Re: [Emc-users] Nice manual lathe in WA (assume WA USA not WA AU)

[Erik Christiansen]

On 26.01.19 14:22, andy pugh wrote:
> On Sat, 26 Jan 2019 at 05:39, andy pugh  wrote:
> 
> > https://www.gumtree.com.au/
> > 
> >
> 
> Actually, it is Western Australia isn't it?  The clue was in the URL

Yup. When I clicked on it, an email message was preloaded for sending
"I'm interested ... when can I pick it up?." Only thing is it's over
3000 km from the east coast to the west, so even being in the same
country isn't enough for it to be viable - especially as a return trip.

Erik
(Who survived the 45°C (113°F) we had on Friday - fortunately a peak for
hereabouts, though fairly common inland this summer, with peaks of 48.9°C
(120°F). And fortunately the fires are burning in very sparsely peopled
patches, so only those on the back blocks take much notice.))


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Re: [Emc-users] 1.5 kw vfd in 6040 problems

[Gene Heskett]

On Sunday 27 January 2019 17:57:03 Jon Elson wrote:

> On 01/27/2019 03:28 PM, Gene Heskett wrote:
> > So do I ground the direction desired, or feed it 10 volts?
> > Which the vfd also has available although I've not
> > measured it.
>
> UGH!  Only the manual for the drive will tell you that, IF
> you can decipher it!  I just use real, old-fashioned
> electromechanical relays and tie the terminal to where they
> tell you, just like a switch.

Thats why I was rather partial to the c41, it does use relays...  Or did, 
dunno what Arturo has done for the last version. Lookslike it still 
does.

> Jon
>
>
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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 



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Re: [Emc-users] 1.5 kw vfd in 6040 problems

[Gene Heskett]

On Sunday 27 January 2019 17:53:20 Jon Elson wrote:

> On 01/27/2019 12:11 PM, Gene Heskett wrote:
> > IMO the error check that throws that error is at fault,
> > not my code. There is plenty of room to arrive at the
> > proper place to do a climb cut around the inside of the hole.
>
> Well, I think there are two things that cause problems, if
> the hole is only a little bigger than the cutter.  First, I
> think LinuxCNC requires the lead-in move (and lead-out, too)
> to be greater than the radius of the cutter.  If you insist
> on a linear lead-in move that will be almost tangential to
> the desired hole, it gets real hard to find a good point to
> start the lead-in from.  An arc move for the lead-in should
> solve this.
>
> But, I still don't understand why you need to do this with
> cutter radius comp?
>
The backplot looks a lot closer to the real thing. If I do my own cutter 
rad comp, then the outline looks wrong on screen.

But I guess one can't have his cake and enjoy eating it too...

I can see why it would bitch if the hole was smaller than the tool, but 
its not. Screw it, move to the +x point of the circle -toolrad, 
directly, then circle at only 20 thou radius  while boreing deeper and 
deeper untill its thru the workpiece, leaving a nice clean hole. When 
done, leaving at that depth for one more full circle just for cleanup. 
then back to the center of the  hole and withdraw the tool. Head for the 
next hole, wash, rinse & repeat.

Thanks Jon.

[...]

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 



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Re: [Emc-users] 1.5 kw vfd in 6040 problems

[Gene Heskett]

On Sunday 27 January 2019 16:28:58 Gene Heskett wrote:

