> > Get a pair of FRS radios with a call button. Push that and it makes a
> > noise on all other FRS radios in range on the same channel. For your
> > use you'd want an older pair with shorter range.
> That sounds like it would work, but FRS radios have been noticeably
> missing in this neck of the woods. Can I trust what I could buy on
> fleabay or amazon?
As a registered apprentice machinist, after work around computers left me,
I have found this digest an excellent place to find random tech I do not
recognize,
and then put it into Google.
FRS Radio is Family Radio Service.
The second and third hits Google replied with were:
- Best Buy, and
- Amazon.
This link says you can do both voice and data:
https://www.fcc.gov/general/family-radio-service-frs
(Both voice and data. Smells like SONET/SDH, but over radio).
Here, north of the border is slightly different, (as usual),
but, will it meet the approval of Barry Trower?
James Isaac.
Family Radio Service (FRS) | Federal Communications
Commission<https://www.fcc.gov/general/family-radio-service-frs>
www.fcc.gov
The Family Radio Service (FRS) is a private, two-way, very short-distance voice
and data communications service for facilitating family and group activities.
________________________________
From: emc-users-requ...@lists.sourceforge.net
<emc-users-requ...@lists.sourceforge.net>
Sent: Tuesday, February 21, 2017 11:30:25 AM
To: emc-users@lists.sourceforge.net
Subject: Emc-users Digest, Vol 130, Issue 81
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Today's Topics:
1. Re: OT: Two way wireless alert fobs. Re: [OT] Wife is good to
go (Gene Heskett)
2. Re: Custom home sequence (John Thornton)
3. Milling Aluminum. (Todd Zuercher)
4. Re: vfd compatibility (Gene Heskett)
5. Re: [OT] Wife is good to go (Gene Heskett)
----------------------------------------------------------------------
Message: 1
Date: Tue, 21 Feb 2017 09:16:33 -0500
From: Gene Heskett <ghesk...@shentel.net>
Subject: Re: [Emc-users] OT: Two way wireless alert fobs. Re: [OT]
Wife is good to go
To: emc-users@lists.sourceforge.net
Message-ID: <201702210916.33563.ghesk...@shentel.net>
Content-Type: Text/Plain; charset="iso-8859-1"
On Tuesday 21 February 2017 02:14:47 Gregg Eshelman wrote:
> There might be something here that could be programmed to pair up with
> unique signals and transmit when a button is pressed, while the
> receiving one triggers a loud piezo beeper.
> http://www.digikey.com/products/en/rf-if-and-rfid/rf-evaluation-and-de
>velopment-kits-boards/859
Interesting bit of kit there if I had time to add the peizo and a good
solid case. I not 95% are usb powered though. Need something that will
run on a big coin cell I think. But things are busy here today the
doorbell just rung the first time, and I have to have her to the
surgeons offices at 1P to remove the rest of the staples.
Thanks., Gregg.
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
------------------------------
Message: 2
Date: Tue, 21 Feb 2017 08:30:55 -0600
From: John Thornton <j...@gnipsel.com>
Subject: Re: [Emc-users] Custom home sequence
To: "Enhanced Machine Controller (EMC)"
<emc-users@lists.sourceforge.net>
Message-ID: <243f60b2-9370-522d-8351-2105959cb...@gnipsel.com>
Content-Type: text/plain; charset=windows-1252; format=flowed
Thanks for the explanation.
JT
On 2/20/2017 7:06 PM, Sebastian Kuzminsky wrote:
> On 02/20/2017 04:42 PM, Eric H. Johnson wrote:
>> Don't I only need to run down through the below to install rtai? Also,
>> isin't
>> sudo apt-get -y dist-upgrade
>> going to upgrade me from Xubuntu 12.04 to 14.04? I should skip that step,
>> right?
> "apt-get dist-upgrade" will upgrade all packages, but won't upgrade to a
> new distribution. For example, if you run it on Precise it'll upgrade
> all installed packages to the latest versions available on Precise, but
> will *not* upgrade from Precise to some newer version of the
> distribution. This is exactly what you want.
