SLDDRW: Constrain Centerlines/ Sectionlines to Temporary Axes
SLDDRW: Constrain Centerlines/ Sectionlines to Temporary Axes
(OP)
Hey gang.
I'm running 2004 , SP2.1.
I am generating a drawing of a cylindrical part. I have not previously had much luck selecting the the end of the temporary axis to accurately position the centerlines. So my workaround to place my centerlines is to insert a point onto the temporary axis, which auto-constrains, then constrain my lines to the point.
My problem is that I have an "old guard" type guy reviewing this drawing and the extra 'x' from my point is causing him to lose sleep at night.
Any ideas on how I can do this without the point?
Thanks
-wes
PS: I can't delete the point after the fact, because then I lose the constraints on the lines.
I'm running 2004 , SP2.1.
I am generating a drawing of a cylindrical part. I have not previously had much luck selecting the the end of the temporary axis to accurately position the centerlines. So my workaround to place my centerlines is to insert a point onto the temporary axis, which auto-constrains, then constrain my lines to the point.
My problem is that I have an "old guard" type guy reviewing this drawing and the extra 'x' from my point is causing him to lose sleep at night.
Any ideas on how I can do this without the point?
Thanks
-wes
PS: I can't delete the point after the fact, because then I lose the constraints on the lines.






RE: SLDDRW: Constrain Centerlines/ Sectionlines to Temporary Axes
We use the symmetric relation to position the center line. Just draw the centerline then pick it and the 2 silhouette edges of the cylinder and the symmetric relation.
mncad
RE: SLDDRW: Constrain Centerlines/ Sectionlines to Temporary Axes
The side view I can constrain directly to the temporary axis, then hide the temporary axes.
RE: SLDDRW: Constrain Centerlines/ Sectionlines to Temporary Axes
mncad
RE: SLDDRW: Constrain Centerlines/ Sectionlines to Temporary Axes
SW has a Centreline & Centre Mark icon in the Annotations toolbar.
Simply select the icon then the cylindrical face or circle.
RE: SLDDRW: Constrain Centerlines/ Sectionlines to Temporary Axes
We still draw centerlines because of the configuration of our parts. We will have a feature that is only on 1 side of the centerline but needs to be dimensioned as a diameter. If you use the Annotation Centerline you can't convert the dimension to diameter. I also use the same method for a section line thru center of the part.
mncad
RE: SLDDRW: Constrain Centerlines/ Sectionlines to Temporary Axes
It sounds as though you adding the dimensions in the drawing manually. Have you tried bringing in the dimensions from the part file? You'd then be able to dimension the part the way you want and you'd still be able to use the annotation centerlines.
- - -Dennyd
RE: SLDDRW: Constrain Centerlines/ Sectionlines to Temporary Axes
Are you trying to constrain a center mark or a sketched line? Can you constrain a regular sketched line?
http://www.EsoxRepublic.com
RE: SLDDRW: Constrain Centerlines/ Sectionlines to Temporary Axes
Have the above responses helped?
mncad
If you want to force the Diameter (Ø) symbol to a dimension, hold down the Alt key & type 0216 before the dimension (in the dialogue box) ie. Alt+0216<DIM> or type <MOD-DIAM><DIM>
TheTick
Yes, you can constrain sketch entities in a drawing.
RE: SLDDRW: Constrain Centerlines/ Sectionlines to Temporary Axes
I'm asking wesman if he is able to do it. Me, I've been doing it for years.
RE: SLDDRW: Constrain Centerlines/ Sectionlines to Temporary Axes
Sorry about that, I took it as an open-to-all question. I did think it strange that you would ask that type of question though ..... I'll be OK after another cup or two of
RE: SLDDRW: Constrain Centerlines/ Sectionlines to Temporary Axes
Bob
RE: SLDDRW: Constrain Centerlines/ Sectionlines to Temporary Axes
Tick -
1. Cannot constrain a sketched line.
2. Cannot constrain a section line.
A different (better?) description of the situation: I am unable to constrain a section line to the center of a circle. This circle happens to be the end view of a cylindrical part, so I was trying to constrain the line segment for my section to the temporary axis of my part. When I edit the sketch for the section line, I cannot select the endpoint of the temporary axis, therefore I cannot create a constraint.
You mentioned constraining to a hole axis, my part is actually a revolved part. Would this make any difference?
RE: SLDDRW: Constrain Centerlines/ Sectionlines to Temporary Axes
A Temporary Axis does not have end points!!!
In a side view you should be able to create a Colinear constraint between your section line & the Axis.
Also, assuming you have drawn your cylinder around the part origin & planes, then in an end view you should be able to use the origin or a plane to constrain to. You can make your origins visible from the View dropdown or select them & the planes from the View Manager.
RE: SLDDRW: Constrain Centerlines/ Sectionlines to Temporary Axes
The catch is that the axis must be exactly normal to the sketch plane. SW will signal this condition by showing the axis as a point (star/asterisk like symbol) If not, it will behave like a line segment with no endpoints.
Two things to check:
1.) Make sure your line segment belongs to the view. Give the view a little nudge and see if the line moves with it. Use "Lock View focus" when sketching to ensure that lines belong to views as expected.
2.) Double-check that the axes are indeed normal to the drawing plane. Inspect the model and drawing carefully.
http://www.EsoxRepublic.com
RE: SLDDRW: Constrain Centerlines/ Sectionlines to Temporary Axes
But, I still had problems selecting the center point after one line was constrained to it. After a little experimenting, I discovered a neat feature.
I moved both my horizontal centerline and my vertical sketch line (for the section line) away from the center point. I then selected the point, and both lines. After all three were selected, I was able to apply a midpoint relation and everything snapped into place.
Thanks to everyone for their quick response.
I have had much worse experiences with paid software vendor support lines. (Not SW)
-wesman