On Wed, 10 Jun 2009 18:06:57 -0400, you wrote:
Any case a flex of .02 would be unacceptable for us. We do not see
that kind of flex. It's really around 0.005 .
The belts are european steel cable loaded AT5 belts 3/4 wide and
driven on AL pulley's.
Ooohh look! - somebody with experience
Hello all have been reading a lot from your emailing, I going to start a
cnc router build 3 axis machine . Have lots of questions. Plan is to use dc
motors ¾ hp 1725 rpm motor with fincor 2250 dc controller. These were found
at scrap yard all work ok. Controller is using a 5k pot to control
2009/6/11 lesw...@gmail.com:
1. What board is easiest to configure fort this. I am leaning toward a
Pluto or a mesa 7i 33
Depending on how many signals you have you might not need any board at
all, which at least simplifies the setup. You may be able to drive
direct from the p-port.
2. Will
Looks like a nice clean setup!
I took a look at http://www.8020.net/ earlier in the game and decided
to weld my setup.
The difference for the large frame was like $400 to $4000 so I decided
to buy steel and skip the profiles.
But then... the machine is substantially larger than yours.
Rainer
On
Ooohh look! - somebody with experience who's actually been there and
done it too G
Hahahaha
I've give up arguing with pedantic theorists, they always know better,
I'll just get back to doing it too at about +/-0.001 ;)
Wow Steve... that's impressive.
We thought about a way to get rid of
2009/6/11 Rainer Schmidt lemonn...@gmail.com:
I've give up arguing with pedantic theorists, they always know better,
I'll just get back to doing it too at about +/-0.001 ;)
Wow Steve... that's impressive.
He might mean inches, it isn't clear.
I did once have the job of machining glass to
I am afraid that probably won't work. For a dc servo you need a drive
that is very fast reacting and operates in four quadrants (forward, fwd
brake, rev and rev brake). Your drive is designed to hold the motor at a
steady speed and will be relatively slow reacting. It also probably
operates in
On Thu, Jun 11, 2009 at 10:32:57AM +, lesw...@gmail.com wrote:
1. What board is easiest to configure fort this. I am leaning toward a
Pluto or a mesa 7i 33
I recommend Mesa over Pluto without hesitation (and I say this as the
guy who wrote the FPGA firmware and HAL driver that run the
I did once have the job of machining glass to 0.0001mm but that was
done with an Ion Mill so doesn't really count.
I default into Inches However, I am a metric guy who is constantly
annoyed by the US imperial system.
fractions of inches, 12 per foot, three per yard and 95% of the
population
And even fewer know that rods and chains are legal units of measure either.
It would be interesting to know the real reasons for the various units of
measure
as a historical tidbit. Much of that information seems to be lost to the
general population.
I grew up with imperial measures, but as
On Thu, Jun 11, 2009 at 08:18:33AM -0500, Jeff Epler wrote:
You could use an additional output pin on a second I/O connector for
direction; in HAL you would use 'abs' and 'comp' to split the PID output
into an always-positive magnitude and a direction.
SWP points out on irc that 'abs' also has
Steve Blackmore wrote:
On Wed, 10 Jun 2009 18:06:57 -0400, you wrote:
Any case a flex of .02 would be unacceptable for us. We do not see
that kind of flex. It's really around 0.005 .
The belts are european steel cable loaded AT5 belts 3/4 wide and
driven on AL pulley's.
On Jun 11, 2009, at 7:06 AM, Jack Coats wrote:
And even fewer know that rods and chains are legal units of measure
either.
Yep. 4 rods/chain, 10 chains/furlong 8 furlongs/mi.
so many paces/chain obscure unless you were chasing fires for
the USFS
during the 50's.
It would be
On Thu, 2009-06-11 at 10:32 +, lesw...@gmail.com wrote:
Hello all have been reading a lot from your emailing, I going to start a
cnc router build 3 axis machine . Have lots of questions. Plan is to use dc
motors ¾ hp 1725 rpm motor with fincor 2250 dc controller. These were found
at
On Thu, 2009-06-11 at 10:22 -0400, Douglas Pollard wrote:
... snip
I try my best to say what I think about a subject and then when someone
disagrees or gives a reason it won't work, to just keep my mouth shut.
After all I have said what I think why elaborate on it? It's hard
though. I
2009/6/11 Rainer Schmidt lemonn...@gmail.com:
I did once have the job of machining glass to 0.0001mm but that was
done with an Ion Mill so doesn't really count.
