Gentlemen,
how come that some messages have appeared twice lately, sent at the same
time? For instance, this one:
Peter
Am 24.01.2022 um 16:44 schrieb Jon Elson:
I had a Palmgren rotary table with XY linear slides, similar to the
one in recent pictures. The handles were different, otherwise
I had a Palmgren rotary table with XY linear slides, similar
to the one in recent pictures. The handles were different,
otherwise I'd say mine was identical. But, I found the XY
slides to be VERY floppy, it made machining very difficult.
It caused terrible chatter and poor finishes. I was
Knight Foundry in Sutter Creek, California still does iron casting.
https://knightfoundry.com/
On Sunday, January 23, 2022, 12:27:00 PM MST, Matthew Herd
wrote:
Depending on size, I’d consider some “durabar” or similar continuously cast
iron bar. I made a compound for my atlas lathe
> > From: andy pugh [mailto:bodge...@gmail.com]
> >
> > But, making patterns and having parts cast is _fun_ :-)
> >
> > --
> > atp
>
> Oh and here's the core box.
First crack at the core using the instructions from Dave Gingery's building a
lathe from scrap series.
Very fine sand, 20 Table
On Sun, 23 Jan 2022 at 23:30, fxkl47BF--- via Emc-users
wrote:
> It looks like Palmgren had a passel of those.
> https://vintagemachinery.org/pubs/2459/16973.pdf
Page 14 shows a base design that could be copied.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed
On Sun, 23 Jan 2022, John Figie wrote:
> While looking at your photos I realized that I could have almost the same
> rotary table. It was recently given to me. Mine is a craftsman and is
> mounted on an x-y cross slide. but some of the castings look the same to me
> in the picture. Yours has a
I suspect that a mini-mill would have issues with an 8-inch rotary table.
-Original Message-
From: andy pugh
Sent: January 23, 2022 2:39 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] rotary table re-engineeering
On Sun, 23 Jan 2022 at 18:59, Chris Albertson wrote
Known good part obscures the problem of shrinkage unless you want them
to take your known good and scale it for shrinkage which they will do at
$$/hr. ;-)
Working from their shrink % will allow you to do the sizing and that
make it simple for them.
A foundry 100 mi or so from me and out in the
On Sun, 23 Jan 2022, andy pugh wrote:
> On Sun, 23 Jan 2022 at 18:59, Chris Albertson
> wrote:
>
>> But this is for a "*mini*-mill" you do NOT need cast iron parts.
>
> He said it was a "small mill". Many would consider a Bridgeport to be
> a small mill. I certainly consider my Harrison to be
While looking at your photos I realized that I could have almost the same
rotary table. It was recently given to me. Mine is a craftsman and is
mounted on an x-y cross slide. but some of the castings look the same to me
in the picture. Yours has a larger diameter wheel for rotary motion with 3'
On Sun, 23 Jan 2022 at 18:59, Chris Albertson wrote:
> But this is for a "*mini*-mill" you do NOT need cast iron parts.
He said it was a "small mill". Many would consider a Bridgeport to be
a small mill. I certainly consider my Harrison to be small, but it
weighs nearly a ton.
But, making
Depending on size, I’d consider some “durabar” or similar continuously cast
iron bar. I made a compound for my atlas lathe and several other items from it.
A bit hard on tools but the parts have come out great. I prefer to use a face
mill to machine the flat surfaces and then carbide tooling to
What you give a foundry is typically the part you want, a pattern. They
can advise on the limits of what they can do. For example there is a
minimum and maxim thickness and overall size.
They can also tell you how much the iron will shrink so you can adjust the
pattern
Then for you own good
On Sun, 23 Jan 2022 at 02:26, fxkl47BF--- via Emc-users
wrote:
> So from the photos in the ad what would I want to have made?
> A big rectangle?
Something stylish and in-keeping with the original, I would think.
Certainly a block thick enough to keep the lowest point of the main
casting clear
> Yes, if you are near Windy Hill, then I understand that they do a lot
> of one-offs for vehicle restorers etc.
>
> It's certainly worth considering.
OK
So from the photos in the ad what would I want to have made?
A big rectangle?
The only "true" surfaces on the back are the dovetails.
I think
On Sat, 22 Jan 2022 at 18:53, fxkl47BF--- via Emc-users
wrote:
> Now just to get it shipped to southern US :)
> Actually there is a foundry not to far from me, Windy Hill Foundry.
Yes, if you are near Windy Hill, then I understand that they do a lot
of one-offs for vehicle restorers etc.
It's
On Sat, 22 Jan 2022, andy pugh wrote:
> On Fri, 21 Jan 2022 at 16:25, fxkl47BF--- via Emc-users
> wrote:
>
>> Making a new dovetailed back plate was what I was leaning towards.
>> Any suggestion for material for this?
>> A big slab of cast iron would be nice but I imagine but too pricey.
>
>
On Fri, 21 Jan 2022 at 16:25, fxkl47BF--- via Emc-users
wrote:
> Making a new dovetailed back plate was what I was leaning towards.
> Any suggestion for material for this?
> A big slab of cast iron would be nice but I imagine but too pricey.
Well, I would 3D print a pattern and have it cast in
On Fri, 21 Jan 2022, andy pugh wrote:
> On Fri, 21 Jan 2022 at 15:15, fxkl47BF--- via Emc-users
> wrote:
>
>> I recently acquired a Palmgren 800 rotary table for a faction of this cost.
>> I would like to modify it to mount horizontally or vertically on a small
>> mill.
>> I'm open to
On Fri, 21 Jan 2022 at 15:15, fxkl47BF--- via Emc-users
wrote:
> I recently acquired a Palmgren 800 rotary table for a faction of this cost.
> I would like to modify it to mount horizontally or vertically on a small mill.
> I'm open to suggestion before I start hacking.
I think that I would
https://lostcreekmachine.com/product/lathe-attachment-rotary-indexing-8-model-800-w-vertical-feed-palmgren/
I recently acquired a Palmgren 800 rotary table for a faction of this cost.
I would like to modify it to mount horizontally or vertically on a small mill.
I'm open to suggestion before I
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