On Monday 28 December 2020 17:27:25 Gene Heskett wrote:
> On Monday 28 December 2020 17:13:52 andy pugh wrote:
> > On Mon, 28 Dec 2020 at 21:56, Gene Heskett
>
> wrote:
> > > And that get results, but bad, comm timeouts (error 12) once a
> > > second forever. Closer, but no biscuit yet.
> >
> >
On Monday 28 December 2020 17:13:52 andy pugh wrote:
> On Mon, 28 Dec 2020 at 21:56, Gene Heskett
wrote:
> > And that get results, but bad, comm timeouts (error 12) once a
> > second forever. Closer, but no biscuit yet.
>
> You might be able to ignore them. If it works otherwise.
>
> > Am I
On Mon, 28 Dec 2020 at 21:56, Gene Heskett wrote:
> And that get results, but bad, comm timeouts (error 12) once a second
> forever. Closer, but no biscuit yet.
You might be able to ignore them. If it works otherwise.
> Am I fighting with bad signal polarity since the red wire has an rs- tag,
On Monday 28 December 2020 16:26:58 andy pugh wrote:
> On Mon, 28 Dec 2020 at 21:15, Gene Heskett
wrote:
> > But while all the hy_vfd "pins" show up in the halmeter menu,
> > everything is zero. So what else do I need besides a simple
> > "loadusr hy_vfd" in my hal file?
>
> setp hy_vfd.enable
On Monday 28 December 2020 15:46:44 andy pugh wrote:
> On Mon, 28 Dec 2020 at 20:39, Gene Heskett
wrote:
> > But I need the "loaduser" line to make it work. And I am a member of
> > the dialout group.
>
> One of my VFDs works with just "loaduser hy_vfd -d /dev/ttyUSB0"
got that, no help,
On Mon, 28 Dec 2020 at 21:15, Gene Heskett wrote:
> But while all the hy_vfd "pins" show up in the halmeter menu, everything
> is zero. So what else do I need besides a simple "loadusr hy_vfd" in my
> hal file?
setp hy_vfd.enable 1
(or net it to something that becomes true after the VFD is
On Monday 28 December 2020 15:20:45 andy pugh wrote:
> On Mon, 28 Dec 2020 at 18:30, Gene Heskett
wrote:
> > So how do I filter this?
>
> Resistor and capacitor?
Maybe, but that cable from amazon arrived today. and has been installed,
and shows up at /dev/ttyUSB0 in dmesg. And all the
You need an RC single pole analog filter. Choose a cutoff
frequency a bit above what your required bandwidth is, subject
to resistors and capacitors on hand. Shouldn't be very critical.
Trying to digital filter a high-ish frequency pwm signal with a
1khz sampled servo thread is not going to
On Mon, 28 Dec 2020 at 20:39, Gene Heskett wrote:
> But I need the "loaduser" line to make it work. And I am a member of the
> dialout group.
One of my VFDs works with just "loaduser hy_vfd -d /dev/ttyUSB0"
The other needs me to specifically set all the comms parameters, so is:
loadusr -Wn
On Monday 28 December 2020 13:28:22 Gene Heskett wrote:
Possibly a better way just was found in my mailbox, that rs845 cable from
amazon came just now.
I've attached it to a spare usb plug on the back of the box, and hooked
the red wire marked rs- to the rs- terminal, and the black wire marked
On Mon, 28 Dec 2020 at 18:30, Gene Heskett wrote:
> So how do I filter this?
Resistor and capacitor?
--
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
On Sunday 27 December 2020 14:35:54 Gene Heskett wrote:
> On Sunday 27 December 2020 13:42:57 andy pugh wrote:
> > On Sun, 27 Dec 2020 at 18:31, Gene Heskett
>
> wrote:
> > > pd054=0 which is supposed to be an analog voltage from 0 to 10
> > > volts, representing 0 to 400 hz from the invertor.
On Saturday 26 December 2020 14:32:16 John Dammeyer wrote:
> Hi everyone,
> As I mentioned in a previous posting I'm expecting a Bergerda AC Servo
> to replace the Stepper motor on the knee of my mill.
> http://www.autoartisans.com/mill/KneeDrive.jpg
>
One of the things I will do if and when I
On Monday 28 December 2020 04:21:37 andrew beck wrote:
> Just another little update.
>
> Got the spindle running.
>
> Then connected the existing spindle encoder up and can't see any
> counting of pulses in the 7i77 encoder raw counts.
>
I _think_ the 7i77 has the same encoder facilities as the
On Mon, 28 Dec 2020 at 09:23, andrew beck wrote:
> I think I got it all right. Though I had to run it through a plug and
> transfer cable signals to other colors so could have made a mistake.
Sounds like a job for an oscilloscope, but you should be able to see
the output change with a
On Mon, 28 Dec 2020 at 07:40, Chris Albertson wrote:
>
> On Sun, Dec 27, 2020 at 2:15 PM Andy Pugh wrote:
> > Though, machining is faster for me. But not for most, I suspect.
> How would you cut the tooth profile?
I already said, I own the correct hob for making T5 pulleys. This is
why I said
Hey everyone.
Thanks for all the ideas.
Just a couple of thoughts.
I'm in New Zealand so need a nz source of parts or it gets to expensive for
shipping.
And my drive is a 400v drive I think dc bus voltage gets up to about 650vdc.
Sounds like I need to do some resistance calculations..
I can use the original 12T steel pulley which has a 1/2" hole with this
adaptor. I think I can get the broach through for the key. I'll have to
figure out how to create the clearance.
> -Original Message-
> From: John Dammeyer [mailto:jo...@autoartisans.com]
> Sent: December-28-20
Just another little update.
Got the spindle running.
Then connected the existing spindle encoder up and can't see any counting
of pulses in the 7i77 encoder raw counts.
Would love to have a List of reasons why not. Just so I can trouble shoot
it.
Things I know.
It is a 5v differential
On Monday 28 December 2020 02:59:35 John Dammeyer wrote:
> Hi Chris,
> All the metal pulleys I've bought from say Misumi or SDP are machined.
>
> There are some good videos out there on using say a broken spot drill
> to create a cutter. Heat it and cool slowly to reduce hardness.
> Grind a
It's coming along. Halfway done.
I'll cast the hub/plate and can face and bore on the same setting so when
screwed to the print it won't wobble. The print will be done so I can turn
the register and test fit with the print.
Like the current one, there will be a hub with the set screws to
Hi Chris,
All the metal pulleys I've bought from say Misumi or SDP are machined.
There are some good videos out there on using say a broken spot drill to create
a cutter. Heat it and cool slowly to reduce hardness. Grind a lathe tool to
the shape of the desired profile and turn the cutter to
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