.0001mm... can't imagine how steady you have to temper everything
around that thing... How do you position that? Piezo?
It
I stopped 'translating' values early on once I moved to the states.
It's just confusing. it's easier to get used to the 'new' system.
But metric is definitely forcing it's way into the door. There are
numerous catalgues I recevied recently which have only metric torque
values and no US imperial
Rainer Schmidt wrote:
I did once have the job of machining glass to 0.0001mm but that was
done with an Ion Mill so doesn't really count.
I default into Inches However, I am a metric guy who is constantly
annoyed by the US imperial system.
fractions of inches, 12 per foot, three per
I believe that the proposed silicon sphere Avagadro/kg standard is
95mm +/- 30nm, which is a truly impressive bit of manufacturing.
http://www.acpo.csiro.au/spheres.htm
Owww I LOVE shiny stuff.. that sphere looks marvelous. I could
not take my hand of it all day 8).
And yes, that is
On Thu, 2009-06-11 at 11:42 -0400, Douglas Pollard wrote:
... snip
I am a imperial guy who is annoyed with the metric system. I have worked
in metric a lot but still don't know what a meter looks like except that
it close to a yard. To me a MM is .039 approx and a little bigger than
Expressions are described in the documentation:
http://linuxcnc.org/docs/html/gcode_overview.html#sub:Expressions
they ultimately call underlying functions in the standard C math
library.
There are no built-in constants such as 'pi' or 'e'. However, pi is
often not needed because the builtin
Kirk Wallace wrote:
Where does the math software used in g-code come from? In other words,
does anyone have links to more information on the g-code math functions?
Among other things, I would like to know if there is a pi function, or
do I need to use *3.14159265358579.? Thanks for any
On Thu, 2009-06-11 at 11:30 -0500, Jeff Epler wrote:
Expressions are described in the documentation:
http://linuxcnc.org/docs/html/gcode_overview.html#sub:Expressions
they ultimately call underlying functions in the standard C math
library.
There are no built-in constants such as 'pi' or
Rainer Schmidt wrote:
I believe that the proposed silicon sphere Avagadro/kg standard is
95mm +/- 30nm, which is a truly impressive bit of manufacturing.
http://www.acpo.csiro.au/spheres.htm
Owww I LOVE shiny stuff.. that sphere looks marvelous. I could
not take my hand of it
I just tried to single step through a g-code program, and found that my
while loop counts as one step. Is there a plan to have each run of the
loop count as one step, so there is less danger of a crash if the loop
doesn't travel as planned? Thanks.
--
Kirk Wallace
On Thu, Jun 11, 2009 at 10:42:40AM -0700, Kirk Wallace wrote:
I just tried to single step through a g-code program, and found that my
while loop counts as one step. Is there a plan to have each run of the
loop count as one step, so there is less danger of a crash if the loop
doesn't travel as
On Thu, Jun 11, 2009 at 12:24 PM, Kirk
Wallacekwall...@wallacecompany.com wrote:
On Thu, 2009-06-11 at 11:42 -0400, Douglas Pollard wrote:
... snip
I am a imperial guy who is annoyed with the metric system. I have worked
in metric a lot but still don't know what a meter looks like except that
So once you know what milli, denti, deci and kilo means... you
Sorry... there is no 'denti' lol how'd that happen???
--
Crystal Reports - New Free Runtime and 30 Day Trial
Check out the new simplified licensing
On Thu, 2009-06-11 at 12:54 -0500, Chris Radek wrote:
On Thu, Jun 11, 2009 at 10:42:40AM -0700, Kirk Wallace wrote:
I just tried to single step through a g-code program, and found that my
while loop counts as one step. Is there a plan to have each run of the
loop count as one step, so there
While reading another post I realized that EMC can handle the encoder input
by itself - and at the same time I realized that I can run one of my
machines at home as a direct encoded closed loop. After some more reading
and digging at the cnclinux wiki I think it should be possible to do it with
a
2009/6/11 Douglas Pollard dougp...@verizon.net:
We did some experiments and what we decided was
that fingers must be the most accurate thing on earth. It some point
the writing gets pretty feeble looking but is still ledgeable. One of
the engineers did a write up on this off the wall
On Thu, 2009-06-11 at 20:14 +0200, Sven Wesley wrote:
While reading another post I realized that EMC can handle the encoder input
by itself - and at the same time I realized that I can run one of my
machines at home as a direct encoded closed loop. After some more reading
and digging at the
Is this possible, what card do I need and how the heck do I configure EMC?
