app that does nothing but display the position and interface to the VFD?
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interlocked with the drive
power so the drive is turned off well before the connector breaks output
contact.
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On 01/16/2015 08:52 AM, Kirk Wallace wrote:
On 01/15/2015 11:32 PM, Marius Liebenberg wrote:
... snip
I did break one drive when I unplugged the motor while the drive was
still under power.
There was some chatter on the CNCzone/Tormach forum recently about
unplugging a fourth axis
directly from
China suppliers.
Dave
When I ordered my drive I knew how long it might take to ship, but 2.5
weeks is still a long time to wait.
On 1/15/2015 9:40 PM, Kirk Wallace wrote:
I just received one of these (2.5 weeks from China) as a possible
replacement for my unipolar driver
thing that comes to mind. I looks like there is no overload
protection, such as a power input fuse or breaker. It would seem prudent
to add a fuse.
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On 01/09/2015 09:56 AM, andy pugh wrote:
On 9 January 2015 at 17:48, Kirk Wallace kwall...@wallacecompany.com wrote:
Oops, I missed the exclusive nature of the link. I really wished that
people would _not_ use free services.
The pictures are on Picasa, but Google auto-redirect to Google
to
the user or those around them.
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=108164504656404380542
https://plus.google.com/photos/108164504656404380542/albums/5747722155741347649/6047572913175439346?pid=6047572913175439346oid=108164504656404380542
I saw this while I was there:
https://plus.google.com/photos/108164504656404380542/albums/5951817748876519665
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http
no
opinion.
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://www.wallacecompany.com/machine_shop/wash_motor/wash_motor_side.jpg
http://www.wallacecompany.com/machine_shop/wash_motor/wash_motor_plate.jpg
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http://www.wallacecompany.com/E45
/index.php/english/forum/31-cad-cam/1650-gcodetools-inkscapes-cam-extension
See links under Using LinuxCNC:
http://wiki.linuxcnc.org/cgi-bin/wiki.pl
http://hackaday.com/2013/10/12/cnc-software-toolchain-using-only-open-source-software-2/
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http
0x4000 // always logged
#define EMC_DEBUG_ALL 0x7FFF /* it's an int for %i to work
*/
// debug prefix flags
#define LOG_TIME 1
#define LOG_PROCESSID 2
#define LOG_FILENAME 4 // and line
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are generally not very good
for machine vision.
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and a jumper on
serial port pin 2 and 3. Set minicom for software handshake. Then
anything you type should echo back to your terminal display.
That's what comes to mind so far. You probably need to run down the
permission issue to run the component as a normal user.
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of the registers listed.
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is of the Glade layout, so looks a little funky)
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? It has
been a while since I have played with this, so I'm a bit rusty.
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from
and torque control -- but, what current? Peak
current seems important to prevent blowing out components. Average
current is needed for motor load and driver over-heating. I guess I'll
find out as I go.
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in.) on a side. The
inner radial clearances should be between 0.380 mm (0.0149 in.) and
0.190 mm (0.0075 in.).
...
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.
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On 11/28/2014 07:59 AM, andy pugh wrote:
On 28 November 2014 at 15:50, Kirk Wallace kwall...@wallacecompany.com
wrote:
In my opinion, grease should not be a first choice. Oil can lubricate
just as well or better, and carries away heat and dirt
Oil will fall out. These bearings are mounted
Here is the start of my notes on playing with PWM and FETS.
http://www.wallacecompany.com/machine_shop/LinuxCNC/pwm_fet/pwm_fet.html
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with a decent electronic
parts bin can touch some important bits of LinuxCNC in short order.
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On 11/28/2014 09:29 AM, Kirk Wallace wrote:
Here is the start of my notes on playing with PWM and FETS.
http://www.wallacecompany.com/machine_shop/LinuxCNC/pwm_fet/pwm_fet.html
I posted my second circuit at the link above.
JK, I used your comment about using the gate resistor to adjust
hoping to try running the
motor at full voltage, 90 Volts, but I'll need to order new FETS and
diodes for that.
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is the nature of the signal? (driver and input)
What is the nature of the wire? (impedance, configuration, termination,
filtering)
What is the nature of the noise environment? (suppression, shielding)
What method best addresses the above? (which industrial standard)
--
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doesn't
get oiled.
I added a pump:
http://www.wallacecompany.com/cnc_lathe/00053-1a.jpg
http://www.wallacecompany.com/cnc_lathe/00054-1a.jpg
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?
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On 11/26/2014 08:51 AM, andy pugh wrote:
On 26 November 2014 at 16:38, Kirk Wallace kwall...@wallacecompany.com
wrote:
is there an option that tells bldc to output the pwm
directly?
