To cut a cable tray for a 45-degree bend, you need to make two 22. 5∘ cuts on two separate pieces of cable tray. Calculate centerline arc lengths, structural setback bounds, linear chords, and offset tray travel. 45° bend, horizontal, for all cable tray types of the series GKS. of 60 mm side height. Would someone kindly let me know the formula to create a flat 45 in say 100 mm cable tray for example. This bend provides a 45° change of direction when connecting straight cable tray sections, maintaining continuous cable support and routing through the turn. Materials and finishes available are mild. How to make cable tray bend / Cable tray offset formula / cable tray 45 degree bend Queries Solved in This Video: How to make cable tray bend / Cable tray offset formula / cable tray 45 degree bendQueries Solved in This Video:cable tray 45 degree bendcable tray me offset.