The Tormek crew has recently released a very informative new video centered around cambering plane blades. Also included is valuable information covering grinding wheel housekeeping (truing, dressing and deburring) and good technique to avoid water trough noise with the T8.
This video also reflects the evolving refinement of the Tormek videos, namely more effective use of close ups. Here is a link:
https://youtu.be/TIicRhEh57E?si=17Si_fg0bImvLdNV
Earlier videos focused primarily on getting a square grind with chisels. While also important, in my opinion, this is a secondary function. Nicking the corners to avoid "plane tracks" is a good starting point, but not "the highest and best use" of a plane blade.
Cambering allows the plane to be tuned to different functions. Heavy cambering is usually used for rough initial planning. This is generally done with a jack plane. Heavy cambering blades are set for a deep cut and a narrow width.
The second function is jointing. The planes of choice for this function are longer. Cambering is set for a cutting depth of approximately .005". This is to joint or level the edge.
The final function is smoothing. These planes are shorter. The blades are set for a cutting depth of around .001. This is preferred over doing a lot of sanding.
In skilled hands, properly cambered plane blades can produce fine woodworking.
Ken
Quote from: Ken S on Yesterday at 04:10:50 PMHeavy cambering is usually used for rough initial planning.
Good summary Ken. A plane with heavy cambering is called a "Scrub Plane". I have a plane that was purpose built as a scrub plane with the length of a jack plane a narrowish sole and heavy camber with rudimentary settings. It quickly flattens boards ready for the jointing plane. Unfortunately the camber is too heavy for the SE-77 so I use the SVD-110 at the set angle and freehand the camber.