> On Sunday 27 January 2019 13:33:50 Gene Heskett wrote:
> > On Sunday 27 January 2019 11:33:39 Jon Elson wrote:
> > > On 01/26/2019 07:15 PM, Gene Heskett wrote:
> > > > I've about give up on controlling this VFD with a pwmgen
> > > > directly as I have no way to step the 5 volt pwm up to a
> > > > 10 volt pwm.
> > >
> > > Can you program the VFD so 5 V input is the top speed you want?
> >
> > If there is such a register, it is not adequately described in
> > English. At about 98% duty cycle, 5 volt pwm, it actually runs at
> > about 5400 revs, or half speed at half voltage=1/4 full speed, which
> > ought to be 6000 revs. But there appears to be a fixed loss at the
> > low end. I haven't measured the timings quite that accurately. This
> > is treating the pwm as an AVI input, there is no response when the
> > input is set for PWM but the waveform is only a rail to rail 5
> > volts. It might work at 10 volts but I've no quick and dirty way to
> > step it up to 10 volts p-p. So there is a 50% nominal error I can't
> > explain.
> >
> > So I'll just put in the c41.  That will likely require I reeassign
> > the fwd wire to supply the bobs 5 volts to the c41 as input logic
> > supply. Then the question is, has the 12 volts from the vfd got
> > enough currant to run the relays, or do I have to break into my jury
> > rigged 24 volt fan supply for that 200 ma. TBD.
> >
> > Frankly, this is being a big enough problem that I think the first
> > box completed in this 2 box project, will actually go to the 6040
> > interface. I've ordered another 7i76d from mesa, which has this
> > c41/spinx1 built in, so I will shortly have enough stuff to make
> > both.
> >
> > > Jon
>
> One final question. This vfd has a 12 volt output, but load it with
> the C41 it becomes about 5.5 volts, so since the shade tree fan supply
> if floating, I'm in the process of borrowing half of that lash up for
> its 12 volts, which should power the C41 including it direction output
> relays.
>
> So one final question, as its been 2 years since I wired up the
> sheldons vfd, a clone from ebay.
>
> So do I ground the direction desired, or feed it 10 volts?
>
> Which the vfd also has available although I've not measured it. I will
> when I get it back together.  I'll use that 10 volts as the direction
> voltage if its in tolerance and the vfd needs a high to enable that
> direction.
>
> Cheers, Gene Heskett

And the c41 turned into a bust, apparently pretty badly blown. Once 
powered up, relay 2 is stuck on and relacing the smoking uln2003 stopped 
the smoke, but the relay is stuck on anyway. So I'll go back to running 
it by hand, and work on my code to get rid of the need for G41/G42 
completely inside the subroutine that drills all the holes. The backplot 
won't look so pretty but at least the holes will be the size I asked 
for. Ditto the dsub cutouts which are about 2mm larger in every 
direction than I asked for. I didn't really want to be able to throw 
tomcats thru the gaps.

Some mornings its just not worth it to gnaw thru the straps and get up to 
pee.

But I've another 7i76d on the way now so once I get the code working  
again and the connector panels carved, I'll start reconfiguring this one 
to run this 6040 Gantry.

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 



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Re: [Emc-users] 1.5 kw vfd in 6040 problems

[Jon Elson]

On 01/27/2019 03:28 PM, Gene Heskett wrote:
So do I ground the direction desired, or feed it 10 volts? 
Which the vfd also has available although I've not 
measured it.
UGH!  Only the manual for the drive will tell you that, IF 
you can decipher it!  I just use real, old-fashioned 
electromechanical relays and tie the terminal to where they 
tell you, just like a switch.


Jon


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Re: [Emc-users] 1.5 kw vfd in 6040 problems

[Jon Elson]

On 01/27/2019 12:11 PM, Gene Heskett wrote:
IMO the error check that throws that error is at fault, 
not my code. There is plenty of room to arrive at the 
proper place to do a climb cut around the inside of the hole.
Well, I think there are two things that cause problems, if 
the hole is only a little bigger than the cutter.  First, I 
think LinuxCNC requires the lead-in move (and lead-out, too) 
to be greater than the radius of the cutter.  If you insist 
on a linear lead-in move that will be almost tangential to 
the desired hole, it gets real hard to find a good point to 
start the lead-in from.  An arc move for the lead-in should 
solve this.


But, I still don't understand why you need to do this with 
cutter radius comp?


Jon


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Re: [Emc-users] 1.5 kw vfd in 6040 problems

[Gene Heskett]

On Sunday 27 January 2019 13:33:50 Gene Heskett wrote:

> On Sunday 27 January 2019 11:33:39 Jon Elson wrote:
> > On 01/26/2019 07:15 PM, Gene Heskett wrote:
> > > I've about give up on controlling this VFD with a pwmgen
> > > directly as I have no way to step the 5 volt pwm up to a
> > > 10 volt pwm.
> >
> > Can you program the VFD so 5 V input is the top speed you want?
>
> If there is such a register, it is not adequately described in
> English. At about 98% duty cycle, 5 volt pwm, it actually runs at
> about 5400 revs, or half speed at half voltage=1/4 full speed, which
> ought to be 6000 revs. But there appears to be a fixed loss at the low
> end. I haven't measured the timings quite that accurately. This is
> treating the pwm as an AVI input, there is no response when the input
> is set for PWM but the waveform is only a rail to rail 5 volts. It
> might work at 10 volts but I've no quick and dirty way to step it up
> to 10 volts p-p. So there is a 50% nominal error I can't explain.
>
> So I'll just put in the c41.  That will likely require I reeassign the
> fwd wire to supply the bobs 5 volts to the c41 as input logic supply.
> Then the question is, has the 12 volts from the vfd got enough currant
> to run the relays, or do I have to break into my jury rigged 24 volt
> fan supply for that 200 ma. TBD.
>
> Frankly, this is being a big enough problem that I think the first box
> completed in this 2 box project, will actually go to the 6040
> interface. I've ordered another 7i76d from mesa, which has this
> c41/spinx1 built in, so I will shortly have enough stuff to make both.
>
> > Jon

