constraining to an edge
constraining to an edge
(OP)
Hi,
I have some questions concerning constrainingto edges:
1.How can I create a midpoint constrain (e.g. between a sketch line endpoint and an existing edge)? Must I project the edge first, then convert it to a construction geom and then constraining it?
2. Is there a way to automatically create constraints while creating the sketch geometry (midpoint, concentric, coincident, etc). for example, I would like to sketch a circle that is concentric to an existing circular edge.
3. Is there an "equal radius/diameter" constraint (when I require two arcs to be of the same radius)? Couldn't find it.
4. A general question: Must I exit the sketch before using a sketch-based feature (pad, pocket, etc)? Can't I save this click of exiting the sketch?
I'm a newbie with Catia (V5R12), but have years of experience in SolidWorks and CV.
Thx,
Catia.
I have some questions concerning constrainingto edges:
1.How can I create a midpoint constrain (e.g. between a sketch line endpoint and an existing edge)? Must I project the edge first, then convert it to a construction geom and then constraining it?
2. Is there a way to automatically create constraints while creating the sketch geometry (midpoint, concentric, coincident, etc). for example, I would like to sketch a circle that is concentric to an existing circular edge.
3. Is there an "equal radius/diameter" constraint (when I require two arcs to be of the same radius)? Couldn't find it.
4. A general question: Must I exit the sketch before using a sketch-based feature (pad, pocket, etc)? Can't I save this click of exiting the sketch?
I'm a newbie with Catia (V5R12), but have years of experience in SolidWorks and CV.
Thx,
Catia.





RE: constraining to an edge
create arc, add R15 constraint
create arc, add R15 constraint
rmb on const to modify / radius.2 object / edit formula
=a table, click on constriant to "copy" from and result will be R15 f(x). When you modify the R15 constraint, the R15 f(x) will follow.
Laura
RE: constraining to an edge
I know that I can set an equal value to both dimensions, but can't I avoid it? Isn't there a geometric constraint "equal radius" when selecting arcs/circles without having to dimension them first (or at least constraining only one of the two)?
Do you have an idea of #1, #2 and #4?
RE: constraining to an edge
Good Luck!
RE: constraining to an edge
I understand that there is no "shortcut" and quicker method to do it "on-the-fly" as I create the geometry, only as a 2nd operation after the geometry is sketched. Quite disappointing I must say...
Catia.