All of my mid 20th century machining resources depict the compound at 29 1/2 or a few degrees off perpendicular or parallel to achieve small(tenths) X or Z movements.
There also seems to be a modern approach that places the compound completely parallel with the bed ways (Z axis). Some proponents of this configuration advocate use of the crossfeed instead of the compound for threading. Dorian toolposts have drilled holes in the bottom for pinning to the T slot block in exactly this configuration.
What approach do you use and why?
There also seems to be a modern approach that places the compound completely parallel with the bed ways (Z axis). Some proponents of this configuration advocate use of the crossfeed instead of the compound for threading. Dorian toolposts have drilled holes in the bottom for pinning to the T slot block in exactly this configuration.
What approach do you use and why?