One final question. This vfd has a 12 volt output, but load it with the 
C41 it becomes about 5.5 volts, so since the shade tree fan supply if 
floating, I'm in the process of borrowing half of that lash up for its 
12 volts, which should power the C41 including it direction output 
relays.

So one final question, as its been 2 years since I wired up the sheldons 
vfd, a clone from ebay.

So do I ground the direction desired, or feed it 10 volts?

Which the vfd also has available although I've not measured it. I will 
when I get it back together.  I'll use that 10 volts as the direction 
voltage if its in tolerance and the vfd needs a high to enable that 
direction.

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 



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Re: [Emc-users] 1.5 kw vfd in 6040 problems

[Gene Heskett]

On Sunday 27 January 2019 11:33:39 Jon Elson wrote:

> On 01/26/2019 07:15 PM, Gene Heskett wrote:
> > I've about give up on controlling this VFD with a pwmgen
> > directly as I have no way to step the 5 volt pwm up to a
> > 10 volt pwm.
>
> Can you program the VFD so 5 V input is the top speed you want?
>
If there is such a register, it is not adequately described in English.
At about 98% duty cycle, 5 volt pwm, it actually runs at about 5400 revs, 
or half speed at half voltage=1/4 full speed, which ought to be 6000 
revs. But there appears to be a fixed loss at the low end. I haven't 
measured the timings quite that accurately. This is treating the pwm as 
an AVI input, there is no response when the input is set for PWM but the 
waveform is only a rail to rail 5 volts. It might work at 10 volts but 
I've no quick and dirty way to step it up to 10 volts p-p. So there is a 
50% nominal error I can't explain.

So I'll just put in the c41.  That will likely require I reeassign the 
fwd wire to supply the bobs 5 volts to the c41 as input logic supply. 
Then the question is, has the 12 volts from the vfd got enough currant 
to run the relays, or do I have to break into my jury rigged 24 volt fan 
supply for that 200 ma. TBD.

Frankly, this is being a big enough problem that I think the first box 
completed in this 2 box project, will actually go to the 6040 interface. 
I've ordered another 7i76d from mesa, which has this c41/spinx1 built 
in, so I will shortly have enough stuff to make both.

> Jon
>
>
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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 



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Re: [Emc-users] 1.5 kw vfd in 6040 problems

[Gene Heskett]

On Sunday 27 January 2019 11:32:34 Jon Elson wrote:

> On 01/26/2019 07:15 PM, Gene Heskett wrote:
> > Why can't I drill a .209" diameter hole with a 4mm (.157")
> > tool?
>
> Well, I do this sort of thing all the time.
>
> Try downloading the first program on this page
> http://pico-systems.com/gcode.html
> or the next to last (make ring).  These should compile on
> any LinuxCNC system with :
>
> cc -o progname progname.c
>
> You will need to edit in a spindle speed command.  Now,
> these do NOT use cutter radius compensation, I don't see the
> point.
>
> But, the radius compensation works on RADIUS, not diameter,
> so there's no problem as long as the cutter radius is less
> than the hole radius.  However, the lead-in and lead-out
> moves are TRICKY! The problem is that you have to make sure
> the inside corner never "pinches" the inside part of the
> curve.  If the tool radius is pretty close to the hole
> radius, then the selection of the lead-in point (and
> lead-out, too) is REALLY tricky.  You probably need to use
> arc lead-ins and lead-outs to solve it inside a small hole.
>
It seems to me for inside holes, where the cutter radii still results in 
an outward movement after going a g0 to the center of the hole, then 
moving outward and to the starting depth ought to be legal. This is one 
of the reasons I have always done my tool rad comps without g41 or g42. 
The lead in and leadout calcs are way too fussy and do not take into 
account they are cutting air.

