On Sun, 11 Dec 2022 at 17:41, John Dammeyer wrote:
Thanks for the photos. Novel concept.
Not entirely, I think that RotarySMPs Schaublin has magnets buried in the
bed to be detected by hall sensors. (though magnets do have obvious
problems with swarf)
--
atp
"A motorcycle is a bicycle with
> From: andy pugh [mailto:bodge...@gmail.com]
>
> On Thu, 8 Dec 2022 at 20:36, John Dammeyer wrote:
>
> The X axis is interesting in how it's set up. The switches appear to be in
> > series with the NO switch on the X all the way out point and the NC switch
> > at the X all the way in point.
On Thu, 8 Dec 2022 at 20:36, John Dammeyer wrote:
The X axis is interesting in how it's set up. The switches appear to be in
> series with the NO switch on the X all the way out point and the NC switch
> at the X all the way in point. The rod moves and opens the circuit at
> either end. Very
Hi Leonardo,
>
> Just to clarify because sometimes it confuses me too. And please someone
> correct me if I'm wrong:
>
> Positive and negative soft limits are always with respect to the 0 home
> position. No matter where the home switch is located or if that 0 position
> is aligned with the
omorrow I'll add tool table support to the program and
> post some more pictures.
>
> John
>
>
> > -Original Message-
> > From: John Dammeyer [mailto:jo...@autoartisans.com]
> > Sent: December-07-22 11:32 PM
> > To: 'Enhanced Machine Controller (EMC)'
> &g
gt; -Original Message-
> From: John Dammeyer [mailto:jo...@autoartisans.com]
> Sent: December-07-22 11:32 PM
> To: 'Enhanced Machine Controller (EMC)'
> Subject: Re: [Emc-users] Home switches for LinuxCNC on a Lathe
>
> I've done a bit more work on this. I've
On Thu, 8 Dec 2022 at 07:37, John Dammeyer wrote:
> I've done a bit more work on this. I've made an assumption that the home
> switch is about 5" from the theoretical lathe centerline with a specific
> tool inserted in a fixed holder.
>
I don't think that you need to worry about the machine
It looks ok to me. But my recommendation is to forget about the distance
between the home switch and the centerline.
For example when I retrofitted the Mazak, I wired all the limits and home
switches and when I was sure the hard limits worked I started playing
around with the homing setup.
I've done a bit more work on this. I've made an assumption that the home
switch is about 5" from the theoretical lathe centerline with a specific tool
inserted in a fixed holder.
I home the cross slide setting 0.000 into the world coordinates G53 location.
Then move it -4.0" inwards which
I did something similar on a BP sized mill. Manually move x and y to
roughly center the beam of a laser diode in a 3 mm hole in a tab at one
end of the mill. Kick off homing for x and y and it will pick up the
first index on each axis. You can then move from there to where your
preferred zero
>
> +100, I have plumbing running across the bed on the right edge of the
> carriage, feeding all the stuff on the apron, and I've crushed it
> against the tailstock base several times. One of the additional bits of
> gingerbread I need to get done.
Done that to oil cans :)
El dom, 4 dic 2022 a
On 12/4/22 15:43, John Dammeyer wrote:
From: andy pugh [mailto:bodge...@gmail.com]
On Sun, 4 Dec 2022 at 00:32, John Dammeyer wrote:
The Z axis is more interesting. Before homing I imagine the tail stock
has to be loosened and moved all the way to the right as far away from the
headstock to
> From: andy pugh [mailto:bodge...@gmail.com]
> On Sun, 4 Dec 2022 at 00:32, John Dammeyer wrote:
>
> >
> > The Z axis is more interesting. Before homing I imagine the tail stock
> > has to be loosened and moved all the way to the right as far away from the
> > headstock to ensure finding a
On Sun, 4 Dec 2022 at 00:32, John Dammeyer wrote:
>
> The Z axis is more interesting. Before homing I imagine the tail stock
> has to be loosened and moved all the way to the right as far away from the
> headstock to ensure finding a home switch.
>
My lathe uses a position.txt file hack and
onardo Marsaglia [mailto:ldmarsag...@gmail.com]
> Sent: December-04-22 8:32 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Home switches for LinuxCNC on a Lathe
>
> >
> > I'm guessing you are suggesting something like what Gene was that the ho
Interesting. Don't need switches for that but do need an index on the
leadscrew.
> -Original Message-
> From: Stuart Stevenson [mailto:stus...@gmail.com]
> Sent: December-04-22 5:26 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Home switch
>
> I'm guessing you are suggesting something like what Gene was that the home
> switch isn't at the end of travel but somewhere else and once activated
> never goes inactive in that same direction. So if you start a home
> sequence and the switch is ON you know you have to go to the right until
You might try the FADAL mill method.
They use two arrows (markers). One on the moving member and one on the
unmoving member. You physically align the arrows and run the home routine.
The next found index mark on the encoder is the home position.
regards
Stuart
On Sun, Dec 4, 2022 at 1:25 AM
On 12/3/22 22:56, John Dammeyer wrote:
From what I understand you're talking about a normal parallel lathe so here
are my thoughts:
Yes. And thank you.
The Z axis is more interesting. Before homing I imagine the tail stock
has to be loosened and moved all the way to the right as far away
>
> From what I understand you're talking about a normal parallel lathe so here
> are my thoughts:
Yes. And thank you.
>
> > The Z axis is more interesting. Before homing I imagine the tail stock
> > has to be loosened and moved all the way to the right as far away from the
> > headstock to
On 12/3/22 19:27, John Dammeyer wrote:
What with playing around with my new tool setter and trying to decide where to
put it I've come up with another set of questions which I've not really asked
but now has been bugging me for a while.
Home switches for a LinuxCNC controlled lathe. For
I forgot to clarify.
Usually you don't touch off for X coordinate in G54 because your centerline
is always the center of rotation of the chuck. So basically you only use Z
axis touch off for different part lengths.
And the only time you need to find the centerline is whenever you mount a
drill
Hi John,
From what I understand you're talking about a normal parallel lathe so here
are my thoughts:
> The Z axis is more interesting. Before homing I imagine the tail stock
> has to be loosened and moved all the way to the right as far away from the
> headstock to ensure finding a home
What with playing around with my new tool setter and trying to decide where to
put it I've come up with another set of questions which I've not really asked
but now has been bugging me for a while.
Home switches for a LinuxCNC controlled lathe. For the X axis I can see this
as pretty simple
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