Print at Dec 20, 2025, 6:26:50 AM

Posted by Puybaret at Aug 10, 2022, 10:35:03 AM
Re: Sketch-A-Graph type of hinge deformation
I agree this escape lader is nicely designed.

About simulating its deformation with Sweet Home 3D, Daniels118 was right to mention that the shapes bound to eachother must form a tree.

I suspect that the "sweethome3d_opening_on_hinge_1_and_sweethome3d_opening_on_hinge_2_1" as set on the right upright was the culprit
This kind of syntax is not correct: at the left of _and_ separator, there must be a text starting by sweethome3d_rail_, sweethome3d_hinge_ and sweethome3d_ball_, i.e. the name of the shape used as an axis or a ball.
At the right of _and_ separator, there must be a text starting by sweethome3d_opening_on_rail_, sweethome3d_opening_on_hinge_ or sweethome3d_arm_on_ball_ which will reference the rail, hinge or ball to which the shape you're naming is attached to.
You should probably use a name like sweethome3d_opening_hinge_3_and_sweethome3d_opening_on_hinge_2_1 and unfortunately, don't hope that some two way constraints can be applied between shapes.
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Emmanuel Puybaret, Sweet Home 3D creator