 Circle > Divide Commands
Number Division
Divides a circle into a specified number of equal arcs.
How to use it:
Specify the number of arcs
Select the circle to divide
Division begins at the circle's start point.
Point Intersection Division (Point-Int)
Divides a circle into two arcs using a reference point location.
How to use it:
Select the circle to divide
Select the reference point location
Line Intersection Division (Line-Int)
Divides a circle into two arcs at its intersection with a reference line.
How to use it:
Select the circle to divide
Select the reference line near the intersection point
Circle Intersection Division (Cir-Int)
Divides a circle into two arcs at its intersection with a reference circle.
How to use it:
Select the circle to divide near the intersection point
Select the reference circle
Incremental Angle Division (Incr-Angle)
Divides multiple circles using specified incremental angles.
How to use it:
Specify the incremental angle and number of divisions
Select the circles to divide
Select a point location to define the start/endpoint for angle measurement
🔧 Arc > Divide Commands
Number Division
Divides an arc into a specified number of equal arcs.
How to use it:
Specify the number of arcs
Select the arc to divide
Point Intersection Division (Point-Int)
Divides an arc into two arcs using a reference point location.
How to use it:
Select the arc to divide
Select the reference point location
Line Intersection Division (Line-Int)
Divides an arc into two arcs at its intersection with a reference line.
How to use it:
Select the arc to divide near the intersection point
Select the reference line
⚠️ Important Notes
3D Space Considerations:
Lines are treated as having infinite endpoint extensions when determining intersections
All elements (lines, circles, arcs) are 3D model entities
Elements that appear to intersect in the current view may not actually intersect in 3D space
Arc References:
When an arc is selected as a reference for circle or line operations, it's treated as a complete circle
Operations will occur wherever the imaginary complete circle intersects the target element
Circle Direction:
Circle direction depends on how it was originally inserted
Direction can be changed using the Group Change-Dir command
This affects how incremental angles are measured