Here's a quick change toolpost I've been making, courtesy of
the cheap foundry. Any of the pics can be clicked
for a full size version.
||12-Oct-2002: I've made up a tool
from some Stubs silver steel to cut a 60 degree dovetail. It's a
very basic tool and surprisingly, it works well.
||This is a casting for the tool
holder. Another (larger) casting was used to make the quick change
toolpost body (see below).
This was carried out as an
"open" casting, i.e. just a square hole in the sand.
||This is the quick change toolpost body, it
weighs about 450gm (about a pound). It's based on a neat QCTP idea
which you can see by clicking
here. If you check the web link, I thought it was a bit crowded
on the top so I spun the operating lever 90 degrees so it was facing the
Where the actuating cam feeds through the
body, I've put some brass bushes in there so it should last for quite a
||Here's the finished article - rough is the
key word here although it works
well. I now have to work out a way of casting a number of tool
holders all at the same time as one holder is not much use.
Perhaps a plaster mould? This would
at least get the size pretty accurate to minimise the amount of machining.