On Fri, 11 Sep 2020 at 16:28, dave engvall wrote:
> I've always done this the hard way by going
> back to the CAM. My brain is pretty well fried but I think a bit of
> matrix algebra would do this for you.
There is no need for complex maths. You can mirror a part simply by
changing the sign of
/an origin.
It makes the math in the wizard much simpler, especially when you are doing
something like rotating a rectangle.
Alan
From: Jon Elson
Subject: Re: [Emc-users] cnc axis "Touch Off"
Date: September 10, 2020 at 9:04:23 PM CDT
To: "Enhanced Machine Controller (EMC)"
is called so that the wizard works with respect to the/an
> origin. It makes the math in the wizard much simpler, especially when you are
> doing something like rotating a rectangle.
>
> Alan
>
> > From: Jon Elson
> > Subject: Re: [Emc-users] cnc axis "Touch Of
well, I am comfortable with matrix algebra, but it's probably easier,
more practical, to just do that part in freecad or so, and use a
separate g code file for that.
I was just wondering what these different coordinate systems are, what
they are used for.
On 9/11/20 9:26 AM, dave engvall
IIRC some controls have a switch to do this. Also I think you can flip
the sign of one axis and get a mirror image but the sense of the cut
(climb/conventional) also flips so unless your machine is pretty tight
dimensions may also shift. I've always done this the hard way by going
back to the
Hello Andy,
That is interesting, I should learn more about these coordinate
systems. From a math/geometry perspective there nothing that could
keep you from
translating, rotating (and even more weird transformations) a geometry
into a custom one. However in an implementation, of course,
when you are doing
something like rotating a rectangle.
Alan
> From: Jon Elson
> Subject: Re: [Emc-users] cnc axis "Touch Off"
> Date: September 10, 2020 at 9:04:23 PM CDT
> To: "Enhanced Machine Controller (EMC)"
>
>
> On 09/10/2020 08:28 PM, R
On Fri, 11 Sep 2020 at 05:22, R C wrote:
> It sounds like the coordinate systems in essence are the same, they
> just have a different origin, for all the other parts, it's just the
> same thing, just translated and/or rotated for another part?
Yes, and there is also only rotation about the
ah ok,
It sounds like the coordinate systems in essence are the same, they
just have a different origin, for all the other parts, it's just the
same thing, just translated and/or rotated for another part?
Ron
On 9/10/20 8:04 PM, Jon Elson wrote:
On 09/10/2020 08:28 PM, R C wrote:
I
On 09/10/2020 08:28 PM, R C wrote:
I figured out the "touch off", and that it 'works' the
same as homing, functionally.
I wondered what all the different coordinate systems are
for, their differnces.
(I know what a coordinat system is, mathematician here.)
This allows you to set up an
I figured out the "touch off", and that it 'works' the same as homing,
functionally.
I wondered what all the different coordinate systems are for, their
differnces.
(I know what a coordinat system is, mathematician here.)
Ron
On 9/10/20 6:53 PM, Jon Elson wrote:
On 09/10/2020 05:59
On 09/10/2020 05:59 PM, R C wrote:
I was just playing with it a bit,
I have the idea, that , like homing is done per axis,
"touching Off" is done per axis too?
Yes, you should be able to select the axis that is to have
its offset changed and then enter what that coordinate
should be set to.
On 9/10/20 5:49 PM, Gene Heskett wrote:
On Thursday 10 September 2020 18:50:03 jrmitchellj wrote:
On a Mill setup, touch-off only affects the Z axis. You will need to
find your X0, and Y0 positions. I use the end key to bring up the
dialog and set the offset.
--J. Ray Mitchell Jr.
On Thu, 10 Sep 2020 at 22:51, R C wrote:
> this is probably a rookie question, but sometime when I do a "Touch
> Off", the Z-position indeed becomes 0, but the X and Y are not. Then
> in teh axis program, it will still go to the "first" spot where it needs
> to start milling
There are two
On Thursday 10 September 2020 18:59:09 R C wrote:
> I was just playing with it a bit,
>
>
> I have the idea, that , like homing is done per axis, "touching Off"
> is done per axis too?
>
yes, and has forever here.
>
> thanks,
>
>
> Ron
>
> On 9/10/20 4:50 PM, jrmitchellj wrote:
> > On a Mill
On Thursday 10 September 2020 18:50:03 jrmitchellj wrote:
> On a Mill setup, touch-off only affects the Z axis. You will need to
> find your X0, and Y0 positions. I use the end key to bring up the
> dialog and set the offset.
>
> --J. Ray Mitchell Jr.
> jrmitche...@gmail.com
>
It works for all
yup, that's why I noticed too. I thought "touch off" would be more
like "this is (0, 0, 0)" and just hit that button once...
I guess I got lucky a few times.
On 9/10/20 5:28 PM, Dave Matthews wrote:
That is how I do it. There are three radio buttons, one for each axis. It
defaults to
That is how I do it. There are three radio buttons, one for each axis. It
defaults to the last axis moved which is usually z.
Dave
On Thu, Sep 10, 2020, 19:01 R C wrote:
> I was just playing with it a bit,
>
>
> I have the idea, that , like homing is done per axis, "touching Off" is
> done
I was just playing with it a bit,
I have the idea, that , like homing is done per axis, "touching Off" is
done per axis too?
thanks,
Ron
On 9/10/20 4:50 PM, jrmitchellj wrote:
On a Mill setup, touch-off only affects the Z axis. You will need to find
your X0, and Y0 positions. I
On a Mill setup, touch-off only affects the Z axis. You will need to find
your X0, and Y0 positions. I use the end key to bring up the dialog and
set the offset.
--J. Ray Mitchell Jr.
jrmitche...@gmail.com
"Good enough is the enemy of excellence"author unknown
On Thu, Sep 10, 2020 at 2:51
Hello,
this is probably a rookie question, but sometime when I do a "Touch
Off", the Z-position indeed becomes 0, but the X and Y are not. Then
in teh axis program, it will still go to the "first" spot where it needs
to start milling, and in the drawing it fllows the correct
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