On 8 October 2017 at 01:45, Chris Albertson wrote:
> Has anyone been able to measure column flex.
I haven't measured it, but with my mini-mill you could slap the side
of the head and watch it all go "sproing".
--
atp
"A motorcycle is a bicycle with a pandemonium
You would NEVER bolt a machine to a building. If you are worried about
flex, You might double up the column
and connect that to the base. You might add 50pounds of steel but you'd
still not bolt that to a building
Has anyone been able to measure column flex. Possibly with a nail
indicator.
On 7 October 2017 at 18:33, Chris Albertson wrote:
> Of course no one here worries about nanometers, but still those ideas
> posted here about bolting
> a milling machine column to a wall are exactly backwards.
I think that depends on whether your interest is in
If you look at semiconductor fabs where that make parts with features sizes
as small as 10 nM now
they seem to never bolt equipment to the floor. No matter how strong your
machine is, bolts will
distort the frame. They take strong measures to isolate the machines from
the building.
Of course
On Saturday 07 October 2017 12:30:05 dave wrote:
> Rather a cute idea. :-)
> So taking it a step further ... use a double column of CMU for the
> headstock and a single column to support the tailstock.
> Epoxy the CMU to make a good column but don't epoxy to the floor.
> Use a rod end or
Rather a cute idea. :-)
So taking it a step further ... use a double column of CMU for the
headstock and a single column to support the tailstock.
Epoxy the CMU to make a good column but don't epoxy to the floor. Use
a rod end or automotive ball and socket to relieve stress on the
It does seem a lot simpler now...assuming I understand the whole idea. So
the only difference in the stand itself is the single contact point on the
tailstock end? There is nothing different on the headstock end then, correct?
I like your idea about using the Chevy truck upper ball joint in my
On Wednesday 04 October 2017 05:43:19 andy pugh wrote:
> On 4 October 2017 at 02:32, John Bald wrote:
> > Has anyone built or familiar with the "spanning beam" or "torsional"
> > beam lathe stand?
>
> It seems to be giving a fancy name to a simple idea.
>
> I would imagine
On 4 October 2017 at 02:32, John Bald wrote:
> Has anyone built or familiar with the "spanning beam" or "torsional" beam
> lathe stand?
It seems to be giving a fancy name to a simple idea.
I would imagine that a single pin joint at the tailstock end would
isolate the
Ok, I see what you mean now. That's very interesting. I was wondering what
others thought about the torsion beam idea in general and if anyone else
had built one what their experiences/impressions were. My shop is inside of
a customized old semi trailer, so there is no foundation footings and a
My point was more on the shape and arrangement of the beam/s when using
epoxy granite with metal tubes and beams than epoxy granite and its
formulation.
-Bari
On 10/03/2017 09:03 PM, John Bald wrote:
> Isn't that the same thing as the epoxy-granite used for machine tools
> I mentioned in my
Isn't that the same thing as the epoxy-granite used for machine tools I
mentioned in my original post, or is this something different?
Sent with AquaMail for Android
http://www.aqua-mail.com
On October 3, 2017 8:51:17 PM bari wrote:
Check out chapters 4 and 5 if you'd
Check out chapters 4 and 5 if you'd like to see how to add dampening to
a beam with polymer concrete/granite.
Principles of rapid machine design
https://dspace.mit.edu/bitstream/handle/1721.1/88839/45993343-MIT.pdf?sequence=2
-Bari
On 10/03/2017 08:32 PM, John Bald wrote:
> Has anyone built or
Has anyone built or familiar with the "spanning beam" or "torsional" beam
lathe stand?
users.tpg.com.au/agnet/cq9325rev4.html
Some youtube videos about them too. Idea is based on methods used for
lathes on ships. I wonder if one could fill the square tubing with
epoxy-granite for added
14 matches
Mail list logo