Mapping Different Plane Sketch

[duckmug]

I am slightly confused about something.

I have a sketch on the XY plane that I pad. (1)

I have another sketch on the XZ plane that I also pad. (2)

if I map the second sketch on the XZ plane, it works as desired, but this way if I increase the pad of the first sketch, it will not move accordingly, since the the two sketches/pads are not mapped to each other.

What is the correct way to approach this?

[chrisb]

Use Sketcher External.

[duckmug]

I am not sure what you mean, I don't want to set constraints between the two sketches, I just want to map it to that face.

If I do that, the second sketch gets flipped like if it's XY, while I want it to be XZ.

[drmacro]

You need to set the sketch Attachment offset of the second sketch using an expression that refers to the pad thickness of the first pad.

(It's that parametric part of FreeCAD...)

See the properties of Sketch001 in my version of the file:

g-mac.png (39.23 KiB) Viewed 425 times

[duckmug]

Oh I see! So it is not suggested to map it somehow to the face in this kind of situation but rather do that? Thanks a lot!

[drmacro]

Oh I see! So it is not suggested to map it somehow to the face in this kind of situation but rather do that? Thanks a lot!

At this point mapping to generated geometry (faces, edges etc.) is not recommended because of the topological naming problem.

In the long run what I showed is a better workflow in any case and learning how to use sketch placement properly will always be a good skill to know.

[duckmug]

Got it!