VOB 2nd Grade
December 4, 2006
The worm gear has one tooth rapped around in a spiral.
The motor block instructions in the Simple Motorized Machine sets is green G.
Green F instructions also uses the worm gear.
The axle on the worm gear needs to be turned 24 times
to make the 24 tooth crown gear turn around one time.
The worm gear can drive another gear but it can not be driven.
By meshing gears from the motor block to the other model a motor can be used.
This group is getting the sets ready for the group tomorrow.
