Micro RC Crawler Foam Course
By Dan Carmichael
This is a modular Micro rock course. I started off by laying out some specific features that I wanted to see with EPS foam sheets and carved from there. The finished course is 40×40 inches by 15″ tall and weighs only 14 lbs. It is coated with Exterior Foam Coat for a realistic rocky texture.
Everything is held together with low temp hot glue and toothpicks here.
Sculpting was done with the Freehand Router (tool on the left) – you could use a Sculpting Tool (tool on the right) but it uses a thinner wire which can be tricky to get to keep its shape. I also used the Exterior Foam Coat for a grittier texture with Boost mixed in to make it even stronger. Boost makes a thin (3/32″ – 1/8″) layer super strong.
Then I brushed, dabbed and drizzled the Foam Coat mixture all over the course. As the coating starts to harden a bit you can putty-knife the last bits of it into any cracks or seams you wanna get rid of.