>
>
>> sudo apt-get update
>> sudo apt-get -y dist-upgrade
>> sudo apt-key adv --keyserver hkp://keys.gnupg.net --recv-key
>> 3cb9fd148f374fef
>> sudo add-apt-repository "deb http://linuxcnc.org/ precise base 2.7-rtai"
>> sudo apt-get update
>> sudo apt-get -y install linux-image-3.4-9-rtai-686-pae
>> rtai-modules-3.4-9-rtai-686-pae
>> sudo apt-get -y install linux-headers-3.4-9-rtai-686-pae
>> reboot and hold the left shift key down to get to the boot menu
>> select advanced options and pick the 3.4-9-rtai-686-pae kernel
>> uname -r
>> should report 3.4-9-rtai-686-pae
>> open the synaptic package manager and remove the generic image and headers
> This recipe looks right to me. It's like the official docs here:
>
> http://linuxcnc.org/docs/2.7/html/getting-started/getting-linuxcnc.html#_installing_on_ubuntu_precise
>
>
------------------------------
Message: 3
Date: Tue, 21 Feb 2017 10:34:30 -0500 (EST)
From: "Todd Zuercher" <zuerc...@embarqmail.com>
Subject: [Emc-users] Milling Aluminum.
To: "Enhanced Machine Controller (EMC)"
<emc-users@lists.sourceforge.net>
Message-ID:
<1386977179.115794703.1487691270190.javamail.r...@embarqmail.com>
Content-Type: text/plain; charset=utf-8
I am a wood worker in a large wood working CNC shop. But I need to mill some
aluminum for a project (a jig for another process in our company) but I know
next to nothing about milling such material. What I need is to cut a large grid
out of a 5ft x 10ft sheet of 1/4inch thick MIC6 AL. The machines I will have to
do this are large wood working cncs with flat vacuum tables. We normally cut
flat sheet material like MDF or plywood on a MDF fall-board (vacuum sucking
right through the fall-board (holes, no jig tape, just porous MDF) These
machines have no provisions for coolant Just compressed air blast and dust/chip
collection (big centralized dust collector system). I will obviously have to
disable the dust collection, because I'm pretty sure the local farmers who pick
up our dust won't appreciate AL shavings in their cow bedding. The machine I am
probably going to use has a 12kw 24krpm spindle. I would like to mill this with
a 1/4" 2 flute carbide end mill. Should I use an up or down s
piral cutter? What feed speed and RPM would be appropriate? What depth of cut
per pass? Do I need to arrange some sort of mist system for cooling? What to
use and how much liquid in the mist? (Don't want to cause problems with the MDF
fall-board or vacuum hold down system.) The grid is only going to be about 2
inches wide, with 12 windows in the 5x10 frame (a lot of wasted material). At
this point the plan is to set the milling up with lots of bridges to hold the
grid to the scrap then go back and trim those off with a final finish pass.
--
========================================
Todd Zuercher
mailto:zuerc...@embarqmail.com
========================================
------------------------------
Message: 4
Date: Tue, 21 Feb 2017 11:26:07 -0500
From: Gene Heskett <ghesk...@shentel.net>
Subject: Re: [Emc-users] vfd compatibility
To: emc-users@lists.sourceforge.net
Message-ID: <201702211126.07667.ghesk...@shentel.net>
Content-Type: Text/Plain; charset="iso-8859-1"
On Tuesday 21 February 2017 07:33:28 Valerio Bellizzomi wrote:
> Hello,
> the SpinX1 manual says it acts like a potentiometer, the figure on
> page C-13 of the VFD's manual shows the VIA contact to be connected to
> an external potentiometer
>
> is that the right way to connect the spinx1 ?
Yes, it has silk screened names. Its a totally isolated thing on the VFD
side. The vfd should have a common, a nominally 12 volt plus source when
measured to the common.
The fwd and rev signals are separated by the spinx1, and generally on the
VFD side respond to a closure to this common to enable it to respond to
the voltage from the "arm" of the potentiometer. On the computer side,
you will need to dedicate on pin of the BoB as an enable signal and wire
it up in the hal file.
You will need, if using the mesa cards, something that faintly resembles
this to get the LCNC speed signal hooked to the spinx1:
##############################################################
# Hook pwmgen.00 to the spindle speed and set for PDM output #
##############################################################
setp hm2_[HOSTMOT2](BOARD).0.pwmgen.00.scale
[SPINDLE_9]PWMGEN_S_SCALE
setp hm2_[HOSTMOT2](BOARD).0.pwmgen.pwm_frequency [SPINDLE_9]PWMGEN_S_FREQ
#setp hm2_[HOSTMOT2](BOARD).0.pwmgen.pwm_freq [SPINDLE_9]PWMGEN_S_FREQ
setp hm2_[HOSTMOT2](BOARD).0.pwmgen.00.output-type
[SPINDLE_9]PWMGEN_OUTPUT_TYPE
setp hm2_[HOSTMOT2](BOARD).0.pwmgen.pdm_frequency
[SPINDLE_9]PDMGEN_PDM_FREQUENCY
The data being referred in the right hand argument to needs assigned
in the [SPINDLE_9] section of your .ini file.
