On 02/28/2018 10:55 AM, Jon Elson wrote:
I know a number of you guys have Hardinge HNC and CHNC machines
retrofitted with LinuxCNC.
I have a friend/customer local to me who needs a CNC lathe that can
crank out aluminum parts 1.5" in diameter. There's a CHNC-I
relatively local to us that is g
On 11/30/2017 11:37 AM, andy pugh wrote:
On 30 November 2017 at 17:20, Ed wrote:
Is there a VFD that works with a PM motor rather than a squirrel cage type?
Need spindle orientation also, the motor has an encoder.
You need a servo motor driver, really. I would imagine that this is a
also, the motor has an encoder.
Ed.
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Emc-
ood tap. Moly Dee is my favorite lube
for cut thread and forming thread taps, lard works in a pinch for cut
threads.
Hardware store taps? Do not apply! Buy a good tap even if you only
plan to use it once.
Ed.
--
C
On 10/31/2017 11:38 AM, andy pugh wrote:
On 31 October 2017 at 15:45, Ed wrote:
Does it hurt anything to remove the rotor from the field housing to replace
the bearings?
It might, depending on the servo. The issue is that the rotor is
sometimes magnetised in-situ and the stator acts as a
I have a noisy bearing on the Z axis motor of my CHNC Hardinge that
needs to be replaced.
Does it hurt anything to remove the rotor from the field housing to
replace the bearings?
Steppers are damaged by improper disassembly, what about DC brush servos ?
TIA Ed
the impact.
Search for Detroit Hardness Tester, it uses a bouncing ball with a
calibrated tube. You simply drop the ball in the tube and watch the
height of the rebound.
Make one yourself with bearing balls and tubing if you have some
accurate samples.
Ed
. Am I right that 15 microns translates
to .00038 inches? Ifso that is not to bad if dealing with gummy 1018
material.
Ed.
--
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h the same flex guide. Make sure your motor
leads are twisted to cut the noise.
Ed.
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feed rate then
feed out at lower rate. The courser (in)feed lines seem to break up any
chatter that can develop as you feed back out at the lower rate.
Ed.
--
Check out the vibrant tech community on one of the wo
tion is: What machinery do you have to work on this?
Vertical mill?
Boring head?
What size head?
Lathe with four jaw?
Etc.
Ed.
--
Check out the vibrant tech commun
four jaw
chuck. You initially have to indicate the bore to the chuck to get
proper height and X position and check face of the bearing for runout.
Between that and a Z axis DRO it makes chambering about a 20 minute job.
Ed
idea?
I don't know this application but in all the cases I have seen the
grease is a light #1 NLGI grease for bank systems. The usual grease gun
grease is #2. #2 is used for bearings and farm machinery, #1 is used a
lot in reciprocating applications, like presses and such. DO NOT SUBSTITUTE.
thread.
Ed.
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On 04/20/2017 11:37 AM, Gene Heskett wrote:
>
> It has been quite a few years and they are still "temporarily" working.
> You forgot the quotes around temporarily, Kirk. I fixed it for you. ;-)
>
> Cheers, Gene Heskett
Its only temporary, ....
On 03/08/2017 07:39 AM, Ken Strauss wrote:
> Does the adjustment on a Bahco still turn the opposite way from most other
> brands?
>
OHHH! Does that mean it for a Lefty?
I saw one like that a few years ago, made in Ukr
ction for
signals. What are you planning to drive it with? (Interface hardware)
Ed.
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> no way to jog down.
>
> How difficult would it be to do that?
>
> Danny
>
>
Use the switch as a limit then select "limit as home". A little offset
from there and you will not hit it when jogging after home.
Ed.
---
t; just look them up (at least not easily). What are the motor dimensions,
> V/rpm constant, max amps, encoder counts... all the important stuff you need
> to know about a servo before you buy it?
>
If he can fin
; was ever over torqued.
>
>
>
If your threads are dry they will gall. Any light lube will help. Any
competent shop should be able to clean them up.
