Amazing Marble Machine Pattern Pack - DOWNLOAD
Patterns and Instructions for 30"-tall marble roller
Ships in 1 - 2 business days
This incredible 30"-tall marble tower will delight and astonish your family and friends. Detailed step-by-step instructions and patterns will help you build ramps, chutes, a spiral staircase, and a dumping bucket using just a few standard tools and materials. The finished machine runs for nearly six minutes as oversized marbles clatter and swoop down the tower.