Reply To: 2016 Q3 build challenge – derby cars Home › Forums › MOCs › Build challenges! › 2016 Q3 build challenge – derby cars › Reply To: 2016 Q3 build challenge – derby cars July 25, 2016 at 1:32 am #17144 Tom FrostParticipant Does anyone know the exact height of the center guide of the track lanes? Is it 1/4 inch plywood?