They will need a good carbide threading tool.
Ed.
--
Check out
On 02/02/2017 09:42 AM, dragon wrote:
> Ed Fanta does rigid tapping on his CHNC. I don't believe that he has a
> breaking resistor on the VFD even. IIRC I watched the output of the
> SPINx1 and it just goes from a + voltage to a - voltage and does not
> "stop" he does ha
bay servo motors, and good
inexpensive servo drives does any one even use stepper motors?
Dampers, resonance issues, lost steps, stalls, only 30 IPM? Why?
Gene, don't stay on the dark side! Go to servo's a
write the numbers on
those spots on the chuck. If it does not remount to those indications
then it is the work to move it or shim it until it does.
Ed.
--
Check out the v
ck will then
> repeat that position pretty accurately for the same diameter.
>
> Jon
>
>
One thing that helps consistency is to try different pinions to get
accurate chucking then always use the same pinion for that size.
Ed.
On 11/17/2016 01:11 AM, hubert wrote:
> I have a step and Direction driven AC Servo spindle with encoder output
> that is supposedly capable of rigid tapping. I want to tap some 1/4
> inch aluminum with M3x0.5 spiral flute HSS tap. Initially I have the
> spindle speed set at 150 rpm.
Start about
ts gives the cable a good workout.
Ed.
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Em
Looking for a very flexible cable for an encoder, 3 pair will work would
like 6 pair. The cable is in a cable track and gets flexed each time
the Z moves. Only need about 15 feet but will take more for spares.
Thanks,Ed
What power is available? 240V 3 phase I hope?
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On 09/28/2016 05:36 PM, Charles Steinkuehler wrote:
> On 8/22/2016 11:55 AM, Sebastian Kuzminsky wrote:
>> On 08/22/2016 10:35 AM, Ed wrote:
>>> I haven't been paying attention to this. Is this the correct date?
>> The plan is:
>>
>> Monday October 17 t
On 06/15/2016 02:13 PM, Stuart Stevenson wrote:
> This will most probably be an October 7th, 8th and 9th event.
> In all honesty anyone can come at any time.
>
I haven't been paying attention to this. Is this the cor
h a smith wrench. That is a whole science in and of itself.
>
> So, some recommendations, particularly for just the maximum machining
> ductility, and how best to measure that temp on the cheap, would be much
> appreciated.
Heat with a torch to IHC tractor red and cool slowly, if you d
hought about a small arc welder as a PS? I used an old stick
welder as a PS for chrome plating way back when.
Ed.
--
What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
patterns at an inte
er
capacity with the Fanuc control.
>
>
> My thanks to the person who put the question "Does this colour on my lathe,
> make my tailstock look fat?".
> It gave a friendly professor the giggles. This prof did the manufacturing of
> a satellite chassis, through all de
myself I can get to something within an
days drive and on a weekend. Witchita is at the end of a 12 hr drive.
The joys of being your own boss and the only employee. I am a
fanboi/user/student more than an integrator or developer.
Ed.
-
ily and the fresh
> oil covering all the interior surfaces would be a deterrent. But I don't have
> work lined up such that there are (paying) jobs to be run.
>
Try copper or stainless steel kitchen pot scrubbers stu
apping the side of the
shank sharply with a small hammer. Rude and crude and unrefined but it
works.
Ed.
--
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instan
y steep ramp and you get better results.
Ed.
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Monitor end-to-end web transacti
.
For a sliding block breech with auto eject and auto close you can get up
near 30 rounds per minute
Ed.
--
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App in
ometimes used the Welin style interrupted thread with the Elswick
cone for a quicker action. It is easy to fire 15 rounds per minute.
> That was the impression I came away with. But explain the De Bange or
> Weli
would be the handiest
tool to cut the grooves.
Ed.
--
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
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ve been afraid to just go for it, but wondering
> what a real machinist would do? I am not one. :-)
>
You can run a tap quite fast in brass as long as the tap is "like new"
sharp, a slightly dull tap that will cut steel will bind in the copper
alloys and sometimes wedge very ti
isolation.
