On 28 May 2012 20:34, Bryce Johnson sie...@gmail.com wrote:
I am using gantrykins with XYZX. I am trying to set up my limits for for
speed on my Z axis of 180ipm. In joint mode, jogging around, it seems to
obey this. When I switch to world it doesn't listen to that limit anymore
Playing
On 29 May 2012 18:10, Viesturs Lācis viesturs.la...@gmail.com wrote:
2012/5/29 andy pugh bodge...@gmail.com:
One of the Mesa card functions is a serial UART
Can You tell, what is that? Where can I read more?
http://git.linuxcnc.org/gitweb?p=hostmot2-firmware.git;a=blob;f=regmap;h
On 29 May 2012 19:45, Bryce Johnson sie...@gmail.com wrote:
That is true, but then I will lose the ability to square off my gantry when
I do homing.
You could just unpower the drives with F2 and push to end-stops.
I imagine (with no evidence) that the JA3 branch of LinuxCNC (which
attempts to
On 30 May 2012 03:42, Jon Elson el...@pico-systems.com wrote:
When the home command is given, both motors are given
identical step
rates toward the home position. When the first motor trips the home
switch, the
step pulses are interrupted to that motor.
I think that one would have to do
On 30 May 2012 10:50, Viesturs Lācis viesturs.la...@gmail.com wrote:
2012/5/30 andy pugh bodge...@gmail.com:
I think that one would have to do more than simply interrupt the
steps, as that would cause the motor to slip
And why would it do so?
Because the motor is spinning and the gantry
On 30 May 2012 11:15, Viesturs Lācis viesturs.la...@gmail.com wrote:
I am sure that it would work, if it is done the way I suggest:
1) home gantry with slave connected to a home switch on slave end;
2) when it is stopped; disconnect slave step signal and change X
home switch to one on master
On 30 May 2012 12:10, Viesturs Lācis viesturs.la...@gmail.com wrote:
The problem is that, while one stepgen would be disabled,
axis.0.pos-cmd would change its value and, when the stepgen would be
enabled again, it would jump to the axis.0.pos-cmd, which is exactly
what we do not want it to
On 30 May 2012 12:26, John Thornton bjt...@gmail.com wrote:
I just discovered last night that my neighbor is a wiz at running a
scope
This Wiz?
http://www.eeggs.com/items/11778.html
--
atp
If you can't fix it, you don't own it.
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On 30 May 2012 13:45, John Thornton bjt...@gmail.com wrote:
Before all the experiments I could get 0 to 2k with no problems and
would structure my programs around that or use the G4 pause and ramp up
to the rpm I wanted above 2k.
net motion.spindle-speed-out = limit2.in ?
--
atp
If you
On 30 May 2012 14:55, John Thornton bjt...@gmail.com wrote:
Only on a LinuxCNC machine will that work... this one is still the DX32
control.
Ah, well, in that case DX32 support is over there =
:-)
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
On 30 May 2012 17:15, Dave e...@dc9.tzo.com wrote:
Perhaps I missed something; Did you figure out if that transformer in your
machine is a Delta-Wye transformer or not?
It seems to be an autotransformer with a common centre tap (pretty
much identical to the hypothetical one I described).
On 30 May 2012 18:31, John Thornton bjt...@gmail.com wrote:
I'm guessing I don't need near that size perhaps 9-10 KVA?
There are several at $300 or so, but I got bore of squinitng at
ratings plates to find a step-up version.
There is this one, brand-new for $1000
On 30 May 2012 19:19, Viesturs Lācis viesturs.la...@gmail.com wrote:
Yes, can I ask 3D printer owners to share the practical use of those prints?
One use is for casting patterns.
The pannier mounts for my bike are cast in brass from a 3D-printed pattern.
--
atp
If you can't fix it, you don't
On 30 May 2012 19:40, dave dengv...@charter.net wrote:
http://b9creator.com/
That looks like the best technology I've seen.
To the extent that I did the price calculation into £ to see if I wanted one.
There was a guy on the IRC last night looking at a similar approach.
