... and its mirror image I've added some construction lines to help position the chairs. There's a center-line through the crossing with lines perpendicular to it to align the chair bases. The jaws with seats are aligned with the rail rather than the base. This means that the bases are properly aligned but, depending on the crossing angle, the body of the jaws can be rotated slightly from where they should really be, but with 3D printing at small scales it will be almost impossible to detect. Again in plan view. 2983_172226_060000000.gif posted: 18 Jul 2018 04:47 from: Andrew Barrowman Hi Martin, If you can post a DXF or a BOX with a couple of chair markers embedded as 2D blocks I'll try to substitute them. It's either going to work, or it won't. There is no point in you expending a lot of energy on this if it doesn't simply work. Andy Last edited on 18 Jul 2018 04:51 by Andrew Barrowman posted: 18 Jul 2018 04:52 from: Martin Wynne Andrew Barrowman wrote: If ...