Here is thatsubroutine as it exists right now, and which works but cuts 
way too big a hole using g42. My cuts in all of this code are climb 
cuts, tool lasts 4x longer cutting dry alu. However eventually there 
will be a low pressure air blast to clear the swarf from being recut, 
but atm do not have the io to start-stop that small air pump salvaged 
from a soldering station that failed. Just one of the reasons for a 
newer interface.

o130 SUB
G40 (turn off comp)
F30 (feed rate)
(arrives here at center of hole, change this to take a passed argument 
for radius)
G0 Z#<_ZUP> ( clear work)
G0 X[#2 - 0.35] Y[#3 - 0.35] (stop move far enough away for G41 blend in 
from where ever it comes from)
G41 D15 X[#1 + #2] y#3 
G0 Z0.01
G3 F#10 I-#1 J-0.000 Z#<_ZDN> P9
F50
G0 Z#<_ZUP> (back to clear)
G40
o130 ENDSUB

And it drills too big a hole. Obviously too big if g42 is used. G3 is 
ccw=climb cut.

The setup and call snippet, one of 14 uses of this subroutine:
( Lets drill the db connector mounting holes first. This drills 2 holes )
( about 4.2mm in diameter, and is intended to clear the connectors )
( mounting nuts so he panel is just sandwiched, not bolted solidly )
( goto left mounting hole of current connector)
#<_tmpy> = #<_dsub_yloc> (is vertical center of dsub pattern)
#<_tmpx> = [#<_dsub_xloc> -#<_STD_3A>] (xloc is horizontal center of dsub 
pattern)

o130 CALL [#<_teeny_hole>] [#<_tmpx>] [#<_tmpy>] [15] <- now reports 
error if o130 call uses a g41.

( go to right mounting hole of current connector )
#<_tmpx> = [#<_dsub_xloc> + #<_STD_3A>]
(Y UNCHANGED )

o130 CALL [#<_teeny_hole>] [#<_tmpx>] [#<_tmpy>] [25]

(MSG,db mounting holes done)

I'll rewrite the subroutine code to do my own g41 and it will work first 
time for any size hole. 

IMO the error check that throws that error is at fault, not my code. 
There is plenty of room to arrive at the proper place to do a climb cut 
around the inside of the hole.

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 



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Re: [Emc-users] VFD, supposedly has RS485 port for speed/direction control

[MC Cason via Emc-users]

On 1/27/19 10:22 AM, andy pugh wrote:

On Sun, 27 Jan 2019 at 14:37, MC Cason via Emc-users <
emc-users@lists.sourceforge.net> wrote:

BTW, do you have a local Chinese restaurant that is actually run by

Chinese nationals?  It maybe worthwhile to check into getting the doc
translated.


Consider how well native-english staff at a local restaurant would fare at
re-writing a VFD manual.
It isn't just reading the (technical) Chinese, it is translating it into
the correct (technical) English.



  If it's a choice between getting the VFD running, and throwing it 
away, anything is possible as a last resort...  He could get lucky and 
find somebody that knows a bit about electronics.


---Mark




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Re: [Emc-users] VFD, supposedly has RS485 port for speed/direction control

[Chris Albertson]

On Sun, Jan 27, 2019 at 8:25 AM andy pugh  wrote:

> On Sun, 27 Jan 2019 at 14:37, MC Cason via Emc-users <
> emc-users@lists.sourceforge.net> wrote:
>
>BTW, do you have a local Chinese restaurant that is actually run by
> > Chinese nationals?  It maybe worthwhile to check into getting the doc
> > translated.
>

I asked  my wife if she could help with a Chinese GPS receiver user manual.
Chinese was her second language. Japanese being first.  She went to school
from 1st to 8th grade in a Chinese school and can read and write Manderin
to 8th grade level.  She is fluent in Japanese, Chinese and English but
looked at the GPS manual and says "it is all techncal words".  The thing
abut Chinese is you know the character or you don't.  In English we can
figure out what a word is but characters must be 100% memorized, so if a
document is filled the technical stuff it is unreadable by some one with an
8th grade chinese education.In Japan all the technical words, they just
use English, but in China they re-cycle existing charaters and it it is not
readable by a chiese speaker who does not know the code.