--
atp
If you can't
On 30 May 2012 19:53, N. Christopher Perry n_christopher_pe...@me.com wrote:
I've professionally used parts made by these processes for non-critical
brackets, rough as-cast like blanks for pneumatic manifolds
Oh, yes. At work they print all sorts of parts. Complete front grills,
fully
On 30 May 2012 20:10, Roland Jollivet roland.jolli...@gmail.com wrote:
Oh, yes. At work they print all sorts of parts.
With filament ?
No, and that is why I didn't immediately mention it. They have
laser/powder, laser/liquid and inkjet/UV machines for plastics.
However, I did see a
On 30 May 2012 20:19, John Thornton bjt...@gmail.com wrote:
In that manual after a fault I have 4 status LED's lit up. On page 6-143
the bottom 4 LED's are lit. Which one caused the fault I can't tell.
Line Supply Fault and DC Overvoltage sound possible.
The machine schematic does not show a
On 30 May 2012 20:32, Jack Coats j...@coats.org wrote:
IMHO, every technology (from clay sculpting and lost wax, pouring
babbit bearings, to 3D modeling and production of today) has its
benefits and issues.
I poured a white-metal big-end bearing for our 1916 fire engine
earlier this year.
So
On 30 May 2012 21:09, John Thornton bjt...@gmail.com wrote:
Those both show an isolating transformer with a bonded neutral on the
secondary side as well as a line filter.
Is the isolating transformer depicted a delta wye?
It's drawn as a Wye-Wye, but I don't think that is at all important
On 31 May 2012 04:41, Alex Hunt al...@ieee.org wrote:
For me personally, I see an opportunity to contribute to an emerging
field. I think it's worthwhile for that reason.
An interesting exploration of where that might lead us is the novel
Rule 34 by Charlie Stross.
(albeit a rather dystopian
On 31 May 2012 02:29, fritz fritzli...@gmail.com wrote:
As an electrician, I should now interject that a neutral should only be
bonded at the point of distribution (the breaker panel or upstream
transformer).
The point we are discussing grounding is equivalent to the transformer
you mention,
On 31 May 2012 09:40, Viesturs Lācis viesturs.la...@gmail.com wrote:
Rule 34 by Charlie Stross.
I could agree to that, except that with all the internet and other
technologies design is so much more easy to
borrow without a permission,
Pirate Hardware is pretty much the subject of the
On 31 May 2012 18:29, mjb1...@gmail.com wrote:
This all works as expected, but I've read that using G92 is not a good idea.
I wonder why?
There is the option of coding your pattern as relative moves, I suppose.
But I use G92.
--
atp
If you can't fix it, you don't own it.
On 1 June 2012 11:09, Joachim Franek joachim.fra...@pibf.de wrote:
eth tcp:
$ echo -e adc get 4 | nc 192.168.1.92 2701
227
$ echo -e channel 0 250 | nc 192.168.1.92 2701
OK
Those looks trivial to make into M100-style custom M-codes
#! bin/bash
ADC = $( echo -e adc get 4 | nc 192.168.1.92
On 1 June 2012 12:31, Ed Nisley ed.08.nis...@pobox.com wrote:
Beyond their hand-knitted appearance, the parts are entirely serviceable
I am growing to quite like the hand-knitted appearance.
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
On 1 June 2012 14:52, Joachim Franek joachim.fra...@pibf.de wrote:
halcmd setp motion.analog-in-00 $ADC
which comp to load for testing (without lcnc running)?
Is a signal possible?
You want to see if you can get values into HAL, but without starting
all of LinuxCNC?
You can probably do it
On 1 June 2012 18:39, Jason Thorsness thorsn...@gmail.com wrote:
I'm setting up a LinuxCNC system to control a Fireball v90 router. Is
there any way to know if this system from Newegg will work with LinuxCNC
without buying it first?
On 1 June 2012 21:19, Joseph Chiu joec...@joechiu.com wrote:
I'm a complete newb on this particular topic, and may not have read
all the fine details, but it seems like this might be something better
suited to photoresist/chemical etching, rather than using bits to try
to mill out the
On 1 June 2012 23:44, gene heskett ghesk...@wdtv.com wrote:
I personally have not had that great an experience at getting superglue to
let go with acetone.
I glued in my encoder disc (see earlier picture) then found I needed
it out again.
