[Free-cad-general] Sketch question From: Bernard - 2013-04-08 04:47:46 ```Hi, I have a question while I am playing with the part design sketches. How can I create a length constraint of a sketched rectangle point with respect to an edge of a pad that the sketch sits on? I fail to select the edge of the pad as a reference line for the constraint. There is no problem creating a constraint wrt the coordinate axes of the current sketch system. The current sketch system sits on a face of the pad I sketched on the previous level. IMHO it would make sense to define constraints wrt an object's edges, e.g. 0 distance from an edge rather than defining a constraint wrt the sketch coordinate system where I would have to look up and repeat the dimensions of the pad to do what I want. I want that a new rectangle is locked wrt an edge of a part so that if I change the size of the part later, then that new rectangle moves with the change. So I must be missing something. BTW I have successfully converted my first geometric construction script with quite a few boolean solid operations from another package to FreeCAD successfully without problems :) I was concerned with unions of adjacent solids which don't work in the other package unless the solids overlap (being sunk into each other). No problem with FreeCAD. Many thanks, Bernard ```
 [Free-cad-general] Sketch question From: Bernard - 2013-04-08 04:47:46 ```Hi, I have a question while I am playing with the part design sketches. How can I create a length constraint of a sketched rectangle point with respect to an edge of a pad that the sketch sits on? I fail to select the edge of the pad as a reference line for the constraint. There is no problem creating a constraint wrt the coordinate axes of the current sketch system. The current sketch system sits on a face of the pad I sketched on the previous level. IMHO it would make sense to define constraints wrt an object's edges, e.g. 0 distance from an edge rather than defining a constraint wrt the sketch coordinate system where I would have to look up and repeat the dimensions of the pad to do what I want. I want that a new rectangle is locked wrt an edge of a part so that if I change the size of the part later, then that new rectangle moves with the change. So I must be missing something. BTW I have successfully converted my first geometric construction script with quite a few boolean solid operations from another package to FreeCAD successfully without problems :) I was concerned with unions of adjacent solids which don't work in the other package unless the solids overlap (being sunk into each other). No problem with FreeCAD. Many thanks, Bernard ```
 Re: [Free-cad-general] Sketch question From: Konstantinos Poulios - 2013-04-08 05:13:59 Attachments: Message as HTML ```Hi Bernand, please read the manual: http://www.freecadweb.org/wiki/index.php?title=Sketcher_External BR Kostas On Mon, Apr 8, 2013 at 6:47 AM, Bernard wrote: > Hi, > > I have a question while I am playing with the part design sketches. > > How can I create a length constraint of a sketched rectangle point > with respect to an edge of a pad that the sketch sits on? > > I fail to select the edge of the pad as a reference line for the > constraint. > > There is no problem creating a constraint wrt the coordinate axes of > the current sketch system. The current sketch system sits on a face of > the pad I sketched on the previous level. > > IMHO it would make sense to define constraints wrt an object's edges, > e.g. 0 distance from an edge rather than defining a constraint wrt the > sketch coordinate system where I would have to look up and repeat the > dimensions of the pad to do what I want. > > I want that a new rectangle is locked wrt an edge of a part so that if > I change the size of the part later, then that new rectangle moves > with the change. > > So I must be missing something. > > BTW I have successfully converted my first geometric construction > script with quite a few boolean solid operations from another package > to FreeCAD successfully without problems :) I was concerned with > unions of adjacent solids which don't work in the other package unless > the solids overlap (being sunk into each other). No problem with > FreeCAD. > > > Many thanks, > > Bernard > > > > > ------------------------------------------------------------------------------ > Minimize network downtime and maximize team effectiveness. > Reduce network management and security costs.Learn how to hire > the most talented Cisco Certified professionals. Visit the > Employer Resources Portal > http://www.cisco.com/web/learning/employer_resources/index.html > _______________________________________________ > Free-cad-general mailing list > Free-cad-general@... > https://lists.sourceforge.net/lists/listinfo/free-cad-general > ```