That said Google Translate is not bad at Chinese to English.


>
> Consider how well native-english staff at a local restaurant would fare at
> re-writing a VFD manual.
> It isn't just reading the (technical) Chinese, it is translating it into
> the correct (technical) English.
>
>
> --

Chris Albertson
Redondo Beach, California

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Re: [Emc-users] VFD, supposedly has RS485 port for speed/direction control

[Gene Heskett]

On Sunday 27 January 2019 11:22:28 andy pugh wrote:

> On Sun, 27 Jan 2019 at 14:37, MC Cason via Emc-users <
> emc-users@lists.sourceforge.net> wrote:
>
>BTW, do you have a local Chinese restaurant that is actually run by
>
> > Chinese nationals?  It maybe worthwhile to check into getting the
> > doc translated.
>
> Consider how well native-english staff at a local restaurant would
> fare at re-writing a VFD manual.
> It isn't just reading the (technical) Chinese, it is translating it
> into the correct (technical) English.

Which is exactly why I never thought of it in the first place. :(

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 



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Re: [Emc-users] Nice manual lathe in WA (assume WA USA not WA AU)

[Jon Elson]

On 01/27/2019 09:48 AM, Mark Johnsen wrote:

My 15" with six foot bed weighs 3500 Lbs.  Good for
stability.  My previous lathe was a 12" Atlas-Craftsman.
The difference in rigidity is just AMAZING!   See
http://pico-systems.com/sheldon.html  for the whole saga of
getting it moved in and fixed up.


I don't think I've seen those pictures before.   That was quite an
operation.  Both with getting the lathe into place (forklift tracks) and
then your grinding.  Looks awesome.  Andy should be very happy with your
lathe choice:-)

Yup, this was a CRAZY adventure, and cost me my back!  (I 
tore something there while trying to pull a 24 x 36" surface 
plate out of the back of my car.  DUMB!!!)  But, I learned a 
lot about machine rebuilding doing it, and the machine is 
totally awesome!


Jon


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Re: [Emc-users] 1.5 kw vfd in 6040 problems

[Jon Elson]

On 01/26/2019 07:15 PM, Gene Heskett wrote:
I've about give up on controlling this VFD with a pwmgen 
directly as I have no way to step the 5 volt pwm up to a 
10 volt pwm.


Can you program the VFD so 5 V input is the top speed you want?

Jon


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Re: [Emc-users] 1.5 kw vfd in 6040 problems

[Jon Elson]

On 01/26/2019 07:15 PM, Gene Heskett wrote:
Why can't I drill a .209" diameter hole with a 4mm (.157") 
tool?

Well, I do this sort of thing all the time.

Try downloading the first program on this page 
http://pico-systems.com/gcode.html
or the next to last (make ring).  These should compile on 
any LinuxCNC system with :


cc -o progname progname.c

You will need to edit in a spindle speed command.  Now, 
these do NOT use cutter radius compensation, I don't see the 
point.


But, the radius compensation works on RADIUS, not diameter, 
so there's no problem as long as the cutter radius is less 
than the hole radius.  However, the lead-in and lead-out 
moves are TRICKY! The problem is that you have to make sure 
the inside corner never "pinches" the inside part of the 
curve.  If the tool radius is pretty close to the hole 
radius, then the selection of the lead-in point (and 
lead-out, too) is REALLY tricky.  You probably need to use 
arc lead-ins and lead-outs to solve it inside a small hole.


Jon


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Re: [Emc-users] VFD, supposedly has RS485 port for speed/direction control

[andy pugh]

On Sun, 27 Jan 2019 at 14:37, MC Cason via Emc-users <
emc-users@lists.sourceforge.net> wrote:

   BTW, do you have a local Chinese restaurant that is actually run by
> Chinese nationals?  It maybe worthwhile to check into getting the doc
> translated.