No.
I did consider adding a base-thread function that did phase-locked PWM
but decided
http://www.nasa.gov/content/international-space-station-s-3-d-printer/#.VHYN4dewfiE
What, no bust of Yoda?
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to watching your progress.
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:
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Bridges_-_Half%2C_Full%2C_Three_Phase
which has been added to, but could use some updating.
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. Maybe there are too many options.
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Andy, it has been a few years since this page changed:
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?ResolverToQuadratureConverter
How well is this working? I'm looking at getting some BLDC motors with
resolvers for commutation.
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http
On 11/18/2014 08:43 AM, andy pugh wrote:
On 18 November 2014 16:31, Kirk Wallace kwall...@wallacecompany.com wrote:
Andy, it has been a few years since this page changed:
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?ResolverToQuadratureConverter
How well is this working? I'm looking at getting
up. I need to rig up a board on my bench and scope out
what's going on.
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fields.
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unloaded
in case you have trouble putting things back the way they where.
Hopefully, someone that knows better will correct any above misinformation.
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/sep01/sep01.html
http://www.electrical4u.com/induction-motor-braking/
There should be a version for router motors.
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This looks interesting, but I have no idea how well these dimmable T8
LEDs work.
http://www.ebay.com/itm/121227773225
another option is to use a bunch of E26 screw base bulbs which are
getting fairly cheap these days.
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http
with.
Just a thought.
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than close by on
the ground.
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://www.digikey.com/product-detail/en/2SB1383/2SB1383-ND/3929429
(hFE = 2000, one high side, one low side)
Although, I really don't want to put much more effort into these old
drives. Plus the circuit traces are pulling up when I remove the old parts.
--
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On 10/31/2014 09:53 AM, Kirk Wallace wrote:
In case anyone might be interested, I mentioned on IRC some issues I had
with a blown out unipolar drive:
BTW, the tool arm also stopped working. I thought the 4-way valve here
was the problem:
http://www.wallacecompany.com/machine_shop/Shizuoka
old.
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https
http://theroadtothehorizon.net/photo/Google%20-%20don%27t%20be%20evil.jpg
On 10/30/2014 09:24 AM, Dave Cole wrote:
Google is like the Borg you will be assimilated resistance is
futile. ;-)
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changing slots changes where PCI assigns where the card's base
and extended address space?
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Operation
not permitted
... snip
A wild guess might be that the PPMC board is not powered up or not
connected? There is a Pico diagnostic program you might try.
http://pico-systems.com/codes/univpwmdiags.tgz
--
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used for your entry might shed light on your loop.
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On 10/25/2014 08:33 PM, Kirk Wallace wrote:
On 10/25/2014 08:14 PM, Kirk Wallace wrote:
On 10/25/2014 07:12 PM, TJoseph Powderly wrote:
On 10/25/2014 09:05 PM, Ed wrote:
On 10/25/2014 07:29 PM, Kirk Wallace wrote:
... snip[
Thank you Ed and Tom. I'll post pictures and dimensions tomorrow
On 10/26/2014 11:04 AM, Kirk Wallace wrote:
On 10/25/2014 08:33 PM, Kirk Wallace wrote:
On 10/25/2014 08:14 PM, Kirk Wallace wrote:
On 10/25/2014 07:12 PM, TJoseph Powderly wrote:
On 10/25/2014 09:05 PM, Ed wrote:
On 10/25/2014 07:29 PM, Kirk Wallace wrote:
... snip[
Thank you Ed and Tom
haven't been able to find the u-ring seals that are on the ends of
the shuttle. Like this:
http://www.theoringstore.com/index.php?main_page=indexcPath=172_997_1011
Has anyone worked on these and knows which part to get?
Thank you.
--
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http
On 10/25/2014 07:12 PM, TJoseph Powderly wrote:
On 10/25/2014 09:05 PM, Ed wrote:
On 10/25/2014 07:29 PM, Kirk Wallace wrote:
My Shizuoka mill has a pneumatic valve block with a Versa valve (for the
tool arm in/out) that looks just like this one:
http://www.ebay.com/itm/161456516453
On 10/25/2014 08:14 PM, Kirk Wallace wrote:
On 10/25/2014 07:12 PM, TJoseph Powderly wrote:
On 10/25/2014 09:05 PM, Ed wrote:
On 10/25/2014 07:29 PM, Kirk Wallace wrote:
My Shizuoka mill has a pneumatic valve block with a Versa valve (for the
tool arm in/out) that looks just like this one
, servo motors are available with magnetic release
brakes built in. The Tormach mills use them on the Z axis. If the power
goes out, e-stop trips, or watchdog barks, the machine stops instantly.