Now, I don't see below, what breakout you are using so I'll just copy and
paste from my setup. Keep in mind that these will NOT match yours, but
will show you approximately what you need.
First, setup the enable signal which in my case uses a gpio
pin in my 7i90 card.
First, you need to set the output pins for all axis's used as inverting and
true low,
# Turn pulses to true low, opendrain so they are closures to ground.
# stepgen 00
setp hm2_[HOSTMOT2](BOARD).0.gpio.000.invert_output 1
setp hm2_[HOSTMOT2](BOARD).0.gpio.000.is_opendrain 1
setp hm2_[HOSTMOT2](BOARD).0.gpio.001.invert_output 1
setp hm2_[HOSTMOT2](BOARD).0.gpio.001.is_opendrain 1
# stepgen 01
setp hm2_[HOSTMOT2](BOARD).0.gpio.002.invert_output 1
setp hm2_[HOSTMOT2](BOARD).0.gpio.002.is_opendrain 1
setp hm2_[HOSTMOT2](BOARD).0.gpio.003.invert_output 1
setp hm2_[HOSTMOT2](BOARD).0.gpio.003.is_opendrain 1
# stepgen 03
setp hm2_[HOSTMOT2](BOARD).0.gpio.018.invert_output 1
setp hm2_[HOSTMOT2](BOARD).0.gpio.018.is_opendrain 1
setp hm2_[HOSTMOT2](BOARD).0.gpio.019.invert_output 1
setp hm2_[HOSTMOT2](BOARD).0.gpio.019.is_opendrain 1
# the above gpio numbers correspond to the outputs of the canned
code in the FPGA's installed firmware for the stepgens I use, and
the PDM signal from the pwmgen module in the cards firmware.
And the reason I keep calling it PDM is that is a ditherless
method of getting quite smooth speed signals from a basically
digital circuit. That is done as the modules are enabled in
the .ini file by a line grouping like this:
[SPINDLE_9]
# 16.6 is close to 100 revs per click in low belt position
PWMGEN_S_SCALE = 16.6
# make it run in PDM mode, is self smoothing then
PWMGEN_S_FREQ = 1
PWMGEN_OUTPUT_TYPE = 3
PDMGEN_PDM_FREQUENCY = 10000
# the SCALE above sets it to run the spindle at 100 rpm per
click on the + button, when the backgear is not engaged and
the belt is in the lowest speed grooves of the pulleys. All of
these settings are of course your personal choices. PDM_FREQUENCY
is a balance between update rate and quantization of the speed change.
A lower frequency is higher resolution but it should be fast enough
so the motor speed doesn't ripple. 10000 is a good choice for me
with my fake vfd..
sets emcmot.00.enable FALSE
net emcmot.00.enable <= joint.0.amp-enable-out
net emcmot.00.enable => hm2_[HOSTMOT2](BOARD).0.stepgen.03.enable
Thats not all of that stuff, but you'll get the idea.
A gpio pin is an input unless told otherwise, and all signals
are closures to ground, with 5 volts fed to the + terminals on
the axis motor drivers, with your step/dirs connected to the - terminal
on the drivers control plug.
#################################################################################
# Setup vfd drive enable yadda yadda, building down from top down forward first
#
# The SpinX1 only needs pwm and dir I thought, but needs an ena(ble) too.
#################################################################################
# start with SpinX1's dir which has to be converted to an output of the correct
polarity
setp hm2_[HOSTMOT2](BOARD).0.gpio.071.is_output 1
setp hm2_[HOSTMOT2](BOARD).0.gpio.071.invert_output 1
setp hm2_[HOSTMOT2](BOARD).0.gpio.071.is_opendrain 1
# this is the green jumper wire from the SpinX1's FWD, to 7i90-p3-47
net reverse_vfd <= motion.spindle-reverse =>
hm2_[HOSTMOT2](BOARD).0.gpio.071.out
# and the spinX1 does need an enable, so setup gpio.070 for that
setp hm2_[HOSTMOT2](BOARD).0.gpio.070.is_output 1
setp hm2_[HOSTMOT2](BOARD).0.gpio.070.invert_output 1
setp hm2_[HOSTMOT2](BOARD).0.gpio.070.is_opendrain 1
# net line moved to be combined with enable_vfd below
net enable_vfd <= motion.spindle-on
net enable_vfd => hm2_[HOSTMOT2](BOARD).0.pwmgen.00.enable
net enable_vfd => hm2_[HOSTMOT2](BOARD).0.gpio.070.out
The above demonstrates then when a "net" signal is defined, the next
argument on that line becomes the source for that signal. The next
two lines show where that signal is to be sent.
