Printable ogoo mold for making RC car traffic cones (pylones)

thingiverse

Create traffic cone molds for your RC cars using ogoo, an affordable and simple-to-use silicone caulk-based DIY molding material. The example molds in the photos measure 80mm at the base and 30mm tall, designed for racing with 1/18 scale RC cars. To use ogoo, follow safety precautions outlined on the cartridge and refer to instructions such as http://www.instructables.com/id/How-To-Make-Your-Own-Sugru-Substitute/. The provided SCAD file is fully parametric, allowing you to create various shapes; examples are supplied as STL files. Creating a hollow interior was not pursued due to complications in molding and ogoo's affordability. With ogoo, you can make approximately three cones from one cartridge for under 2 EUR. The filled cones offer added weight, which is beneficial when compared to lightweight, easily-disturbed plastic cones. The write.scad library by Harlan Martin (http://www.thingiverse.com/thing:16193) is used for writing on top of the cones. To create your molds, adjust the SCAD file's parameters to suit your needs, such as base and top diameters, height, writing, and number of corners. Render both the mold and molded object if show_positive param is set; otherwise, only render the mold. Print the mold upside down in your host software and use 2 perimeters, 15% infill, and single top and bottom solid layers. After mixing an appropriate amount of ogoo (silicone caulk mixed with starch), press the oogoo into the mold quickly as it sets within 10-15 minutes. Trim excess oogoo and smooth the surface using a soaped finger. Allow the oogoo to set before carefully removing the cone from the mold, trimming any rough edges. The resulting heavy cones provide increased stability compared to lightweight plastic alternatives.