Consider how well native-english staff at a local restaurant would fare at
re-writing a VFD manual.
It isn't just reading the (technical) Chinese, it is translating it into
the correct (technical) English.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed
for the especial use of mechanical geniuses, daredevils and lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1916

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[Emc-users] Nice manual lathe in WA (assume WA USA not WA AU)

[Mark Johnsen]

>
> My 15" with six foot bed weighs 3500 Lbs.  Good for
> stability.  My previous lathe was a 12" Atlas-Craftsman.
> The difference in rigidity is just AMAZING!   See
> http://pico-systems.com/sheldon.html  for the whole saga of
> getting it moved in and fixed up.
>

I don't think I've seen those pictures before.   That was quite an
operation.  Both with getting the lathe into place (forklift tracks) and
then your grinding.  Looks awesome.  Andy should be very happy with your
lathe choice:-)
Mark

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Re: [Emc-users] VFD, supposedly has RS485 port for speed/direction control

[Gene Heskett]

On Sunday 27 January 2019 09:35:08 MC Cason via Emc-users wrote:

> Gene,
>
>    I don't have the same one as you, but I have 2 Huanyang branded
> vfds.  On the HY series vfd, the screw terminal blocks are marked RS+
> and RS-.  On the GT series vfd, the screw terminal blocks are marked
> 485+ and 485-

I don't think either of those exist.

>    You "SHOULD" have something similar  ...maybe, possibly...  It is
> Chinese after all...
>
>
>    BTW, do you have a local Chinese restaurant that is actually run by
> Chinese nationals?  It maybe worthwhile to check into getting the doc
> translated.
>
Two actually, although their English leaves a _lot_ to be desired. Good 
enough to take your order with a lot of hand waving at the menu, and of 
course to collect the money.  Makes good food though. :)
>
> ---Mark
>
> On 1/27/19 8:10 AM, Gene Heskett wrote:
> > Greetings all;
> >
> > Which brings up another possibility to control it. But I've not yet
> > discovered an "rj" connector. I've a whole bag of full duplex, or
> > half duplex, ttl to rs485 gismo's as they sell for less than $2 on
> > fleabay.
> >
> > Does anyone have a list of common terminal names it this is brought
> > out on a terminal strip?
> >
> > I see in the vfd docs, where d160 can be the address of 01-254, and
> > d161 can spec the baud rate up to 38 kilobaud, and d162 controls how
> > it handles com errors. But zero data on what sort of data is needed
> > to control it.
> >
> > Do we have a driver, prefereably half-duplex where the return value
> > might be the vfd's own tach output so I can get something to display
> > in axis?
> >
> > I see this motor has a metal disk about an inch in diameter,
> > presumably to throw off leakage, located about 10 mm above the er11
> > threads. Could this be used to setup a 1 or 2 pulse per rev tach
> > signal without throwing it out of balance, say with a 2 narrow bands
> > of flat black paint read by a non-contact IR circuit?
> >
> > If so, what is its name?  Is this another name for modbus?
> >
> > Cheers, Gene Heskett
>
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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 



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Re: [Emc-users] VFD, supposedly has RS485 port for speed/direction control

[MC Cason via Emc-users]

Gene,

  I don't have the same one as you, but I have 2 Huanyang branded 
vfds.  On the HY series vfd, the screw terminal blocks are marked RS+ 
and RS-.  On the GT series vfd, the screw terminal blocks are marked 
485+ and 485-


  You "SHOULD" have something similar  ...maybe, possibly...  It is 
Chinese after all...



  BTW, do you have a local Chinese restaurant that is actually run by 
Chinese nationals?  It maybe worthwhile to check into getting the doc 
translated.




---Mark

On 1/27/19 8:10 AM, Gene Heskett wrote:

Greetings all;

Which brings up another possibility to control it. But I've not yet
discovered an "rj" connector. I've a whole bag of full duplex, or half
duplex, ttl to rs485 gismo's as they sell for less than $2 on fleabay.

Does anyone have a list of common terminal names it this is brought out
on a terminal strip?

I see in the vfd docs, where d160 can be the address of 01-254, and d161
can spec the baud rate up to 38 kilobaud, and d162 controls how it
handles com errors. But zero data on what sort of data is needed to
control it.

Do we have a driver, prefereably half-duplex where the return value might
be the vfd's own tach output so I can get something to display in axis?

I see this motor has a metal disk about an inch in diameter, presumably
to throw off leakage, located about 10 mm above the er11 threads. Could
this be used to setup a 1 or 2 pulse per rev tach signal without
throwing it out of balance, say with a 2 narrow bands of flat black
paint read by a non-contact IR circuit?

If so, what is its name?  Is this another name for modbus?

Cheers, Gene Heskett




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[Emc-users] VFD, supposedly has RS485 port for speed/direction control

[Gene Heskett]

Greetings all;

Which brings up another possibility to control it. But I've not yet 
discovered an "rj" connector. I've a whole bag of full duplex, or half 
duplex, ttl to rs485 gismo's as they sell for less than $2 on fleabay.

