Hi,
You could try to draw the curved path with round walls (read FAQ How can I create round walls? if needed) then place the chairs along this wall. Even if magnetism doesn't work perfectly with round walls, it will help you to place them at the tangent of round walls. It seems to work better to add the chair first then place it along a wall.
See attached example.
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ChairsAlongCurvedPath.sh3d
(20409 bytes)
(Download count: 88)
(Chaires placed along round walls)----------------------------------------
Emmanuel Puybaret, Sweet Home 3D creator
