"Bob La Londe" wrote in message
news
"Jim Wilkins" wrote in message news
"Bob La Londe" wrote in message
news
Upon Some reflection, how about a thick bar suspended between two
or more jacks?
Hmmmm... I think I am getting into the area where I am just going
to have to try it and see.
First I guess I need to make some jacks with different heads. Flat
head, flat flanged stud head, etc.
Ultimately I am thinking I'll have to go back to the idea of
shoehorning two vises on the machines. Maybe a pair of 4 inch
screwless machined out to hold six inch stock to keep the weight
down, and have the compact length.
4 inch mill vise or lockdown vise will not fit inside enclosure
without hitting the doors. Just a hair too long. However my 6
inch screwless machined out fit just fine. I actually bought a
couple 4 inch lockdowns for those machines. Oops. On the other
hand they make great drill press vises. LOL.
Maybe it would be better to just sacrifice some of my tooling and
make some fixtures with edge clamps.
I definitely do not need another cup of coffee this morning. LOL.
If you don't mind modifying vises you could cut shallow work
locating
and clamping steps at the tops of the jaws and make support blocks
the
same height.
************
I definitely do not mind modifying vises. I have a bunch of
screwless and except for my 1 inch insert vises which already have a
stepped jaw I think I have machined at a minimum a stepped jaw in
all of them. I've also machined stepped jaw or soft step jaws for
most of my mill and lockdown vises. I think only the 2 4 inch
lockdown vises and a 4 inch Enco swivel base mill vise I bought
with some other stuff from a shop going out of business have
original jaws in them. I lost count of how many vises I have a long
time ago. Well over 20. Maybe over 30. I guess vises are one of
my vices.
Anyway, mounting support blocks on the table and milling them to
match the height of the jaw steps is a good idea. I can use 1" by
X" aluminum flat bar to try it out, and then if it works upgrade to
some more permanent pieces from 4140 or whatever I have on the bits
and pieces shelf.
My support block is a scrapped part from a prototype Segway.