Luckily heating to 200C released it, with no damage.
On 1 June 2012 23:54, gene heskett ghesk...@wdtv.com wrote:
Not near as well as a box with a D525MW board in it, its dual core, the 510
is not.
Mine is, as far as I can see.
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
On 2 June 2012 00:33, doug metzler doug.metz...@gmail.com wrote:
If you can swing it get an SSD for your shiny new machine. I've got
two 525 machines side by side and the one with the SSD is so much
faster it's amazing.
It needn't be a big one, 8GB is plenty.
--
atp
If you can't fix it, you
On 2 June 2012 15:21, cogoman cogo...@optimum.net wrote:
While I can see the need (sometimes) for a durable metal encoder
disc, and I have cut some out of .016 copper (was on hand, and never
got tested), I wonder how useful, or how durable laser printed
transparency film would be for many
On 2 June 2012 18:28, ceen...@in-front.com wrote:
Avago AEDR-8300-1K1 quadrature encoder module.
That is the sensor I am using.
It's nice to hear that laser printed wheels cannot be seen with this type
of sensor. I'm going under the assumption that the fiberglass between the
gold traces
On 3 Jun 2012, at 18:46, Jack Coats j...@coats.org wrote:
And to some extent, MOST plastic is recyclable.
We DONT do it, typically because it is (1) inconvenient, (2) un-economical
Pretty much all my domestic plastic goes in the recycling bag. I think that is
true of most of Europe.
On 3 June 2012 16:39, gene heskett ghesk...@wdtv.com wrote:
But its duty cycle was
about 57 on to 43 off,
I don't think duty cycle is all that important, unless it drifts far
enough to break the quadrature.
If you use analogue-output sensors with comparators to square them up,
then you can
On 4 June 2012 07:26, gene heskett ghesk...@wdtv.com wrote:
It is extremely sensitive to this bit of timing variation caused
by a nominally 5 thou non concentricity in the way it is mounted (I believe
because the center hole in the disk is slightly undersized, forcing one
side of the hole to
On 17 January 2014 17:30, Dave Caroline dave.thearchiv...@gmail.com wrote:
given a mill like
http://www.lathes.co.uk/harrisonmiller/img1.gif
That being the exact machine, yes :-)
then mount the dti on the table top and measure against the front flat
below the horizontal spindle sliding the
On 17 January 2014 16:07, TJoseph Powderly tjt...@gmail.com wrote:
Nice mill! i can see gears using that action.
I need to think through the rest of your email when it isn't early
tomorrow, but yes, is makes gears a treat:
http://youtu.be/PFTHY5U8v-U
And with the vertical head is a nice stiff
On 18 January 2014 02:15, Erik Christiansen dva...@internode.on.net wrote:
If they're not perpendicular to Y, then it's hopefully not an unfounded
assumption that the Y slides are parallel to the axis of the horizontal
spindle, so that a very slightly concave disc, turned in situ (cutter
On 23 Jan 2014, at 00:12, Mark Tucker m...@rmtucker.f2s.com wrote:
I Really have a dislike for the Mouse Driven Axis Gui,
Have you looked at Touchy?
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CenturyLink Cloud: The Leader in Enterprise Cloud Services.
On 23 January 2014 15:24, Gene Heskett ghesk...@wdtv.com wrote:
Agreed and amen. Unforch, the size of ball screws it takes to do that to
my HF micromill, are made out of pure unobtainium. The smallest I can buy
on fleabay is 12mm
On 25 January 2014 00:15, Greg Bentzinger skullwo...@yahoo.com wrote:
Goal – to be able to hook into an existing working CNC machine and monitor
encoder counts, spindle functions etc. so as to be able to record and analyze
the machine performance and characteristics so that a LCNC integrator
On 28 January 2014 02:09, Stephen Dubovsky smdubov...@gmail.com wrote:
Any reason to use them over ilowpass?
No, ilowpass is specifically for the MPG use-case.
