Am 06.01.23 um 11:52 schrieb andy pugh:
On Fri, 6 Jan 2023 at 09:52, wrote:
Because the nurbs code results in straight lines
and arcs it must be possible to add
cutter radius compensation.
Indeed. I wonder why it was excluded?
A other method would be to calculate an offset nurbs.
See for
Am 20.01.23 um 15:08 schrieb andy pugh:
On Fri, 20 Jan 2023 at 13:10, wrote:
I hope to have this ready now.
I think it would be useful to rebase the patch, at the moment your repo says:
"This branch is 9 commits ahead, 916 commits behind LinuxCNC:master."
"git pull --rebase"
If the
On Fri, 6 Jan 2023 at 09:52, wrote:
> I found values with negative exponent, but not with positive.
> How to proceed?
> - 1/CART_FUZZ (#define CART_FUZZ (1.0e-8))
> - a new constant in posemath.h
> - a define in emccanon.c
Probably 1/CART_FUZZ. The compiler will replace that with a constant
First thanks Andy.
Am 06.01.23 um 02:21 schrieb andy pugh:
1. "|| beta > 1e10"
There was a small error in the function biarc in
file: src/emc/task/emccanon.cc.
I added the condition "beta > 1e10" because without
the file "Ruota_dentata #1=1.ngc" is not working.
The value of 1E10 is only
On Wed, 28 Dec 2022 at 16:44, wrote:
> I have integrated the code from Lo Valvo and Drago
> and extended it to planes yz and zx.
Great, thanks.
> 1. "|| beta > 1e10"
> There was a small error in the function biarc in
> file: src/emc/task/emccanon.cc.
> I added the condition "beta > 1e10"
I have integrated the code from Lo Valvo and Drago
and extended it to planes yz and zx.
Please see the repository
https://github.com/jf/linuxcnc
Branch: nurbs_G5_G6_xyz.
Some notes:
1. "|| beta > 1e10"
There was a small error in the function biarc in
file: src/emc/task/emccanon.cc.
I
ons 2022-12-21 klockan 19:59 + skrev andy pugh:
> On Wed, 21 Dec 2022 at 19:54, Nicklas SB Karlsson wrote:
>
> > Specify three points in 2D or 3D space: start, centre and end
> > points as
> > you suggest I think is a good idea that will work for an arc.
>
> That defines two possible arcs
On Wed, 21 Dec 2022 at 20:09, Nicklas SB Karlsson wrote:
> A floating point number have the same number significant digits
> wherever the decimal point is put so maybe not a big problem.
In principle, not, but in practice, it's a lot of zeros to type and
most CAM tools don't go to that many
ons 2022-12-21 klockan 19:59 + skrev andy pugh:
> On Wed, 21 Dec 2022 at 19:54, Nicklas SB Karlsson wrote:
>
> > Specify three points in 2D or 3D space: start, centre and end
> > points as
> > you suggest I think is a good idea that will work for an arc.
>
> That defines two possible arcs
On Wed, 21 Dec 2022 at 19:54, Nicklas SB Karlsson wrote:
> Specify three points in 2D or 3D space: start, centre and end points as
> you suggest I think is a good idea that will work for an arc.
That defines two possible arcs (simplistically, the short one and the long one)
> If I think
ons 2022-12-21 klockan 13:23 + skrev andy pugh:
> On Wed, 21 Dec 2022 at 12:12, Stuart Stevenson
> wrote:
> >
> > A point and a vector fully describe a plane in 3D space.
>
> Indeed, and you could certainly have a command to set a generic
> plane.
> But you don't need the point. G17 and
On the Fanuc 15MB control G68/G69 allowed the rotation of the XY/YZ/ZX
planes. G68 would rotate one plane. Another G68 line would then rotate a
second plane combining the two rotations. Tool motion would then be
coordinated to the new plane locations. On the bridge mill with the BC head
you would
On Tue, 20 Dec 2022 at 09:47, Joachim Franek wrote:
> BTW:
> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?NURBS
> Here is a link to a pdf from Leto: but I do only
> get a pdf with 0 file length.
I got the original papers from Ernesto Lo Valvo and have uploaded them
to that page.
In the email that he
On Wed, 21 Dec 2022 at 12:12, Stuart Stevenson wrote:
>
> A point and a vector fully describe a plane in 3D space.
