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# Using midpoint to align entities

neil_preston
Member Posts:

**12**✭I cannot seem to make 'midpoint' work in any useful manner. If I select a tool, selecting the midpoint tool deselects the first tool. For example:

1. I draw a construction line perpendicular to a line segment. I want to align (move) the construction line onto the midpoint of the line segment. Nothing works.

2. I want to draw a 3 point arc with the center of the arc aligned with the midpoint of a line segment. Any attempt to select the arc and the midpoint cancels the arc selection. Same with a circle.

How can this be accomplished?

0

## Answers

625✭✭✭Or select the midpoint tool then the line and center point of circle. Arc/line is already drawn.

no need to hunt down mid point of construction line.

Mid point isn't always selectable when drawing an object.

2,071PROWebsite: ovyl.io

12✭This is what I want to do, and I find that I frequently want to do it. The blue line is the X axis. I want to center the red rectangle on the X axis. I tried dimensioning the distance from the end to the X axis at 8 mm, but it errored out with the message "sketch could not be solved." (That's why it's still red.)

It seems that I should be able to select the midpoint tool, then select a line to define the midpoint, then use the 'coincident' tool to bring them together.

5,47712✭However, I often need to center a line on a construction line or an axis or other similar structure.

It seems like I ought to be able to use the midpoint tool to identify the midpoint of a line, then use the coincident tool to align it with the construction line, or an axis, or other line.

What methods can be used to do this?

5,477