Does anyone have a list of common terminal names it this is brought out 
on a terminal strip?

I see in the vfd docs, where d160 can be the address of 01-254, and d161 
can spec the baud rate up to 38 kilobaud, and d162 controls how it 
handles com errors. But zero data on what sort of data is needed to 
control it.

Do we have a driver, prefereably half-duplex where the return value might 
be the vfd's own tach output so I can get something to display in axis?

I see this motor has a metal disk about an inch in diameter, presumably 
to throw off leakage, located about 10 mm above the er11 threads. Could 
this be used to setup a 1 or 2 pulse per rev tach signal without 
throwing it out of balance, say with a 2 narrow bands of flat black 
paint read by a non-contact IR circuit?

If so, what is its name?  Is this another name for modbus?

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 



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Re: [Emc-users] WeTransfer? Anybody know anything about them?

[Gene Heskett]

On Sunday 27 January 2019 05:05:08 Peter Blodow wrote:

> Gene,
> while writing all this description you could easily have taken a
> couple of pictures and mailed them instead. If I remember right, some
> time ago you promised some more pics, anyway It's hard to follow
> and imagine what you are doing and what your problems are without
> knowing the merchandise you are talking about. E.g., most of the world
> is not familiar with US brand names.
> Peter
>
This is also true Peter. But to get decent pix of it, I'd need a taller 
place to stand as it's now on a shelf about 6 feet up in the air and 
there is only room for a two step ladder.  But I'll see if I can concoct 
a selfy stick. or something that might get a decent shot of it. Probably 
after I get the c41 mounted and wired up. I don'y know as I'd be smart 
on lifting it back dpwn as I'm not cleared for heavy weight on the left 
arm for another couple months. I'll see if I can get a grip with the 
right along and get it down as down on a table it would be a heck of a 
lot easier to work on.

Then I can get some pix from usefull angles.
.
I did find the docs on the C41, google to the rescue. But I'm not sure 
I'm up for the day as sleep was hard to find last night. So I'll start 
some coffee and see about some breakfast for us next.

Thanks for the nudge Peter.

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 



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Re: [Emc-users] WeTransfer? Anybody know anything about them?

[Peter Blodow]

Gene,
while writing all this description you could easily have taken a couple 
of pictures and mailed them instead. If I remember right, some time ago 
you promised some more pics, anyway It's hard to follow and imagine 
what you are doing and what your problems are without knowing the 
merchandise you are talking about. E.g., most of the world is not 
familiar with US brand names.

Peter


Am 27.01.2019 um 09:21 schrieb Gene Heskett:

On Sunday 27 January 2019 02:47:51 Roland Jollivet wrote:


Hi Gene

Do you want to look at these two manuals? There might be useful info
as in similarities;

https://hobbytronics.co.za/Content/external/1159/YL%20Manual.pdf
https://hobbytronics.co.za/Content/external/1159/vfd.pdf


They have zero resemblance to this one, which is all on one pcb, about 6"
square, fastened to a 5/8" thick block of ALU around 6.6" square.  No
cabinet. just mounted in an overweight steel box that did have a row of
4 TH6560 drivers and a puny power psu for the steppers, with the A axis
plugged in it was loaded down to 14 volts, but the label on the supply
said 24 volts.  Thats all been boxed up. So theres now a small 24 volt
to run the cooling fan, but will have an old original cnc4pc C41 in its
big box by late tomorrow.






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Re: [Emc-users] WeTransfer? Anybody know anything about them?

[Gene Heskett]

On Sunday 27 January 2019 02:47:51 Roland Jollivet wrote:

> Hi Gene
>
> Do you want to look at these two manuals? There might be useful info
> as in similarities;
>
> https://hobbytronics.co.za/Content/external/1159/YL%20Manual.pdf
> https://hobbytronics.co.za/Content/external/1159/vfd.pdf
>
They have zero resemblance to this one, which is all on one pcb, about 6" 
square, fastened to a 5/8" thick block of ALU around 6.6" square.  No 
cabinet. just mounted in an overweight steel box that did have a row of 
4 TH6560 drivers and a puny power psu for the steppers, with the A axis 
plugged in it was loaded down to 14 volts, but the label on the supply 
said 24 volts.  Thats all been boxed up. So theres now a small 24 volt 
to run the cooling fan, but will have an old original cnc4pc C41 in its 
big box by late tomorrow.

