Tom,
I looked at your photos. Nice work. I think you made the right
move going with 4 screws to hold the tools. I like the height
adjustment arrangement you used too.
Are those titanium coated carbide inserts in your pictures? I
recently got some and have been experimenting with them, but
haven't found the right combination of speed and depth of cut
to make them work well. What are you doing on steel and aluminum?
B Flint
-- In 7x12minilathe@..., "tomdoyle123456789"
<tdoyle@m...> wrote:
I recently completed the Cam Action QCTP project described on
mini-lathe.com. It works very well and I am very happy with it.
I made a few changes you might want to consider if you decide to
build it. I added a parting tool holder and changed the way the
height adjusting screw is tensioned. The height adjusting screw
tensioning described on mini-lathe.com would not work with the
parting tool so I used a more traditional method on all the tool
holders including the parting tool. Used a 3/4" 10-34 set screw
threaded 1/4" into the tool holder.
A knurled 3/16" thick adjusting screw is made from 1/2" brass rod.
A split washer and 10/32 nut hold the adjusting screw in place.
I used 4 screws to hold the tools in place rather than two.
Made the cam shaft from 1/2" drill rod which allowed the use of
1/4" rod for the handle. I posted some fairly nice photos in the
photos section. The close up photo of the parting tool (look at
it in full size) should tell the story If anyone needs more info
on the parting tool holder let me know.
tom ...
