3D Printed Conductive Circuit - Train Crossing

pinshape

I wanted to create a 3D printed circuit using conductive ink similar to a Voxel 8 3D printer but on the cheap. I found some affordable conductive glue at Radio Shack and used it to make a 3D Printed Train Crossing Circuit powered by an Arduino board. The circuit simply flashes LEDs back and forth like a train crossing, with a crucial part of the circuitry consisting of conductive ink placed in custom channels created through a 3D print. To view more details about this project, visit my YouTube Channel at: https://youtu.be/k-52WRqUocw I utilized this conductive glue from Radio Shack: http://shack.net/1R1aNR6 Printing Details: * Printer: Makerfront * Rafts: No rafts were used during the printing process. * Supports: None were required for this design. * Resolution: A resolution of 0.3 mm was chosen for optimal results. * Infill: An infill percentage of 25% was used to achieve a balance between strength and weight. Notes: You can experiment with different fill options or resolutions if you prefer. I used clear filament to make the conductive ink more visible in the channels. Post-Printing Steps: To complete the circuit, simply apply the conductive glue/ink to the channels created during the 3D printing process, establishing the necessary connections for your project. I designed the traffic light with custom channels in Tinkercad.