The counts inputs for wheel jogging are integer. The output of an
MPG is an integer. If the jog speed is set to 1mm per click, then
On 28 January 2014 00:34, Greg Bentzinger skullwo...@yahoo.com wrote:
An idea I had was to do something like that when trying to read high count
encoders at higher speeds. Once the velocity has passed a given threshold it
is known which direction an axis is moving so at that point is Quad
On 28 January 2014 04:16, Gregg Eshelman g_ala...@yahoo.com wrote:
Is the Tormach mill a design unique to that company or do they take some
off the shelf Chinese mill and wrap it up all fancy with added parts?
http://www.tormach.com/our_story.html
Seems to state that the parts are made in Asia
On 28 January 2014 04:13, Gregg Eshelman g_ala...@yahoo.com wrote:
A quick Google finds the exact same unit from Adorama (silver) or BH
Photo and Video (black) for $38.00. Some extra printing on it isn't
worth another $46.00
Ever since I had a quick look targetted ads from Amazon are offering
On 30 January 2014 15:50, Jim Wilkin james.a.wil...@gmail.com wrote:
I would like to make a gcode Say G133 or M64 to perform the key stroke
ctl+space to clear the MSG and DBUG messages.
I'm unable to find a pin to do this.
I think Axis has this pin
On 30 January 2014 22:23, Dave Cole linuxcncro...@gmail.com wrote:
The hint is: pot control with external 5 volt control available
However, it might still work. LinuxCNC can output speed-dir if needed.
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
On 30 January 2014 23:58, Dave Cole linuxcncro...@gmail.com wrote:
Except that if you put it on an axis and you wanted to stop, the drive
could not apply braking torque..
Surely there is no torque only when there is no position error. With
the slightest hint of overshoot the motor will be
On 31 January 2014 05:30, Dave Cole linuxcncro...@gmail.com wrote:
http://www.automationtechnologiesinc.com/wp-content/uploads/downloads/2014/01/2-Quadrant-BLDC-speed-driver-ver.-48ZWSK50-B-804-1.pdf
It _looks_ like a conventional velocity-controlled servo drive (though
I actually think it will
On 3 February 2014 00:50, a k pccncmach...@gmail.com wrote:
So, question is why not just manufacture head as a another tool to CNC mill
on the CAT 40 or CAT 50 tool holder?
It ought to work, but the typical 3D printer moves a lot faster than a
milling machine.
--
atp
If you can't fix it, you
On 3 February 2014 01:46, a k pccncmach...@gmail.com wrote:
i look from point of reality that in manufacturing sector of economy.
there are mix of jobs. mix can and will include 3D printing.
what to do in this case?
go and buy another whole machine?
I think in most cases the economics will
On 6 February 2014 11:41, bruno br...@tinkerbox.org wrote:
I am wondering if anybody has tried to configure one of these:
http://www.aliexpress.com/item/New-Wireless-USB-MPG-Pendant-Handwheel-Mach3-For-CNC-Mac-Mach-3-4-axis-Controller/1004816998.html
Yes, there is a dedicated HAL component for
On 7 February 2014 00:01, Ralph Stirling ralph.stirl...@wallawalla.edu wrote:
Is there a stripped down version of the TPEN4_5 firmware
for the Mesa 7I43-4 available, which does not generate the
complement PWM signals (/A, /B, /C) for each axis? I would
like to use those pins for Hall
On 7 February 2014 02:00, Ralph Stirling ralph.stirl...@wallawalla.edu wrote:
It would probably work for me. Is there a compiled .bit around somewhere,
Are you sure you don't already have it in /lib/firmware/hm2/7i43 ?
It appears in the LinuxCNC firmware git, so I assume it is included in
the
On 7 February 2014 03:52, Jeshua Lacock jes...@3dtopo.com wrote:
Now I think LiunuxCNC would be a good candidate for a machine like that.
The RD manager of http://www.metallisation.com/ is an old friend of mine...
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
On 7 February 2014 11:16, Mark Tucker m...@rmtucker.f2s.com wrote:
I now have the following lines in my Hal file:-
newsig test bit
sets test 1
net test iocontrol.0.emc-enable-in
Is this not enough to enable the power button
It should work.
setp iocontrol.0.emc-enable-in 1
would be
On 7 February 2014 13:57, Mark Tucker m...@rmtucker.f2s.com wrote:
I had already changed the comment to your version but i still have the
same results.