Regards,
Sven
http://tinyurl.com/n6ehhl
And don't forget your friends! ;)
Rainer
--
Crystal Reports - New Free Runtime and 30 Day Trial
Haha! Google is your friend!
--S
PS. Your payment is... ...soon on the way. :)
2009/6/11 Rainer Schmidt lemonn...@gmail.com
Is this possible, what card do I need and how the heck do I configure
EMC?
Regards,
Sven
http://tinyurl.com/n6ehhl
And don't forget your friends! ;)
On Thu, Jun 11, 2009 at 3:32 PM, Sven Wesleysvenne.d...@gmail.com wrote:
Haha! Google is your friend!
--S
I have the same problem with the mesa site. Just send them an email
and they get you onto the right track. I did the same. I just need
step direction generation better than with my generic
I am 100% metric and I hate it when I have to work with imperial
parts. If I have a choice I will never take the imperial parts.
Especially if it is not only about dimensions but also some heat,
power or whatever awkward unit they come up with. It is asking for
trouble with all these
Dirk wrote:
I am 100% metric and I hate it when I have to work with imperial
parts. If I have a choice I will never take the imperial parts.
Especially if it is not only about dimensions but also some heat,
power or whatever awkward unit they come up with. It is asking for
trouble
IMHO, lots of the reason for not changing is personal convenience.
People think they know what a 400HP engine in a car is like,
or what 312cu in V8 is. Most don't, but they think they do.
If it was really important to change, folks would. If it is just
to keep some politician happy, ... lets
I have a pair of Yaskawa servo motors and drivers (servopaks) to run my
lathe. They are the Speed/Torque variety and I'm driving them with a mesa
analog driver, providing +/-10v. I'm unsure of how to tune my system, as
the servopaks have a collection of tuning parameters (and auto-tune
Reducing metric to a decimal system only,is missing the point.
The metric system is BASE TEN. An important distinction from imperial.
The units of both metric and imperial could be considered arbitrary as
most seem to change with refinement and our ability to divide and measure
to greater
Kent A. Reed wrote:
Gentle persons:
The recent discussion of problems with parallel-port cards and
Pluto/Mesa hardware/software reminded me that the subject of good and
bad parallel-port cards (and their underlying chipsets) is not well
treated in the wiki.
Maybe I'm just not good
On Thu, 11 Jun 2009 07:25:33 -0400, you wrote:
Ooohh look! - somebody with experience who's actually been there and
done it too G
Hahahaha
I've give up arguing with pedantic theorists, they always know better,
I'll just get back to doing it too at about +/-0.001 ;)
Wow Steve... that's
Douglas Pollard wrote:
I can look at a cutter and tell you pretty close how many surface
ft per minute it is running. How many mm is that a minute and if I
knew , would I really know what that is? Thank God we don't have metric
time I guess it would have to be based on how many
yea, my head hurts too. ... still better than measuring mass in slugs.
But that sounds a lot of fun.
I was eating at McDonalds and gained three slugs! haha
I only like the SI system because there is less to convert.
Otherwise I care less if the base is 1 or 2.54.
There is a fine furniture
One way to get good results with belts is to strobe them at full speed
and watch the first tooth engaged by the pulley. If the tooth is trying
to climb out, it's too slack. That fault often shows after a time as a
line of wear on the pulley teeth near the crest, but it's a bit late
then.
Gentlemen,
Ubuntu 9.04 (I know - not supported but my laptop runs s much
nicer with 9.04 and other sims run)
emc2-trunk-sim
added new machine in vismach (my hydrotel cinici)
change makefile to compile 5axhydrotel.c (added lines in two places)
install 5axhydrotel.gui in
cmg...@sover.net wrote:
Reducing metric to a decimal system only,is missing the point.
The metric system is BASE TEN. An important distinction from imperial.
The units of both metric and imperial could be considered arbitrary as
most seem to change with refinement and our ability to divide
Frank Tkalcevic wrote:
I have a pair of Yaskawa servo motors and drivers (servopaks) to run my
lathe. They are the Speed/Torque variety and I'm driving them with a mesa
analog driver, providing +/-10v. I'm unsure of how to tune my system, as
the servopaks have a collection of tuning
Jon Elson wrote:
Frank Tkalcevic wrote:
I have a pair of Yaskawa servo motors and drivers (servopaks) to run my
lathe. They are the Speed/Torque variety and I'm driving them with a mesa
analog driver, providing +/-10v. I'm unsure of how to tune my system, as
the servopaks have a collection
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