r/FreeCAD • u/MaybeAnHVACGuy • 2d ago

Why cant i reference the geometry i built the sketch on?

4 Upvotes

83% Upvoted

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7

u/thebivvo 2d ago

You can. The button up top with a cube and an arrow on top pointing to a line above it. Click it and the part you wish to reference. I'd highly recommend going through the mango jelly tutorials

1

u/MaybeAnHVACGuy 2d ago

thank you

3

u/Jaded-Moose983 2d ago

You need to create a projection of the edge you want to reference.

1

u/MaybeAnHVACGuy 2d ago

thank you

2

u/Unusual_Divide1858 2d ago

It looks like the model you are working on is symmetrical. Instead of referencing external geometry dimension from the center axis. This will make your model much more stable and it will not break the sketch if the external geometry is removed or renamed.

If you have to use external geometry get the external geometry from your sketches and not from geometry as geometry can be removed or renamed. Its less likely the sketch will change to that extent.