Everything works fine with axis and Gscreen but it will not work with my
custom Gui.
You probabl need to have a look at the machine status.
On 7 February 2014 15:51, tcninj...@gmail.com wrote:
I am adding a 4thaxis to my VMC. I am using a 5i20 (2)7i77(1)7i33.
Do you really mean 7i77? 7i37 seems more likely.
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
On 7 February 2014 16:49, Ralph Stirling ralph.stirl...@wallawalla.edu wrote:
With some searching, I found the build instructions (in the path
/usr/share/doc/hostmot2-firmware-7i43-4 for anyone else searching).
I was hoping to avoid doing that.
If Pete doesn't beat me to it I can probably
On 7 February 2014 18:19, Ralph Stirling ralph.stirl...@wallawalla.edu wrote:
I just realized I did successfully build a custom bitstream a couple
of years ago (ST12), and reran make in that directory, with a successful
outcome. So, with newly bolstered courage, I downloaded the current git
On 9 February 2014 11:30, bruno br...@tinkerbox.org wrote:
After configuring, I started linuxcnc (with tklinuxcnc as I have opengl
issues with axis right now), and it immediately gives me joint following
errors. No move, nothing.
It might be that Pncconf doesn't teack following error, or has
On 9 February 2014 20:52, bruno br...@tinkerbox.org wrote:
- if I stop the movement and continue in the same direction : no
problem, it will start moving (and stop) smoothly
- if I stop the movement and go jog in the opposite direction, I
immediately get a following error.
This points very
On 10 February 2014 10:14, Mark Wendt wendt.m...@gmail.com wrote:
NOTICE: Will pay 100 USD for an HP-4815A defective but
complete probe assembly.
Trying to figure out what an HP-4815A probe looks like. An Ebay search
shows me a Vector Impedance Meter. Are you looking for a probe for that
On 10 February 2014 07:35, Marcus Bowman
marcus.bow...@visible.eclipse.co.uk wrote:
Is that a 100 pulse per turn encoder? Does that give enough resolution?
I am currently running with a 16 pulse per turn encoder and it is perfectly OK.
I have a 100ppr one to fit, I anticipate having to reduce
On 10 February 2014 18:18, Russell Brown russ...@lls.lls.com wrote:
All the spindle speed stuff I've found talks about encoders and the only
likely candidate in pnc/stepconf is the Digital Input 0-4 but my
Google-fu is weak and I can't join the dots.
What hardware are you using?
--
atp
If
On 11 February 2014 08:59, Russell Brown russ...@lls.lls.com wrote:
Mesa 5I25/7I76 with 12V field power and the optical switch is an Optek
OPB830L51
The 7i76 has encoder connections provided on TB3. If you only want
spindle speed and you are not bothered for rigid tapping etc, then you
would
On 12 February 2014 05:34, Marius Liebenberg mar...@mastercut.co.za wrote:
The reason I would like to think I need it is because I test a lot of
different configs and code on the same machine (hardware ) for instance.
This means that I have to redo the INI file for every test.
A config folder
On 12 February 2014 15:39, Josiah Morgan josiahmor...@gmail.com wrote:
Andy,
the machine would be similar to defined in the schematic below:
That is a serial kinematics. Visteurs added sliding joints to
genserkins some time ago, but I am not sure if the changes got adopted
into LinuxCNC.
On 12 February 2014 16:49, Christopher Purcell
christopherpurc...@mac.com wrote:
Thank you for this suggestion. The axis-remote python script imports ngc
files in Axis and updates the display exactly as advertised when run on the
linuxcnc host, or a remote Ubuntu machine via ssh -X . Not
On 13 February 2014 06:55, Gregg Eshelman g_ala...@yahoo.com wrote:
It's looking more and more as if a BBB will be what I should use to run
my big knee mill.
Why? I can see the attraction if cheapness and portability are
important, but why not use a standard PC which has PCI sockets, SATA
On 14 February 2014 20:07, Pete Matos petefro...@gmail.com wrote:
Kawasaki is just another off branded
chinese POS as far as I have seen.
I guess they have no connection to the company that makes the
motorcycles or Boeing fuselages then.
