Apparent intersections on a sketch

[niceandeasy]

https://ibb.co/smrBJwJ

Is there a constraint so that the end of the line intersects the apparent edge ?
Thank you

[PrzemoF]

Welcome to the forum!

I'm not exactly sure what you need. Are you familiar with construction lines and linking external geometry functions?

https://wiki.freecadweb.org/Sketcher_ToggleConstruction
https://wiki.freecadweb.org/Sketcher_External

[niceandeasy]

Thank you for the reply, please see the image in the link of my post
Following the second link you provided I think I need to use the sketch external geometry tool.
Solved, thanks again !
Cheers

[PrzemoF]

OK, I got it now. I don't think FreeCAD has that function, but I do not know many things. You might have to use construction line to simulate it unless someone with more knowledge steps in.

Zrzut ekranu z 2020-07-01 09-47-45.png (3.34 KiB) Viewed 722 times

[niceandeasy]

With the external geometry (X shortcut) you suggested and clicking on the edges on the base of the part I was able to create horizontal reference lines to which I could apply restrictions and dimensions

https://ibb.co/9hX4zS2

It's curious that the image insertion does not seems to be working so I am posting the direct link to the image

Thanks again

[PrzemoF]

[..]It's curious that the image insertion does not seems to be working so I am posting the direct link to the image[..]

Did you upload the image as an attachment to the post? It should work

[niceandeasy]

Ahh OK as an attachment it worked

[chrisb]

I may add, that it is possible to use the edges as external geometry, but it is not recommended. You should rather use references to sketches to minimize the problems caused by the topological naming problem.

[niceandeasy]

Thank you !