Designed for the Hercules #8500 foam cutter available on Amazon and the Proxxon foam cutter. This sled will fit any foam cutter, as long as the slots in the bed are 5/16" wide.
Made from 1/8" MDF, requires assembly with common wood glue or white glue.
Operation video at YouTube, search for "Foam Cutting Sled for Hot Wire Cutters"