[modeleng] Re: Mico Mill Problems
- From: Allen Messer <al_messer@xxxxxxxxx>
- To: modeleng@xxxxxxxxxxxxx
- Date: Mon, 4 Oct 2004 05:59:33 -0700 (PDT)
Very interesting. In my ignorance, I had always
supposed that they were not shipped from the factory
unless/until they were dead on. Thanks for the info!
Al Messer
--- Lee Grant <leegrant@xxxxxxxxxx> wrote:
> I found this in the Yahoo Groups archive may help as
> the Mini Mill and the
> Micro Mill are similar in design.
>
> Lee
>
> Subject: Re: Tramming problem - Y-axis alignment
> There are actually four places for potential
> adjustment on these
> machines, one easy and three difficult.
> Unfortunately, they often
> need one of the difficult ones attended to first.
> The thing to do
> first is to check whether the column (Sieg calls it
> the "fuselage")
> is actually vertical with reference to the table, in
> both X and Y
> directions. Clamp either a good square or angle
> plate to the table
> and attach an indicator to the head. Move the head
> up and down with
> the indicator finger on the square or plate, in the
> X direction you
> can adjust the column the usual way but for Y you
> have to shim or
> scrape the mount. Once the column is vertical you
> can check to see if
> the spindle is perpendicular to the table by
> sweeping the indicator
> in the usual way. If the machine is out of tram at
> this point it is
> because the head is skewed. The head on these
> machines is in two
> parts which are bolted together without pins to keep
> them in
> alignment. These bolts are only accessable through
> the back of the
> assembly, which requires you to pull the head off of
> the column to
> get to them. If the head is out of square with the
> table when the
> column is truly vertical make the needed adjustments
> to the head,
> mine was OK in X but needed .006 in shims in Y. I
> originally thought
> it was the column that was off. Once this was taken
> care of
> everything behaved as it should. Good luck.
>
> Joe
>
> ----- Original Message -----
> From: "Lee Grant" <leegrant@xxxxxxxxxx>
> To: <modeleng@xxxxxxxxxxxxx>
> Sent: Monday, October 04, 2004 8:41 PM
> Subject: [modeleng] Re: Mico Mill Problems
>
>
> > I had a look at file on Yahoo groups
> > http://groups.yahoo.com/group/GrizHFMinimill/ for
> Tramming the head in on
> > the mini mill It said.
> > "With the column perpendicular to the table, turn
> your
> > parallel 90 degrees and check that the column is
> > perpendicular to the Y axis (saddle movement). It
> > should be very close with no intervention. If it
> > isn't, we can get into correcting this more
> serious
> > ailment later"
> > But he doesn't go on with how to correct it.
> >
> > Lee
> >
> > ----- Original Message -----
> > From: <peter.chadwick@xxxxxxxxxxx>
> > To: <modeleng@xxxxxxxxxxxxx>
> > Sent: Monday, October 04, 2004 5:58 PM
> > Subject: [modeleng] Re: Mico Mill Problems
> >
> >
> > >
> > >
> > >
> > >
> > > I seem to remember that one of my books on
> workshop practice suggests
> that
> > > the table should be angled slightly. A colleague
> has just got a drill
> from
> > > Warco, and that's slightly angled. I'll have to
> look it up when I get
> back
> > > home, and I'll be off list for a few days -
> another business trip - the
> > > 18th this year so far, with at least another 5
> to go.
> > >
> > > Peter Chadwick
> > > Swindon
> > >
> > > MODEL ENGINEERING DISCUSSION LIST.
> > >
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> > >
> > >
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