Simply make the appropriate cuts in the side wall of the tray you are joining a length to, bend down the side wall, and attach a TX bracket either side. Riser links must always be installed in pairs, one on each side of the tray. A rung spacing of 6 to 9 inches (150 to 230 mm) is preferable when the cable tray cont d for instrumentation and control applications that require. - Create a cable tray type that do not automatic add fittings and use them to draw the ones flat against the wall (I have no idea how you did it). - Make copy of the fittings and set them to Workplane based + Not always vertical so that you can manually place them on the wall or any surfaces (hor. Our name originates from the OBO anchor: Until 1952, there was no way around it – anyone wanting to put an anchor into the wall had to drill a hole. However, OBO engineers were not satisfied with this and developed a metal anchor, which could simply be knocked into the wall. A true inno-vation for. This publication is intended as a practical guide for the proper and safe* installation of cable ladder systems, cable tray systems, channel support systems and associated supports. They come in various configurations, including horizontal bends, vertical bends, and tees. The Ladder Tray features light, rugged, tubular steel construction.