The magnetic engage clutches are handy too.
--
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On 10/22/2014 08:24 AM, Charles Buckley wrote:
... snip
You want people to adopt LinuxCNC? You have to tie it to a new machine that
is cutting edge, then bill it as open source. Right now, Instructables is
... snip
Hows about:
http://www.tormach.com/product_lathe.html
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http
In case anyone might be interested, I posted my latest manual mill DRO
updates:
http://www.wallacecompany.com/machine_shop/LinuxCNC/gvcpDRO/
http://www.wallacecompany.com/machine_shop/LinuxCNC/
The -2 version has a velocity display feature.
--
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http://www.wallacecompany.com
/itm/251681642709
which would also work well when you upgrade from a manual DRO to CNC.
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to John's page a lot:
http://gnipsel.com/linuxcnc/gui/index.html
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On 10/22/2014 01:58 PM, Kirk Wallace wrote:
On 10/22/2014 01:02 PM, Stephen Dubovsky wrote:
Looks really nice Kirk. I have a manual lathe that I have scales for but
haven't bought a display device yet.
Thank you. I'm still trying to figure our how to set background colors
to make the axis
done back in the day, which is
much easier now. This set up would be how Helical couplers are slotted:
http://en.wikipedia.org/wiki/Coupling#Beam
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On 10/21/2014 08:52 AM, Kirk Wallace wrote:
On 10/20/2014 02:47 PM, andy pugh wrote:
In the end, I deicded to do it like this:
http://youtu.be/86MN3CN7Aiw
The attached is my next guess on how to machine the clutch with a
horizontal mill. The rotary axis would need to be geared
, and the
subject matter of my posts.
I'm assuming that he is using spring-loaded test probes because he is
making a test fixture, or something similar where the connection is
temporary.
And so, together, we offer a greater wealth of options.
Erik
--
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http
/Screenshot_pogo1.png
I recall some connectors used to connect board to board, where header
pins from the bottom board pass through the bottom of the top board and
into a connector on top. Does anyone have a link to such connectors?
--
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http
. The example pin
beds I have found on the Net have used vero(?) boards which have .1
spacing, but the spacing I need is 5mm and .15 and I don't have time to
make up a custom PC board. The sockets seem to have a ring and step I
can use instead of fixing with solder.
--
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with an end mill or
slitting saw. Visual aid attached.
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On 10/09/2014 06:14 PM, Gene Heskett wrote:
... snip
old biker with many sets of worn out Dunlaps on my resume, I was hoping to
see the Ner-a-Car in action.
Cheers, Gene Heskett
https://www.youtube.com/watch?v=mpHFVzwwZWs
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http
file I'm working on. I also get strange sticky scrolling every
once in a while. I'd prefer to not use a wheel mouse.
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familiar with use a few turns of very thick wire and
would be a bear to wind mechanically. There may be a way to wind a coil
off the core then install it to the stator leg, but this not ideal.
Maybe form C shapes and weld them into a coil after they are installed?
--
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http
://www.youtube.com/watch?v=l-MNy6-QanI
If you post the information on the motor's data plate, you might get a
reply on whether there is something available to drive it.
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, and one
wouldn't have something valuable such as a wrist wired to the probes.
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On 09/17/2014 11:22 AM, John Kasunich wrote:
Kirk Wallace wrote:
An oscilloscope app for Google Glass might save on squinting, and one
wouldn't have something valuable such as a wrist wired to the probes.
Not my valuable wrist, just my worthless head :-)
Oops, I meant an editorial one's
://www.komaprecision.com/2013%20Literature/Rotary%20Tables/Tsudakoma%20Rotary%20Tables%2013,0%20LoRez%20Save.pdf
Posting pictures of the insides of the unit might help too.
--
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http://www.nasa.gov/mission_pages/station/research/news/3D_in_space/#.VAdqQfldU1I
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I forwarded this in case someone might be interested.
Original Message
Subject: Modbus description language and compiler
Date: Fri, 12 Sep 2014 16:01:30 -0400
From: James Nutaro nut...@gmail.com
Reply-To: libmod...@googlegroups.com
To: libmod...@googlegroups.com
CC:
grinder, so I may need to send the grinding out a fair distance. My
guess is shipping would cost too much.
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http://www.nasa.gov/sites/default/files/14-179_rs_25_installation_0.jpg
http://www.nasa.gov/press/2014/july/nasa-begins-engine-test-project-for-space-launch-system-rocket/
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One more:
http://members.shaw.ca/SWSTUFF/spindle-encoder.html
http://members.shaw.ca/SWSTUFF/index.htm
On 07/15/2014 07:19 AM, Kirk Wallace wrote:
On 07/15/2014 06:44 AM, Marius Liebenberg wrote:
On 2014-07-15 14:00, andy pugh wrote:
On 15 July 2014 10:44, Marius Liebenberg mar
://directory.fsf.org/wiki/Ghex
gHex should be in your software Synaptic package manager. This might
give you an idea on what is inside the file.
