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Extrude from linked sketch does not constrain to linked solid. (by wolfv)
This example make sense only if you open the attached .slvs files.

butt_joint_fail.slvs:
g003-tgs and g004-2x4-sketch are both linked from external files.
g005-extrude is extruded from g004-2x4-sketch.
Constraining any part of g003-tgs to the side of g005-extrude gets an error.
- the following constraints are unsatisfied.
- the following constraints are incompatible.
Is this a bug?
Constraining g003-tgs to the face opposite from g004-2x4-sketch works, but that's not what I need.

butt_joint_work-a-round.slvs:
The work-a-round is to create the sketch g002-sketch-in-plane in the file (rather than linking from g004-2x4-sketch external file).
Wed Jan 15 2025, 22:41:12, download attachment butt_joint.zip
(no subject) (by ruevs)
The problem is that constraints can modify entities (items) only from the current group. So if you try to add constraints that would have to move "g003-tgs" they will fail - and this is normal.

But if the constraint can be fulfilled by modifying only "g005-extrude" if will succeed. See the attached screen shot for such an example. It constrains one point from the "top" of "g005-extrude" to be in the highlighted plane of "g003-tgs".
Thu Jan 16 2025, 06:26:41, download attachment ValidConstraint.png
(no subject) (by ruevs)
The assembly tutorial (https://solvespace.com/box.pl) has some advice related to what you are (probably) trying to do.
Thu Jan 16 2025, 06:28:25
(no subject) (by wolfv)
Thank you ruevs.
Thanks to your explanation, it now all makes sense.
Fri Jan 17 2025, 21:31:49
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