Being able to consistently grind your gouges to your preffered profile ensures maximum life of these tools.
Yesterday a fellow turner came by my shop and this topic came up. I showed him the jig that I adapted from Brian Clifford’s Design : http://www.turningtools.co.uk/widgets/grindingjig/grindjig.html.
Below are pictures showing the alteration using a 5/16″ dia pushrod from an old car engine instead of the fancy articulating leg on the original.
A one inch grid will help you scale off dimensions
They are not critical 🙂
Note: Although the photos above show the pushrood forward you can insert your gouge from the other side to effect a change of radius which will alter theangle ground .