Rack and Pinion

Downloadable...
A working Rack and Pinion Gear to cut out and make. Print out the pages of this model onto thin card, follow the fully illustrated instructions and make your own working model . The download consists of one acrobat file which will take no more than a couple of minutes download. The file has three pages of illustrated instructions for the easy construction of your model and six pages which make up model sheets three for the front, three for the back.