Hi Vikki,
That rocker post you linked looks like something you could make out
of your old stock toolpost. Just whack it on the faceplate and cut
those rocker depressions in the lower tool ledge using your QCTP.
Make the radius match some off-the-shelf bar and you will have
minimal machining to make the rockers.
Sound feasible?
John
--- In 7x12minilathe@..., Victoria Welch <wrlabs@...>
wrote:
On Saturday 31 March 2007, steam4ian wrote:
G'day all.
Not wanting to rain on Rance's parade I have started a new topic.
Has anybody made, bought or used a rocking shim in the tool post?
The idea is that the bottom of the shim has a slight convexity
and
the tool tip height can be finely adjusted by differential
tightening
of the front and back screws. This replicates the adjustment
provided
by the cup washer and half moon shim in the old lantern style
tool
posts. Tip height adjustment does alter the tool rake but not
enough
to be a problem
The one I was considering (still am :) is this one:
MerchantID=RET01229&Action=Catalog&Type=Product&ID=82689
Seems like it should be solid enough. I like my QCTP, but it does
flex
sometimes.
My experience was with the a single rocker post that held one bit
on a
bigger machine, I liked it and it was easy to adjust.
I am concerned about the lateral tool rigidity, that is, the
likelyhood of the tool swinging back under load. Any comments.
Before I pick up some 50mm x 3mm flat and attack it with a file
it
would be good to hear from others.
Can't speak from experience on that one I linked to, but it
*looks*
good :). I need to ask them if that is for the 7x variety, at 5/8
max
for a bit, I am not sure.
Hope this helps!
Take care, Vikki (no connection to Micro-Mark).
--
Victoria Welch, WV9K/7
"I'm anti-war! Trouble is, the enemy isn't." -- Unknown
