Thank you regards
Andrew
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On Monday 18 August 2014 04:57:58 Andrew McCallum did opine
And Gene did reply:
Thank you regards
Andrew
Sent from my iPad
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Hi,
sorry, this is somewhat off-topic, as it does not (only) concern
LinuxCNC but Sinumerik controls, however I think you guys will know and
I hope you don't mind me asking.
I'm trying to figure out the proper way to handle workpiece offsets in
5axis machining, especially on Sinumerik 840D
I've had a problem proposed to me. Any ideas or suggestions?
A series of randomly sized wooden pieces (uniform thickness) placed randomly on
a slow conveyor. Each piece has 1 to 4 small pockets milled in them. I would
like to automate a method of blowing out the dust left from milling the
On 18 August 2014 18:46, Todd Zuercher
zuerc...@embarqmail.com wrote:
How hard would it be to detect the location of these pockets, position an
air nozzle over the pocket and clean them with a short air blast as they are
carried down the conveyor.
I think that would
I imagine you can get co-ordinates from something like http://opencv.org/
and then move the nozzle/s as required
Dave Caroline
On 18/08/2014, Todd Zuercher
zuerc...@embarqmail.com wrote:
I've had a problem proposed to me. Any ideas or suggestions?
A series of randomly
2014-08-18 20:56 GMT+03:00 andy pugh bodge...@gmail.com:
On 18 August 2014 18:46, Todd Zuercher
zuerc...@embarqmail.com wrote:
How hard would it be to detect the location of these pockets, position an
air nozzle over the pocket and clean them with a short air blast as
Vision systems can be very light sensitive, which is sometimes not
immediately obvious. Cast a shadow across the parts and the vision
system may get lost. Find someone who does a lot of vision and you
will find that they know a lot about lighting and light sheilding.
Vision works best in
We use cameras to check things on production lines, I'd assume from that
experience you would need to traverse the conveyer and when a target is
found blast some air. Is this just to save some air vs an air curtain?
JT
On 8/18/2014 12:46 PM, Todd Zuercher wrote:
I've had a problem proposed to
If you know the outer shapes you can then know where the pockets are,
another way if they are likely to be low contrast/full of dust.
Dave Caroline
On 18/08/2014, Viesturs Lācis viesturs.la...@gmail.com wrote:
2014-08-18 20:56 GMT+03:00 andy pugh bodge...@gmail.com:
On 18 August 2014 18:46,
2014-08-18 20:59 GMT+03:00 Dave Caroline dave.thearchiv...@gmail.com:
I imagine you can get co-ordinates from something like http://opencv.org/
and then move the nozzle/s as required
Last year I had an intern that created a script, that used opencv to
recognize a part and return its
maybe vacuum is better
( dont blow chips into already cleaned pocket)
maybe mechanical fingers could detect pockets simply
imagine a row across conveyer of pivoting fingers drooping down to belt
as wood passes it would raise lever finger to hi posn
if it returned NOT to conveyer level , you got a
a vacuum would be far better and safer , instead of blowing potential chips
into someones eyes etc
no matter how good you are at trying to keep small debris in check ,
particles always get through .
viesturs
let me know what you need from opencv into linuxcnc etc
Dave
On 18 August 2014 19:16,
Why bother with detecting the pockets. Use a curtain of nozzles that
will blow in various directions. Maybe repeated once or twice and then
blow the lot clean.
A number of swirling nozzle will also work.
On 2014-08-18 19:46, Todd Zuercher wrote:
I've had a problem proposed to me. Any ideas or
Tip them pocket down and vibrate them, get the dust to fall out (use a
roller conveyor)
Dave
On 18/08/2014, Marius Liebenberg mar...@mastercut.co.za wrote:
Why bother with detecting the pockets. Use a curtain of nozzles that
will blow in various directions. Maybe repeated once or twice and
Do all your programming in reference to the XYZ0 you choose to make setup
and multiple ops the easiest possible. Then use G54-G59 to set the zero
coordinate offset from machine zero.
This will work for 3, 4 and 5 axis programming.
I don't know the mechanical configuration of your machine but
2014-08-18 21:42 GMT+03:00 David Armstrong cncbas...@gmail.com:
let me know what you need from opencv into linuxcnc etc
Nothing specific, only a concept - I was thinking about automation of
put a workpiece in cnc lathe, take finished part out of cnc lathe and
repeat process. If there is a box
Will you be willing to share the script as it could be useful for a pick
and place machine that I am looking at doing.
There are a number of people that has done just that what you are
talking about for pick and place machines but they are mostly not open
source sadly.
On 2014-08-18 21:35,
2014-08-18 22:47 GMT+03:00 Marius Liebenberg mar...@mastercut.co.za:
Will you be willing to share the script as it could be useful for a pick
and place machine that I am looking at doing.
I have 2 files - one is .cpp file (no idea, what it is), the other
seems to be the script itself. AFAIK
Sure I will look at them to see what we can make of it.
On 2014-08-18 22:04, Viesturs Lācis wrote:
2014-08-18 22:47 GMT+03:00 Marius Liebenberg mar...@mastercut.co.za:
Will you be willing to share the script as it could be useful for a pick
and place machine that I am looking at doing.
I have
What is a good or practical top speed for a small lathe spindle? I can
over drive my spindle to get good high end but I would like to stay with
what is a good norm.
--
Regards /Groete
Marius D. Liebenberg
+27 82 698 3251
+27 12 743 6064
QQ 1767394877
On 8/18/2014 11:46 AM, Todd Zuercher wrote:
I've had a problem proposed to me. Any ideas or suggestions?
A series of randomly sized wooden pieces (uniform thickness) placed randomly
on a slow conveyor. Each piece has 1 to 4 small pockets milled in them. I
would like to automate a method of
On 8/18/2014 12:05 PM, Dave Cole wrote:
Vision systems can be very light sensitive, which is sometimes not
immediately obvious. Cast a shadow across the parts and the vision
system may get lost. Find someone who does a lot of vision and you
will find that they know a lot about lighting and
I think the machine could be moved via a command to MDI or something
similar.
Here you go.. the python interface showing the MDI interface..
http://linuxcnc.org/docs/html/common/python-interface.html
There are probably a number of ways to do this.
I don't think you need to mess around with the
On 18 August 2014 20:50, Dave Caroline dave.thearchiv...@gmail.com wrote:
Tip them pocket down and vibrate them, get the dust to fall out (use a
roller conveyor)
Dave
Best advise !!
But if you really want to use a camera, you'll have to contend with purging
a pocket around the lens to keep
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