If a half joint is to be made to clamp onto the dovetail a very small dovetail cutter
would be required, but as this is unlikely to be available, and in any case precision
is not required, then the shape can be done by hand using a small triangular file
after milling a recess for it.
These are another essential requirement with a range of lengths and at least two
of each length being beneficial.
This simple item provides a very rigid mount for whatever use the system it is being
put to, I say whatever, as it will be seen that it has many and varied uses, typically,
Photograph 6 shows it being used on the lathes cross slide to mount an indicator.
In this case the mount could stay there whilst convenient and a second mount made
for use elsewhere.
The mount is seen top centre of photograph 2 and to its right a tee stud for mounting
it on the lathe. A larger version of the tee stud would be required if to be used
on the milling machine table, as would a larger washer for placing under the mount.
This part is very similar to the table mount but as it has only to be fitted the
once I have used just a single flat for the spanner rather than a hexagon. photograph
1 showed this in use and Photograph 7 a close up of how it is mounted on my machine.
In many cases this item will need changes to suit the machine on which it is being
mounted. With this requirement in mind I consider it unfortunate that milling machine
makers do not at least provide some mounting surface for anchoring a dial indicator,
as for me, using an indicator in this way is an essential feature of using a milling
If no easy method of fixing a mount off the machine's head is available then some
method off its column would seem the only other option. As there will be a multitude
of methods I can only give two suggestions which will need to be adapted to suit
the machine in question, Sk. 1 .