Indeed, and you could certainly have a command to set a generic plane.
But you don't need the point. G17 and friends do not define a plane,
they define a continuum of planes (for
ons 2022-12-21 klockan 06:08 -0600 skrev Stuart Stevenson:
> A point and a vector fully describe a plane in 3D space.
Yes there that's another option.
If three points are given to define an arc in a three dimensional space
it will be in a "flat" plane.
>
> On Wed, Dec 21, 2022 at 2:40 AM
A point and a vector fully describe a plane in 3D space.
On Wed, Dec 21, 2022 at 2:40 AM Nicklas SB Karlsson wrote:
> ons 2022-12-21 klockan 00:47 + skrev andy pugh:
> > On Tue, 20 Dec 2022 at 21:27, Nicklas SB Karlsson wrote:
> >
> > > Three points with three in the (x,y,z) space will
ons 2022-12-21 klockan 00:47 + skrev andy pugh:
> On Tue, 20 Dec 2022 at 21:27, Nicklas SB Karlsson wrote:
>
> > Three points with three in the (x,y,z) space will define an arc in
> > three dimensions. Then there is three degrees of freedom for the
> > tool
> > direction at each point or two
On Tue, 20 Dec 2022 at 21:27, Nicklas SB Karlsson wrote:
> Three points with three in the (x,y,z) space will define an arc in
> three dimensions. Then there is three degrees of freedom for the tool
> direction at each point or two for a rotating/"round" tool if I think
> correct.
We have been
mån 2022-12-19 klockan 13:04 + skrev andy pugh:
> On Mon, 19 Dec 2022 at 11:27, wrote:
>
> > I do not know what seicanon.cc is for!
>
> saicanon is related to the "stand alone interpreter" which I think
> is,
> in turn, related to the G-code preview and (maybe) some of the tests.
>
On Tue, 20 Dec 2022 at 09:47, Joachim Franek wrote:
> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?NURBS
> Here is a link to a pdf from Leto: but I do only
> get a pdf with 0 file length.
That's because the file has zero length...
-rw-r--r-- 1 emcboard pg167418 21037 Jan 28 2013 'Latching Shift
To function ARC_FEED(...) in emc/task/emccanon.cc ( about line 1540):
there is 2 times a special treatment of plane XY:
1.if( canon.activePlane == CANON_PLANE_XY && canon.motionMode ==
CANON_CONTINUOUS)
2.if(canon.xy_rotation && canon.activePlane != CANON_PLANE_XY) {
I expect, that all
On Mon, 19 Dec 2022 at 11:27, wrote:
> I do not know what seicanon.cc is for!
saicanon is related to the "stand alone interpreter" which I think is,
in turn, related to the G-code preview and (maybe) some of the tests.
https://linuxcnc.org/docs/stable/html/code/rs274.html
(The manpage above
Am 19.12.22 um 02:23 schrieb andy pugh:
On Thu, 15 Dec 2022 at 19:04, wrote:
Hi,
here is my little christmas present for you:
nurbs in xy, yz and zx plane is working for me.
I suspect that NURBS isn't used very much (none of the CAM packages
know how to use it) so the risk of putting
On Thu, 15 Dec 2022 at 19:04, wrote:
>
> Hi,
> here is my little christmas present for you:
> nurbs in xy, yz and zx plane is working for me.
I suspect that NURBS isn't used very much (none of the CAM packages
know how to use it) so the risk of putting this straight into master
is small.
It
Hi,
here is my little christmas present for you:
nurbs in xy, yz and zx plane is working for me.
Please see the repository
https://github.com/jf/linuxcnc
branch: nurbs-xyz.
Maybe someone can test it.
The code needs little polishing.
BTW: Is someone using astyle for formatting?
On 9/26/22 11:26, l...@pibf.de wrote:
I can report little progress:
preview in Axis is working, see attached picture.
For those interested:
I have cloned the repository to
https://github.com/jf/linuxcnc
and created a branch nurbs-xyz.
There is a new subdirectory
nc_files/nurbs/
with the
I can report little progress:
preview in Axis is working, see attached picture.
For those interested:
I have cloned the repository to
https://github.com/jf/linuxcnc
and created a branch nurbs-xyz.