I cut off the plug on a power strip and wired that directly to the
control transformer.
Ed.
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have a 500VA control transformer to drop 240V to 120V for
the computer and the monitor. That way I do not have to worry if I have
pick the wild phase or not.
Ed.
--
On 11/03/2015 10:16 AM, Karlsson & Wang wrote:
>>
>> I have been running a 480 V motor at 240 V for a while now on a manual
>> mill. At half the voltage you get one fourth the power.
>>
>> Ed.
> A half voltage and same speed you get half power. At half spee
h that. (It cost less than 1/3 the price of the original.)
>
I have been running a 480 V motor at 240 V for a while now on a manual
mill. At half the voltage you get one fourth the power.
Ed.
--
__
rd plunge cut at the beginning) sounds like one
> of those things that will be perfectly OK most of the time, but then
> won't be.
>
Every Morse taper milling machine I have seen has a draw bar or a keeper
key to hold the arbor.
My HBM has a
order to get around 3000rpm. I have tested the motor at that
> and it seems happy in the short term.
> My question is, what is the max that I can over clock the VFD / motor?
>
>
I have been running a 1725 RPM at 60 HZ motor at 150Hz on my CHNC
Hardinge. Sometimes
out normal.
> This seems rather less than I would have guessed.
>
> Does anyone else have any feel for this. I have been designing around
> 2kN, and I know that many CNC lathes have multi-kW Z servos.
>
Many CNC lathes push large twist drills and spade drills through some
tough m
On 07/02/2015 03:28 AM, Marius Liebenberg wrote:
> I am following the proposed methods for setting up the tool table as
> John had described. The thing that confuses me at the moment is this.
> I home the machine, cancell G92 offsets and then load the tool 1 with T1
> M6. Now I touch off X and Z fo
Did anyone explain this properly? If not I can give it a go.
Ed.
On 05/22/2015 11:20 AM, Marius Liebenberg wrote:
> So finally I can no longer ignore the tool table functions of LCNC and I
> have never had the prevaledge to understand them well.
>
> Please assist me in get
achine relative (G54, G55, etc) at what ever point
you want to work from. If you leave a vise on it most times and use a
corner to work from then write down that G53 number and go there after
homing on startup.
Ed
--
D
s
To make Linuxcnc more usable by the industrial crowd it needs G70,71,and
72 implemented for the lathe. When I get a complex shape with a lot of
metal to be removed I usually go to my Fanuc 6T controlled machine. I
prefer Linuxcnc for most things, esp tool setups and part touchoff.
Ed.
>
yer of friction material, a
sprocket that is piloted on the hub, another friction plate, and a
spring loaded plate to clamp it all together. Common on USA style PTO's.
Ed.
--
Dive into the World of Parallel Programmin
gt; It looks like a sale-or-return 7i49 or Pico converter would be worth
> trying to negotiate. They have to be cheaper to ship than the motor +
> resolver.
>
If anyone is interested I have an unopened Pico Systems resolver
converter and a couple of used resolvers. The project didn't hap
w to get it out.
>
The bearing race on the shaft is probably best removed by carefully
grinding through the race in a couple of spots and cracking it with a
chisel.
Ed.
--
Download BIRT iHub F-Type - The Free Ent
you pause, move tool, do whatever, and restart cut, The caveat is that
the tool has to be moved back to the EXACT position that you moved it
from at pause.
Ed.
--
Download BIRT iHub F-Type - The Free Enterprise-G
these and knows which part to get?
>
> Thank you.
>
>
When you say shuttle do you mean piston of the cylinder?
I deal a lot in seals of that type, get me:
Seal OD (bore of
I am looking at setting up a 4 axis mill with spindle forward and
reverse, coolant control, 3 axis home and limits, and maybe a probe input.
It looks like a 7I37COM and 2 7I29's will work well for interface and
power. Will I need the extra I/O ? It doesn't look like it but??
if the amps are set just right,
the slag will peel up behind the arc into a nice curl. This works best
in rotary build up work.
