Lego Duplo Car Coupler Repair / Replacement

thingiverse

My Nephew broke the coupler on a Lego Duplo trailer so naturally a had to fix that. I printed and tested version 1 and it works well. Version 2 brings a few changes to make it a more faithful reproduction but I haven't bothered to try it yet. The design isn't a perfect copy because I needed to add surface area for gluing and didn't want to rely on the layers to stay together when snapping two parts together. I used side cutters to remove what was left of the original coupler then sanded down any remaining ridges. I sprayed accelerator on the trailer and put CA on the back of the coupler. I snapped the coupler onto another trailer to get the height right, centered it on the trailer and pressed firmly until the glue had set. So far the repair seems permanent. Print Settings Printer: Monoprice Maker Select Rafts: No Supports: No Resolution: 0.1mm Infill: 70%