Steelwork companies who cut a lot of sections seem to
Don't waste your money on it, the blade only spins 2800 rpms, and you have
Internet reviews are good, but there are some saying that the supplied blade is
hopeless. Might be worth trying a different blade.
--
On 16 Feb 2014, at 09:09, Marcus Bowman marcus.bow...@visible.eclipse.co.uk
wrote:
Surely it shouldn't be too hard for the electronics chappies to produce a
board which responds to a digital (command) input and outputs a programmable
voltage up to, say, 20 volts.
Have a look at the
On 19 Feb 2014, at 22:40, John Alexander Stewart ivatt...@gmail.com wrote:
Hmmm. The Centec is in the basement, and I do like it, and my wife likes
the retro feel. Hmmm
Old iron beats new iron a lot of the time.
My Harrison conversion uses custom iron castings for the motor mounts
On 22 Feb 2014, at 10:12, Sven Wesley svenne.d...@gmail.com wrote:
then it struck me, what is the best option? NPN or PNP?
I can't remember which type is preferred, but you probably want the shielded
type as they still work flush-mounted in metal.
On 20 February 2014 15:37, Rusty Russell rusty1...@gmail.com wrote:
I am rather new to this, and I don't know of anyone locally to help
(Huntsville, AL area). Using a Sain Smart B.O.B and Driver boards. All
three axes work correctly when instructed to traverse in a negative
direction,
On 17 February 2014 18:15, Charles Steinkuehler
char...@steinkuehler.net wrote:
Yeah, this is the solution I'm leaning towards. I appreciate the
concept of gantrykins, but given how LinuxCNC deals with non-trivial
kins, I don't think it's the way to go unless you really have a
non-Cartesian
On 19 February 2014 23:54, Gregg Eshelman g_ala...@yahoo.com wrote:
Has anyone done a CNC conversion on a Hardinge TM or UM?
No, but it looks like a very close relative of my Harrison, and I am
happy with that conversion.
--
atp
If you can't fix it, you don't own it.
On 24 February 2014 20:37, Viesturs Lācis viesturs.la...@gmail.com wrote:
Can anyone suggest a reasonable driver for 5 phase stepper motors?
I found these earlier today answering a forum thread:
http://www.ebay.co.uk/itm/321302774338
--
atp
If you can't fix it, you don't own it.
On 25 February 2014 11:08, Alex Joni alex.j...@robcon.ro wrote:
Since it's hardware counters on the 7i80, you can trust them pretty much.
Are we absolutely sure that the velocity/accel is being calculated
from a stable clock unaffected by any ethernet comms latency or
servo-thread jitter?
--
On 26 February 2014 06:11, a k pccncmach...@gmail.com wrote:
my question is can i use on one system 3 ac servomotors and 2 stepper
motors?
Yes, there is absolutely no reason why not.
(Your extra axes would conventionally be U and V rather than A and B)
--
atp
If you can't fix it, you don't
On 26 February 2014 02:29, Leonardo Marsaglia
leonardomarsagli...@gmail.com wrote:
libnml/buffer/physmem.cc 143: PHYSMEM_HANDLE: Can't write 11592 bytes at
offset 60 from buffer of size 10208.
See
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?UPDATING#Changes_between_2_3_x_and_2_4_x
section 1.1
It
On 26 February 2014 06:11, a k pccncmach...@gmail.com wrote:
to make cnc mill faster in rep rap deposition, head will have 2 axis.
I wonder if it would be possible to use some sort of pantograph
mechanism to achieve low-force fast-motion from a high-force
slow-motion milling machine system?
--
On 28 February 2014 02:22, Gene Heskett ghesk...@wdtv.com wrote:
Are any of you now making a postage stamp sized single opto-isolator kit?
