Modular Cable Management Duct

This design was meant to be compatible (enough) with the 30x15mm cable duct management that is sold by the Swedish retailer Jula. My solution of the corner/junction parts are that the base duct has some limiting tabs which the original do not have so you cannot insert the base duct longer than needed. * Update 2026 (January 2:nd) * - Added fillets on the tabs to make them a little bit more sturdy.. The Duct itself : https://www.jula.se/catalog/el-och-belysning/elinstallation/kabelinstallation/kabelkanaler/kabelkanal-409065/ The corner/T-junction bits for the duct : https://www.jula.se/catalog/el-och-belysning/elinstallation/kabelinstallation/kabelkanaler/vinkelset-409073/ Plate 1 : Pieces for Corner, T-junction, Straight, Fourway, Endcap, S-Shaped covers, inner and outercorner, one base cable duct (50 mm) and one snap on lid for the duct. Plate 2 : One base cable duct (300 mm) with 4,5 mm mounting holes Plate 3 : One snap on lid for the duct (300 mm) Support is only needed (on my print