The Unofficial LEGO Technic Builder’s Guide

The Unofficial LEGO Technic Builder’s Guide Second Edition 426 pages Like New/Excellent Condition Best-selling guide in learning the foundations of LEGO Technic building from simple machine concepts to advanced mechanics. It has 13 new building instructions and 4 new chapters on wheels, RC system, planetary gearing, and 3D printing. *** To avoid high shipping charges, only one book at a time can be purchased/shipped. Thank you. * From a pet and smoke free home