> Otherwise, find your same drive sold by a 'reputable' outlet in the
> USA or UK, then download the manual from their site.

I'd love to, but the closest thing is $220 on fleabay and includes a 
similar motor. But the vfd looks like the std in a plastic box version.

I am gonna make this work or else.

> On Sun, 27 Jan 2019 at 05:46, Gene Heskett  
wrote:
> > On Saturday 26 January 2019 20:39:39 Chris Albertson wrote:
> > > Try Google Translate.  It is not completely bad with Chinese to
> > > English.
> >
> > Might not be, but does it properly scale ther text to fit the
> > graphic its wrapped around? Without that, likely waste of time.
> >
> > Besides, I've given up an direct drive, so I'll see if I can make an
> > old cnc4pc C41 run it tomorrow. That will mean I'm rummaging thru
> > the stack of old printouts about 4" high in the shop to find that
> > one.  It was one of those things I tried on TLM before I gave up and
> > tossed the OEM and bought one of Jon E's pwm-servo amps to drive
> > that bigger spindle motor. 2nd best thing I ever did for TLM, best
> > was the tapered gibs.
> >
> > If I can find that printout, it oughtta be a piece of cake.
> >
> > > On Sat, Jan 26, 2019 at 5:32 PM Gene Heskett
> > > 
> >
> > wrote:
> > > > On Saturday 26 January 2019 20:07:31 Dale Ertley via Emc-users 
wrote:
> > > > >  Gene,
> > > > > Watch out for embedded trash in the download before you move
> > > > > it to a good computer.  Or just print out the info from the
> > > > > USB booted computer.
> > > > > Dale
> > > >
> > > > I finally gave up and clicked the accept button, but now
> > > > somebody wants to buy a big huwai smartphne from amazon, charged
> > > > to my account. Tain't gonna happen.
> > > >
> > > > There doesn't appear to be anything except in the VFD manual,
> > > > its still 95% chinese, in a docx format. Even the newest
> > > > LibreOffice-6.1.4 screws that up, generally rendering it as
> > > > gibberish.
> > > >
> > > > > On Saturday, January 26, 2019, 7:59:42 PM EST, Dale Ertley
> > > > > via Emc-users  wrote:
> > > > >
> > > > >   Gene,
> > > > > Will this work for you?
> > > > > Do you have an old used computer with only linux operating
> > > > > system on it?  NO INFORMATION. wipe drive
> > > > > Or boot from a new USB jump drive with only linux CNC
> > > > > operating system. Link to that with a NEW EMAIL address from
> > > > > google/yahoo. Then delete it. Dale
> > > > >
> > > > > On Saturday, January 26, 2019, 12:57:21 AM EST, Gene
> > > > > Heskett  wrote:
> > > > >
> > > > >  On Friday 25 January 2019 22:25:56 Chris Albertson wrote:
> > > > > > It's just a download link.  Why would you need to install
> > > > > > any software on your machine other than a web browser  It
> > > > > > appears that they don't.
> > > > > > I just sent you a file.  Don't worry it's OK.
> > > > >
> > > > > And the actual email from them gives spamassassin a tummy
> > > > > ache, scoreing 6.6 from a multitude of sins,
> > > > >
> > > > > > Of course I could have attached it to this email but what if
> > > > > > it was a 10GB file?  That is what this service is for,
> > > > > > sending stuff you can't email.
> > > > > >
> > > > > > On Fri, Jan 25, 2019 at 5:31 PM Gene Heskett
> > > > > > 
> > > > >
> > > > > wrote:
> > > > > > > Greetings;
> > > > > > >
> > > > > > > The seller claims he has obtained the english docx file
> > > > > > > from the maker, all; 5 that go with the machine. But he
> > > > > > > sent them to me by way of WeTransfer, and WeTransfer is
> > > > > > > holding them hostage until I let their site install
> > > > > > > whatever the heck they want to onto my machine.
> > > > > > >
> > > > > > > I emailed him back and said that wasn't going to happen,
> > > > > > > find a way to put them on a cd or something &  mail to my
> > > > > > > shipping address.  No further word.
> > > >
> > > > [...]
> > > >
> > > > 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 
> > > >
> > >