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Draw a line at an angle

Draw a line at an angle

Draw a line at an angle

Hi.  I'm new to CAD and draftsight, and would like to draw a line at a specific angle.  I know that you can do this with infinite line but I need to draw the line a certain length.  
I would also like to be able to draw a line and then draw a line at a certain angle to the first line.

thanks for any responses.


RE: Draw a line at an angle

Most of those videos don't run.  The getting-started-guide may have the answer but a quick search has only produced the polyline command which seems to allow an angle only if you are drawing an arc.


RE: Draw a line at an angle

I have never tried to create a specific line length at an angle in Draftsight. I always create & dimension the sketch geometry from known datums or other features. I strongly suggest you learn to do the same.

As an alternative, maybe try snapping the line onto the angled infinite construction line?

RE: Draw a line at an angle

<< I always create & dimension the sketch geometry from known datums or other features. I strongly suggest you learn to do the same. >>

WOW!  I would if I had any clue what you are talking about.

Does this mean that I should use trigonometry to calculate where the end point of the line should be?

Any chance you can give me an example?


RE: Draw a line at an angle

Use @(line length)<(line angle)

Steve R.

RE: Draw a line at an angle

Thanks Steve.  It works great and with the line command. Too bad the help for line command doesn't specify this as an option.

RE: Draw a line at an angle

gldrgidr, i found that the @(line length)<(line angle) command works great in reference to absolute X,Y.  But were you able to apply it in reference to another line???  I cant seem to figure that part out...

RE: Draw a line at an angle

"Too bad the help for line command doesn't specify this as an option."

I guess that's because @length,<angle is an AutoCAD syntax. Or maybe it predates AutoCAD. I've noticed there are quite a few other AutoCAD ways of doing something that are not shown in DraftSight.

RE: Draw a line at an angle

"But were you able to apply it in reference to another line??? I cant seem to figure that part out... "

If you have a line at some non-even number angle, an easy way to make a line a certain angle relative to it is to copy the line, pick its start as the base point ("From" point), then pick its end point as the "To" point.

Now you have what appears to be a single line, twice as long as the original. But it is actually 2 lines, thus you can select the 2nd line (the copy) and Rotate it. "Rotate" command, select the 2nd line, pick on the point that is the end of the 1st line/start of the 2nd as the Pivot Point (Center point or "Rotate About" point), then enter the angle you want it rotated.

I use circles to define line lengths many times. If your rotated line is longer than you want it, draw a circle from the start point of the line, with a radius equal to the length you want, then Trim off the excess. Then Erase the circle.

Or, if you need it longer, draw the circle, then Extend to it.

RE: Draw a line at an angle

Hi Im trying to trim of .08*.36mm out of all my rectangle ends in draftsight. Can you help me?

RE: Draw a line at an angle

If I interpret your statement correctly, you want to crop the corners of a rectangle so that they are angled, and the angle has a rise/run of .08 & .36.

Here's how I would do it:
From one corner of the rectangle, draw a circle with Radius = .08mm
Then from the same corner point, draw a circle with Radius = .36mm
Whichever way you want the rise/run, draw a line from the intersection of one circle and a side of the rectangle to the intersection point of the other circle and the adjacent side of the rectangle.
Now you have a line at your rise/run.

The quick way to replicate it to the other 3 corners of the rectangle is to use the Mirror command.
Type "mi" or click the icon.
Pick the angled line as the object to mirror.
Press the Enter key (or the spacebar).
Pick the midpoint of one side of the rectangle and then pick the midpoint of the opposite side as the "mirror about".
Press the Enter key, then press it again because you do not want to delete the mirrored object.
Now you have 2 angled lines in opposite corners.
Repeat the above Mirror process, except this time pick both angled lines as mirror bjects and use the midpoints of the other 2 rectangle sides as the mirror about line.
Now you have angled lines in all 4 corners.
Type "tr" or click the Trim icon, pick the 4 angled lines as Trim lines, press Enter to get to the next step, then click on the ends of the rectangle side lines to trim them off.
Now you have a rectangle with angled corners.

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