Machining an Vee Block03

Harold Hall


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 site.


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 workpiece clamps.


Matched pair

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.


Workshop Projects

Vertical Slide, machining a small vee block
Vee Block, small
Vertical Slide, machining a small vee block
Vertical Slide, machining a small vee block
Vee Block, small, Matched pair