On 11/18/2013 08:09 AM, Gregg Eshelman wrote:
Could the vision system do realtime tracking and position error
correction, continuously comparing the board to an accurate image?
That is how pick-and-place machines work. They adapt to what they see.
Integrating this into the g-code backend may
Hi Florian, Andy, Gregg and Bertho!
On 11/17/2013 10:29 PM, Florian Rist wrote:
I'm not sure if it's a good idea, but I think you could do it by
modifying the kinematic module.
I once added a non-linear compensation to the trivkins kinematics to
compensate for a deformed machine frame. It
On 11/18/2013 03:43 PM, Philipp Burch wrote:
Integrating this into the g-code backend may prove to be difficult and
it is probaby easier to create a feedback-loop in the generation of the
movements/g-code.
Probably this is indeed the way to go. Creating a G-Code template for
exactly one part
On 18 November 2013 14:43, Philipp Burch p...@hb9etc.ch wrote:
In fact, this is what I've done already. I made a new kins module (named
tfkins), to which I can pass the nine elements of the transform matrix
at module load time. It is in use for the mentioned machine with the
misaligned joints.
Hi Andy!
On 11/18/2013 04:24 PM, andy pugh wrote:
On 18 November 2013 14:43, Philipp Burch p...@hb9etc.ch wrote:
In fact, this is what I've done already. I made a new kins module (named
tfkins), to which I can pass the nine elements of the transform matrix
at module load time. It is in use
On 11/17/2013 12:42 PM, Philipp Burch wrote:
Hello everyone,
for some time now, I'm using LinuxCNC to control a dispenser to treat
PCB panels (applying glue or globtop to electronic dies). Because not
all of these panels are exactly aligned in the machine, a webcam sits on
the Z joint using
Hi Bertho!
On 11/18/2013 04:04 PM, Bertho Stultiens wrote:
On 11/18/2013 03:43 PM, Philipp Burch wrote:
Integrating this into the g-code backend may prove to be difficult and
it is probaby easier to create a feedback-loop in the generation of the
movements/g-code.
Probably this is indeed the
Gregg Eshelman wrote:
'Course the easiest fix would be to get the boards made to a higher
standard and use a mechanical alignment jig so the system doesn't have
to compensate for errors.
You can't trust the outer dimensions of the board to match the traces.
They are done
on different
Why dont you consider doing what we do with the Z axis on plasma
machines. I am also looking at doing a PnP machine in the new year and
this will be my approach.
When we get a M3 in the gcode of a plasma job, we store the current Z
position and then go through a whole process of probing the
Hi Marius!
On 11/18/2013 06:35 PM, Marius Liebenberg wrote:
Why dont you consider doing what we do with the Z axis on plasma
machines. I am also looking at doing a PnP machine in the new year and
this will be my approach.
When we get a M3 in the gcode of a plasma job, we store the current Z
Hello everyone,
for some time now, I'm using LinuxCNC to control a dispenser to treat
PCB panels (applying glue or globtop to electronic dies). Because not
all of these panels are exactly aligned in the machine, a webcam sits on
the Z joint using which I can get the real positions of fiducial
Hi Philipp,
I'm not sure if it's a good idea, but I think you could do it by
modifying the kinematic module.
I once added a non-linear compensation to the trivkins kinematics to
compensate for a deformed machine frame. It worked quit well and was
easy to do, but unlike yours my compensation
On 17 November 2013 20:42, Philipp Burch p...@hb9etc.ch wrote:
Please give me some advice about what I could or should do. I have no
problems with modifying the code if necessary, but I don't really know
where a good place for this would be.
Without thinking too hard about the practicalities,
On 11/17/2013 1:42 PM, Philipp Burch wrote:
Hello everyone,
for some time now, I'm using LinuxCNC to control a dispenser to treat
PCB panels (applying glue or globtop to electronic dies). Because not
all of these panels are exactly aligned in the machine, a webcam sits on
the Z joint using
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