Ed.
--
Want fast and easy access to all the code in your enterprise? Index and
search up
e ideas
>
> aram
>
>
What you will find is after the first layer or possibly two there will
be a thin "slag" layer on top of the beads. This layer will have to be
chipped off to keep the arc continuous, ot
On 07/25/2014 01:56 AM, Steve Blackmore wrote:
big snip
> Anyway - I'll leave you Linux guys to prevaricate and dither and get
> on with actually making things. Steve Blackmore --
Sorry Steve, I've been making things since the BDI 2.X days with my
mill. What are you wa
e. Spent quite a while figuring that out, but in my case it
was an acrylic jacket:
http://softsolder.com/2009/01/28/usb-disconnects-nobody-moves-nobody-gets-hurt/
Now, if that's not what dmesg says, I'd still suspect EMI...
--
identifier in what you have written. This seems more likely:
hm2_5i25.0.gpio.032.in
However, that's for my system, not yours, and you must modify the
*examples* to match your actual hardware.
--
Ed
softsolder.com
---
s that control the motion on all three axes:
http://softsolder.com/2010/05/12/sherline-cnc-mill-defining-home-switches/
That configuration worked back in the 2.4 days and has continued to work
fine ever since, so it should get you reasonably close to your goal.
Hope that helps ...
--
rrow, but
losing 10% of her body weight didn't slow her down at all.
As for you: every morning, the Devil wakes up, checks his status board,
and says "Whew, Gene's still alive!"
Now, get back to making chips...
--
Ed
softsolder.com
-
not even a tester. Just a user of the
software.
Thanks guys.
Ed.
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table is properly square. I guess
> that the critical thing it needs to be square to is the Y slides.
>
Vertical or horizontal spindle? Usually use a test indicator in the T
slot and traverse the table.
Ed.
-
On 01/13/2014 11:07 AM, Jon Elson wrote:
> On 01/02/2014 03:44 PM, Ed wrote:
>
> Ed,
>
> Any further progress on this problem? I'd like to help!
>
> Jon
>
What is the amperage rating on amp fuse F1?
---
On 01/13/2014 11:07 AM, Jon Elson wrote:
> On 01/02/2014 03:44 PM, Ed wrote:
>
> Ed,
>
> Any further progress on this problem? I'd like to help!
>
> Jon
>
Working on it this afternoon, I hope. Borrowed an o'scope to check out a
suspect power supply and comp
On 01/01/2014 10:43 PM, Jon Elson wrote:
> On 01/01/2014 02:14 PM, Ed wrote:
>> Encoders are on the end of the screw, 2-1 belt drive from motor, 1000
>> line/4000 count
>>
> Assuming 5 TPI screws, that is 4000 * 5 = 20,000 counts/inch.
> One comment is with the encode
hows 1.0 Ohm and
reacts the worst.
Ed.
--
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organizations don't have a clear picture of how application performance
affects their revenue. With
On 01/01/2014 02:20 PM, Eric Keller wrote:
> On Wed, Jan 1, 2014 at 3:14 PM, Ed wrote:
>
>> Don't know the ratings but they are ElectroCraft E723 motors that came
>> on the machine OEM
> an older DC motor might have a bad commutator bar. Or brush problems.
The brus
On 01/01/2014 12:52 PM, Jon Elson wrote:
> On 01/01/2014 10:27 AM, Ed wrote:
>> I am working on a mill with a Pico Systems setup and am having troubles
>> with the tuning.
>>
>> Wells-Index 3 axis mill, similar to a Bridgeport, formerly using Gecko 320's
>&
into
oscillation. Many other settings have been tried but it has been mostly
a blind change and try thing.
It will jog at about 10 IPM then faults when stopping.
The difference in torque in the different directions is what has me baffled.
T
length of the tool holder in
toolchange situations.
Ed.
--
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their reven
t shorter for tool changes.
The tool table is your friend.
