It was after more time than I would have liked that I realised that the two tapped
holes I had made were the answer to the problem. Photograph 7 shows the eventual
set up, using one of the square posts, also an angle plate described elsewhere on
The vee was eventually machined by first stepping the cutter along the horizontal
face and then down the vertical one. The cross slide being use to traverse the block
during machining. To get the vee central I marked the upper faces at the same distance
from each end. Then, deepening the cut until the cutter just touched the lines.
Chamfer all edges, generously where appropriate, paint the non machined surfaces
if you so wish and the vee block is complete. All that remains is to make two studs
and a clamp bar and two clamps for fixing the block to the machine table, Photograph
8. The slot in the clamp bar is not necessary it is just one of my milling machine
If you have made two vee blocks with the intention of making a matched pair, the
following will achieve that aim. Prepare a short length of bar about, 1" diameter
and 3" long, with one end faced and tapped, size about M8, or better, produce a Cylindrical
Square, details elsewhere .
With the angle plate on the vertical slide mount the above on the angle plate and
ensure that it is parallel to the cross slide traverse. Use a DTI off the front
edge of the post whilst traversing the cross slide to check the situation. Fix the
first vee block to the post using the block's own clamping facility and set the base
upright using a square off the lathe's bed. Place the second block alongside the
first and position similarly. Now lightly machine both bases to ensure that they
are at the same level relative to the vee, Photograph 9.
Next stage is to rotate each vee block so that their bases face up setting them square,
to the slide's face, and machine the ends, Photograph 10. Do lock the saddle at this
setting before repeating the operation on the other ends. This will ensure that two
vee’s are central to the ends. Having machined the second end leave the vee blocks
in this position and machine also the ends of the vee uprights and lock the saddle.
Turn the vee blocks, once again setting them square to the slide, and machine the
second other end.
You now have two vee blocks, Photograph 11, not precision, but almost, and adequate
for the majority of the tasks using them in pairs.