--
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upon to initiate an E-stop
if an unsafe condition occurs. A watchdog signal may be used to monitor
these smart bits and initiate an E-stop if any smart bits become dumb.
There may be other important E-stop issues I have not covered here.
--
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adapters are
common. LinuxCNC supports Modbus in ClassicLadder or with Python and
LibModbus. Modbus is designed for machine control and is common on VFDs
and with microcontrollers. Search the LinuxCNC wiki for Modbus for more
information.
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Just in case someone on the right coast needs a shaper:
http://www.ebay.com/itm/321419575694
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before the blade will
get any serious testing.
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On 05/31/2014 09:55 AM, Kirk Wallace wrote:
I haven't bought bandsaw blades for many years so I don't have a known
good source. Does anyone have a favorite source for 93 x .032 x 3/4
steel cutting blades?
Thanks for the replies Pete, Dave, and John. I'm going to give this
blade a try:
http
is any good soon enough. I only
ordered one in a medium pitch. I'm hoping it doesn't take too many
blades to find one I like.
--
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I haven't bought bandsaw blades for many years so I don't have a known
good source. Does anyone have a favorite source for 93 x .032 x 3/4
steel cutting blades?
--
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--
Time is money. Stop wasting it! Get
. The source code looks like this:
depth = full_dia_depth + cut_increment * pow(++pass, 1.0/degression);
Making J as large as you can really reduces the number of passes.
Changing the value of I should not have any affect on the number of passes.
--
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in aluminum. One needs to take off enough
material to get the tool below the surface. This should give five to
three passes before any spring passes which I would not bother doing.
Otherwise, I'd use a tool post grinder with many passes.
--
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may get in the way more than plunge-and-go.
Channeling before threading, so any material left will only have valid
helix, seems better. I would like to know if there is any situation
where ramping would be better than channeling or plunging.
--
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Celeron PCs
that work well in the 2ns area. Even the SFF PCs usually have a few
slots for expansion. They are not too old so they can boot and install
from a USB thumb drive. A 64GB SSD cuts the boot time in half.
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Latency-Test
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and Feeler have three point mounts. The bed is a
closed box made specifically to be rigid enough to handle all cutting
loads with ease. These will cut to tenths all day long.
http://www.practicalmachinist.com/vb/bridgeport-hardinge-mills-lathes/3-point-lathe-mounting-question-116076/
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On 05/07/2014 08:13 PM, Kirk Wallace wrote:
On 05/07/2014 03:56 PM, Steve Blackmore wrote:
As for three bolt mounting - I can't think of any quality lathe with
less than 4
None of the Myford, Dean Smith Grace, Colchester, Boxford, Harrison,
and the many Swiss lathes I worked on had three
lathes have three point mounts, but the beds
are designed to have enough rigidity on their own. I would tend to mount
and align a cheap lathe bed to a steel tube, or concrete or stone block,
then three point the mount.
--
Kirk Wallace
http://www.wallacecompany.com/machine_shop/
http
that it will normally
see -- with the motor connected to the lead screw, table and such.
--
Kirk Wallace
http://www.wallacecompany.com/machine_shop/
http://www.wallacecompany.com/E45/
--
Accelerate Dev Cycles with Automated Cross
to the specified max. of 80 Volts if
you haven't done so. It also looks like there is a serial port on the
drive which you might monitor with LinuxCNC or with the tuning software
that comes with the drive.
--
Kirk Wallace
http://www.wallacecompany.com/machine_shop/
http://www.wallacecompany.com
, Kirk Wallace wrote:
While we are at it. I need to cut these down to make battery chargers
for my tractors.
http://www.ebay.com/itm/200834656851
Just picking them up can break these, let alone trying to cut them. Has
anyone found a way to cut these? Laser cutting is probably the best
method
if there
is precedent for this. Currently, I have to enter this data into a
g-code generator each time I run the app. For lathe, everything I need
is available from the tool table.
--
Kirk Wallace
http://www.wallacecompany.com/machine_shop/
http://www.wallacecompany.com/E45
#_tool_table_format
Thinking about it some more, I think I could just steal the lathe front,
back and orientation cells for corner radius, v angle and full depth
diameter. I'll have to give it try.
--
Kirk Wallace
http://www.wallacecompany.com/machine_shop/
http://www.wallacecompany.com/E45
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