Please help with CAD design

[anthony113]

Hi, I have virtually no CAD experience and I was wondering if someone who did could design something similar to this: http://www.jbkcine.com/KITA1.JPG for me please. Basically what this is is a follow focus system that would fit onto rods attached to a DVX100 camcorder. turning the black knob causes the little white gear to turn by a belt connected to the brass pulley thing. the little silver thing under the brass pulley lets the "arm" stay clamped in a certain position. heres a pic of it on the camera: http://www.jbkcine.com/dvx100packag.JPG any help is much appreciated thanks!