IF they are in the sequence shown, the => and <= gismo's are optional.
Currently, do NOT put a comment as a trailing #comment, put it on its
own line.
###########################################################
# make the vfd's pdm drive unidirectional, fwd/rev handles that #
# but the SpinX1 needs a DIR, which is on P1-43
###########################################################
net spindle-vel-cmd-rps <= motion.spindle-speed-out-rps
net spindle-vel-cmd-rps => spindle-abs.in
# this come out on P1-41 as the pulse Duration Modulated signal to the SpinX1,
red jumper
net spindle-unispeed <= spindle-abs.out =>
hm2_[HOSTMOT2](BOARD).0.pwmgen.00.value
This is, without a doubt, incomplete, but with the halmeters help, you should
see whats missing. Yell if the water is still rising. :)
>
> On Thu, 2017-02-16 at 08:56 -0800, Kirk Wallace wrote:
> > On 02/16/2017 03:37 AM, Valerio Bellizzomi wrote:
> > ... snip
> >
> > > the VFD is a Toshiba VFS15-4037PL-W, it has a Forward input, a
> > > Reverse input, and a current speed input (and alternatively a
> > > 0-10V input). There isn't an enable input. I do not need the
> > > reverse so it should be two parallel pins, one for forward and one
> > > for speed.
> >
> > ... snip
> >
> > I found a manual here:
> > https://inverterdrive.com/file/Toshiba-VFS15-User-Manual
> >
> > I usually first check the overview graphic which seems to be on page
> > B-4. I see the F terminal which could just be shorted to common to
> > activate it. The speed potentiometer is shown too. PWM could
> > simulate that. I also see theRS485 connector. I did a search in the
> > document for "485" and found page C-4, which shows some control
> > options; terminal (relay), keypad, RS485 (Modbus?), CAN (cool),
> > communication(what the heck?). Just below are some speed setting
> > options. This should be a nice VFD.
> >
> > A little farther down from B-4 are the I/O circuit options. Looking
> > at the F entry, it basically says shorting the F terminal to CC will
> > start forward rotation. You can use a parallel port pin to control a
> > small solid state relay or opto-isolator. It just needs to tolerate
> > 24 Volts on the output.
> >
> > It looks like the VIA (voltage, input, analog?) is a speed input.
> > The same parallel port pin to solid state relay or opto-isolator as
> > F above may be used, except it only needs 10 Volt tolerence.
> > Terminal PP is the 10 Volt source (CC common isn't needed, most
> > likely). The signal from the parallel port pin should use PWM or
> > PDM.
> >
> > If you have a BOB (Break Out Board), post a make/model and/or
> > picture or other information. It may be useful for the above
> > connections.
> >
> > It looks like page D-3 is a good place to start VFD programing.
> >
> > The above may be wrong or missing some information, so study the
> > manual and decide for yourself what to do. I would get a mains input
> > noise filter right of the bat, so you don't have to chase down weird
> > issues while trying to learn how to use your VFD. Hmm... It looks
> > like your VFD already has a built-in noise filter.
>
> ----------------------------------------------------------------------
>-------- Check out the vibrant tech community on one of the world's
> most engaging tech sites, SlashDot.org! http://sdm.link/slashdot
> _______________________________________________
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Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
------------------------------
Message: 5
Date: Tue, 21 Feb 2017 11:30:18 -0500
From: Gene Heskett <ghesk...@shentel.net>
Subject: Re: [Emc-users] [OT] Wife is good to go
To: emc-users@lists.sourceforge.net
Message-ID: <201702211130.18157.ghesk...@shentel.net>
Content-Type: Text/Plain; charset="iso-8859-1"
On Tuesday 21 February 2017 08:34:28 Dave Cole wrote:
> Just swap the batteries and see what happens.
> And since she is near a charger a lot of the time..... ;-)
>
> Dave
I thought of that, but haven't done it. Mine was charged at 11:25 just
now, so its unplugged at 11:26, I'll see how long it runs with the
hearing aid earpiece driver disabled.
Thanks Dave.
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
------------------------------
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