I would be tempted to just heatshrink something like this in the
middle of a cable:
http://uk.rs-online.com/web/p/optocouplers/7344962/
I like those as they
On 28 February 2014 13:36, Michael Haberler mai...@mah.priv.at wrote:
The question, then, is how come Mach3 can have USB cabling, but LinuxCNC
can't? (see the KX* mills from Arc Eurotrade in the UK; now with USB input)
I have no idea about that API uses over USB, but I'd be curious
There is
On 28 February 2014 15:18, Mark Tucker m...@rmtucker.f2s.com wrote:
I have the following in my hal file:-
# This output is on DB25-14 and is currently tied to spindle control
(M3/M5)
net Output1 bb_gpio.p8.out-13 = halui.spindle.is-on
That's sort-of the wrong pin (it is a userspace
On 28 February 2014 14:27, John Alexander Stewart ivatt...@gmail.comwrote:
ut no support for tool offsets, functions or variables
as these are apocryphal and fell into disuse after humans left G-code
authoring to machines some time in the 80s.
I could be persuaded to have some sympathy for
On 28 February 2014 17:54, Viesturs Lācis viesturs.la...@gmail.com wrote:
I somehow feel that motion.spindle-on is the right pin for spindle control.
Or am I missing something?
No, you are quite right, and I can't type.
--
atp
If you can't fix it, you don't own it.
On 1 March 2014 05:06, Gene Heskett ghesk...@wdtv.com wrote:
Certainly no use going much faster
when its increments are in SERVO_THREAD units. At 2khz, 120hz rep rate,
the steps, before dither are about 6%.
make_pulses is in the base thread, so your steps should be a lot
smaller than 6%.
--
As a side-note to this coversation: I met a chap at a conference who had
been seeing how many PLCs he could find open on the internet and with the
default password.
He found that, for example, he could easily shut down the Niagara hydro
station, or set off the fire sprinklers in the Bodlean
On 5 March 2014 05:11, Marius Liebenberg mar...@mastercut.co.za wrote:
I disconnected the 7i77 from the drive completely. It should stand still
with no input but it oscillates and the adjustments made no impact at all.
It sounds like the simulated-tacho isn't doing a very good job.
One
On 5 March 2014 12:30, Marius Liebenberg mar...@mastercut.co.za wrote:
We did a test by putting a pot onto the input pins of the drive and it
was more than happy. No oscillations at all
I disconnected the 7i77 from the drive completely. It should stand still
with no input but it oscillates
On 5 March 2014 13:02, Marius Liebenberg mar...@mastercut.co.za wrote:
Well they describe two scenarios. One with analog input removed
(floating)
That is almost guaranteed to have horrible effects.
So, the question is: What do you get with a steady voltage from the
7i77 (no PID on the LinuxCNC
On 7 March 2014 04:35, Gene Heskett ghesk...@wdtv.com wrote:
I have minebea 17PM-M201-02 6wire HYbrid stepper motors driven by
ULN2003a 2 wire drivers unipolar.
This seems a bit puny to me, or your are geared down pretty slow, and with
the voltage limits imposed by those drivers, it is not
On 8 March 2014 00:44, Gene Heskett ghesk...@wdtv.com wrote:
http://www.robosoftsystems.co
in/roboshop/media/catalog/product/pdf/Minebea%2014PM-M201%20Unipolar%20M
otor pdf
Link still bummed here,
Using Peter Blodow's version of the link I found a truly tiny stepper.
Holding Torque Nm
On 8 March 2014 01:56, Bill billbret...@gmail.com wrote:
How do I do speed/force/power calculations?
Well, basically, you use Physics. Where do you want to start?
Binary question search 1: Do you know what torque is?
--
atp
If you can't fix it, you don't own it.
On 8 March 2014 02:27, Gene Heskett ghesk...@wdtv.com wrote:
And that 24 volts, that is 9 more than the ULN2003 will be happy at
No, the ULN is rated to 50V
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
On 10 March 2014 09:59, Gene Heskett ghesk...@wdtv.com wrote:
I see that in XL they have a 9.5mm width which would fit, but if you hunt
around, the GT2 2mm pitch stuff doesn't match at all.
You might find
http://www.hpcgears.com/n/products/1.pulleys_belts/pulleys_belts.php
useful. I don't
On 11 March 2014 00:36, Gene Heskett ghesk...@wdtv.com wrote:
No mark of that sort POM in one of the casting webs is it.
Looks like pretty fresh casting to
me. In some sort of black ABS?
It's POM :-)
http://en.wikipedia.org/wiki/Polyoxymethylene
One trade-name for POM is Delrin
--
atp
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