There is a new subdirectory
nc_files/nurbs/
with the gcode files.
-Original Message-
From: l...@pibf.de [mailto:l...@pibf.de]
Sent: Monday, August 15, 2022 8:09 AM
To: emc-developers@lists.sourceforge.net
Subject: Re: [Emc-developers] NURBS in XY, XZ(lathe) and YZ plane
The next decision is about the code to change.
I would be glad to read your opinions.
My
Am 14.08.22 um 14:08 schrieb andy pugh:
On Sun, 14 Aug 2022 at 11:33, wrote:
2. in src/emc/rs274ngc/gcodemodule.cc which is used for example by AXIS.
There are two parallel interpreters, in effect. One is used to control
the machine, the other to create a graphical preview.
It appears
On Mon, 15 Aug 2022 at 16:13, wrote:
> My suggestion - the easy way - is to keep the code for nurbs calculations.
> Only change the wording to nubs_plane with coordinates nurbs_X and nurbs_Y
> to be clear this is still a 2d nurbs (and not machine axes).
When I was a physics student I seem to
The next decision is about the code to change.
I would be glad to read your opinions.
My suggestion - the easy way - is to keep the code for nurbs calculations.
Only change the wording to nubs_plane with coordinates nurbs_X and nurbs_Y
to be clear this is still a 2d nurbs (and not machine
Am 14.08.2022 um 20:16 schrieb Nicklas SB Karlsson:
Do not feel there is a need for more gun barrels or increased accuracy
in world, there are already more than needed in the world.
;) I am confident there are also applications for those who just build
some sensors with an interest to control
Do not feel there is a need for more gun barrels or increased accuracy
in world, there are already more than needed in the world.
Den 2022-08-14 kl. 18:24, skrev gene heskett:
On 8/14/22 08:04, andy pugh wrote:
On Sun, 14 Aug 2022 at 09:56, wrote:
Hello,
it is worth to spend my time to do
On 8/14/22 08:04, andy pugh wrote:
On Sun, 14 Aug 2022 at 09:56, wrote:
Hello,
it is worth to spend my time to do this?
I looked to the code and it seems doable.
I think that it is a pity that it only works in XY. However I have
never used the feature and don't know how often it is used. I
On Sun, 14 Aug 2022 at 16:35, wrote:
> How to initialize canon?
Sorry, at this point you know as much as I do.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta
Am 14.08.22 um 14:08 schrieb andy pugh:
On Sun, 14 Aug 2022 at 11:33, wrote:
2. in src/emc/rs274ngc/gcodemodule.cc which is used for example by AXIS.
There are two parallel interpreters, in effect. One is used to control
the machine, the other to create a graphical preview.
It appears
On Sun, 14 Aug 2022 at 11:33, wrote:
> 2. in src/emc/rs274ngc/gcodemodule.cc which is used for example by AXIS.
There are two parallel interpreters, in effect. One is used to control
the machine, the other to create a graphical preview.
It appears that the way to determine the active plane in
On Sun, 14 Aug 2022 at 09:56, wrote:
>
> Hello,
>
> it is worth to spend my time to do this?
> I looked to the code and it seems doable.
I think that it is a pity that it only works in XY. However I have
never used the feature and don't know how often it is used. I don't
believe that any CAM
On 8/14/22 06:32, l...@pibf.de wrote:
Excuse me, I have messed up the other thread.
Thanks Gene for your encouragement.
There are 2 function NURBS_FEED.
1. in src/emc/task/emccanon.cc, which is used for machine movements.
2. in src/emc/rs274ngc/gcodemodule.cc which is used for example by
Excuse me, I have messed up the other thread.
Thanks Gene for your encouragement.
There are 2 function NURBS_FEED.
1. in src/emc/task/emccanon.cc, which is used for machine movements.
2. in src/emc/rs274ngc/gcodemodule.cc which is used for example by AXIS.
In src/emc/rs274ngc/gcodemodule.cc
On 8/14/22 04:56, l...@pibf.de wrote:
Hello,
it is worth to spend my time to do this?
I looked to the code and it seems doable.
Joachim
I would thank you, it is something I'd like my lathes to do.
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Hello,
it is worth to spend my time to do this?
I looked to the code and it seems doable.
Joachim
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