Ed.
--
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affe
. If I am doing high production I would be using
form taps.
Ed.
--
Android is increasing in popularity, but the open development platform that
developers love is also attractive to malware creators. Download this white
ter
cleaning out the hole and tapping to a deeper Z depth.
Ed.
--
Android is increasing in popularity, but the open development platform that
developers love is also attractive to malware creators. Download this white
pape
ter-it-works/
Yummy...
--
Ed
softsolder.com
--
How ServiceNow helps IT people transform IT departments:
1. Consolidate legacy IT systems to a single system of record for IT
2. Standardize and globalize service proces
n't put that linky inside every source page:
http://creativecommons.org/licenses/by-nc-sa/3.0/us/
Eh, you should see what spammers do with my text... [sigh]
--
Ed
softsolder.com
--
Learn the latest--Visual Studio 201
hat, which means ripping the content is the only way to keep the
information around for their use.
Not mad, slightly flattered, and pleased that they found my writeups
useful...
--
Ed
softsolder.com
--
Learn th
ey need it.
A citation in keeping with the Creative Commons license for my blog
content would have been a nice touch, though...
--
Ed
softsolder.com
--
Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012,
. Some are select fitted.
.0002 large will make it bind, that is two tenths of a thousandth.
Ed.
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Introducing Performance Central, a new site from SourceForge and
AppDynamics. Performance Central is your source for n
arter, but they're small enough for most purposes.
Admittedly, the ATmega328's ADC isn't anything to write home about.
--
Ed
softsolder.com
--
Introducing Performance Central, a new site from SourceFo
ing electrical
conduit across the room to put the fan in the outside window?
Once upon a time, I poured a box of punch card flakes through that
(running) fan, thoroughly coating one of my cronies in the first shower
stall.
Seemed like a good idea at the time, is all I can say...
--
it...
--
Ed
softsolder.com
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See everything from the browser to the database with AppDynamics
Get end-to-end visibility with application monitoring from AppDynamics
Isolate bottlenecks and diagnose root cause in seco
leave out the fact that they're talking
about Z axis resolution. I suppose it's just marketing.
--
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softsolder.com
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ht
7;d be much easier to make one using Linux
than by homebrewing all the requisite code on bare metal. For sure, I'd
rather use Touchy than a four-line LCD and buttons teleported from the
mid 1980s...
--
Ed
softsolder.com
on improvements that can *only*
happen with a real machine controller...
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Ed
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n compatible alternative?
>
IIRC LP 107 comes in a squeeze tube, you cut off the end of the spout
and screw it into the provided opening. Then squeeze the tube while
shifting the lever back and forth.
Ed
--
This
y drive my M2 3D printer, but I'm still wrestling with
automagic numbering. When I get that mess working, I'll update the wiki
page.
Eagle2HAL probably isn't adequate for a Real Machine Tool, but it works
pretty well for my simple nee
I can barely drive
and *listen* at the same time.
--
Ed
softsolder.com
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__
ever read. It wasn't clear that was a Good Thing,
but I'm stuck with it. [grin]
--
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softsolder.com
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wer cost, at
least in this age of $5 webcams.
A bit of optical trickery on a second webcam would give you a real-time,
two-axis, filament diameter measurement tool.
Yup, this could work...
--
Ed
softsolder.com
--
Thi
be happiest, because you
don't want to constrain the loop motion too much: pinning it to a board
at the top of the arch might be too confining.
--
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t's a simple matter of HAL wiring!
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E
ht be workable for
platform probing, but I won't believe it until I run the numbers.
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would also be good.
The TC4 board also has four thermistor inputs... and I now have some 25
A DC-DC SSRs on hand. [grin]
--
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On 06/15/2013 08:43 AM, Viesturs Lācis wrote:
> take a look at probekins,
That's exactly why I'm so enthused about automagic platform probing:
somebody else wrote the kinematics module! [grin]
--
Ed
s
latform compensation.
Let many LinuxCNC installations blossom!
--
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