Anyone here capable of gear cutting?

[awemawson]

Make a roll of Plasticine, flatten it on the bench, roll your gear along it to form a rack in the Plasticine, Cut along the centre of your rack to give a sharp edge, and measure the inclination of the teeth with a protractor. You may need to chill the Plasticine in the 'fridge before you slice it to avoid 'pulling'

Andrew