On Wednesday 01 February 2017 23:06:51 Jerry Stuckle wrote:
> On 1/29/2017 1:48 PM, Gene Heskett wrote:
> > Alan, ALL of the motor drivers are switchmode, with the current
> > regulation running at or above 20 KHz. And these noise spikes are
> > ringing at nominally 100 MHz. I have managed to get
On 1/29/2017 1:48 PM, Gene Heskett wrote:
>
> Alan, ALL of the motor drivers are switchmode, with the current
> regulation running at or above 20 KHz. And these noise spikes are
> ringing at nominally 100 MHz. I have managed to get the xy motor noise
> under control by takeing out the switchmod
On Wednesday 01 February 2017 17:41:00 Luke Kenneth Casson Leighton
wrote:
> On Sun, Jan 29, 2017 at 6:48 PM, Gene Heskett
wrote:
> > On Sunday 29 January 2017 12:40:21 Alan Corey wrote:
> >
> > Alan, ALL of the motor drivers are switchmode, with the current
> > regulation running at or above 2
On Sun, Jan 29, 2017 at 6:48 PM, Gene Heskett wrote:
> On Sunday 29 January 2017 12:40:21 Alan Corey wrote:
> Alan, ALL of the motor drivers are switchmode, with the current
> regulation running at or above 20 KHz. And these noise spikes are
> ringing at nominally 100 MHz. I have managed to get
On Monday 30 January 2017 22:46:07 Christopher Barry wrote:
> On Sun, 29 Jan 2017 12:47:34 -0500
>
> Gene Heskett wrote:
> >On Sunday 29 January 2017 11:58:57 Paul Wise wrote:
> >> On Sun, Jan 29, 2017 at 9:47 PM, Gene Heskett wrote:
> >> > However, I have now had 5 different keyboards plugged in
On 30/01/17 23:00, Alan Corey wrote:
Biscuit tin or similar would do, ocuple of large ferrite cores and wind the
usb cables toroidally?
One question I've had for years about using big toroids for
suppression is this: If you've got a cord that you don't want to take
the connector off to fit t
On Sun, 29 Jan 2017 12:47:34 -0500
Gene Heskett wrote:
>On Sunday 29 January 2017 11:58:57 Paul Wise wrote:
>
>> On Sun, Jan 29, 2017 at 9:47 PM, Gene Heskett wrote:
>> > However, I have now had 5 different keyboards plugged into it, some
>> > wired, some wireless, and none of them can give me
> Biscuit tin or similar would do, ocuple of large ferrite cores and wind the
> usb cables toroidally?
>
I was thinking that as someone with a lathe he must know some metal
dealers around. I found a nice 2x4 foot piece of 1/8" aluminum at my
local dump. Can't bring myself to cut into it. But we
On Monday 30 January 2017 10:52:39 Alan Corey wrote:
> There's electrostatic shielding and electromagnetic shielding, I'm not
> sure which is which type. A radio signal has both components, the
> electrostatic doesn't carry far. A shielded loop antenna is mostly
> electrostaticly shielded and ma
On Sun, Jan 29, 2017 at 05:59:17PM -0500, Gene Heskett wrote:
> On Sunday 29 January 2017 13:56:53 Tzafrir Cohen wrote:
>
> > On Sun, Jan 29, 2017 at 12:47:34PM -0500, Gene Heskett wrote:
> > > On Sunday 29 January 2017 11:58:57 Paul Wise wrote:
> > > > USB protocol: use wireshark to see if the ke
There's electrostatic shielding and electromagnetic shielding, I'm not
sure which is which type. A radio signal has both components, the
electrostatic doesn't carry far. A shielded loop antenna is mostly
electrostaticly shielded and made from shielded wire (coax) wire but a
good receiving antenna
On Monday 30 January 2017 09:48:10 Lennart Sorensen wrote:
> On Sun, Jan 29, 2017 at 01:48:50PM -0500, Gene Heskett wrote:
> > Alan, ALL of the motor drivers are switchmode, with the current
> > regulation running at or above 20 KHz. And these noise spikes are
> > ringing at nominally 100 MHz. I h
On Sun, Jan 29, 2017 at 01:48:50PM -0500, Gene Heskett wrote:
> Alan, ALL of the motor drivers are switchmode, with the current
> regulation running at or above 20 KHz. And these noise spikes are
> ringing at nominally 100 MHz. I have managed to get the xy motor noise
> under control by takeing
On Monday 30 January 2017 04:51:59 Jonathan Wilson wrote:
> On Sun, 2017-01-29 at 13:10 -0500, Gene Heskett wrote:
> > On Sunday 29 January 2017 12:16:52 Jonathan Wilson wrote:
> > > On Sun, 2017-01-29 at 08:47 -0500, Gene Heskett wrote:
> > > > Greetings everybody;
> > > >
> > > > I am in the pro
On Sun, 2017-01-29 at 13:10 -0500, Gene Heskett wrote:
> On Sunday 29 January 2017 12:16:52 Jonathan Wilson wrote:
>
> > On Sun, 2017-01-29 at 08:47 -0500, Gene Heskett wrote:
> > > Greetings everybody;
> > >
> > > I am in the process of bringing a nearly 70 yo Sheldon lathe back to
> > > life, us
On Sunday 29 January 2017 13:56:53 Tzafrir Cohen wrote:
> On Sun, Jan 29, 2017 at 12:47:34PM -0500, Gene Heskett wrote:
> > On Sunday 29 January 2017 11:58:57 Paul Wise wrote:
> > > USB protocol: use wireshark to see if the keyboard event packets
> > > are reaching the device.
> >
> > I'll have to
On Sunday 29 January 2017 13:56:53 Tzafrir Cohen wrote:
> On Sun, Jan 29, 2017 at 12:47:34PM -0500, Gene Heskett wrote:
> > On Sunday 29 January 2017 11:58:57 Paul Wise wrote:
> > > USB protocol: use wireshark to see if the keyboard event packets
> > > are reaching the device.
> >
> > I'll have to
Hmm, sort of like sitting a couple hundred feet in the air with tons
of rocket fuel and LOX under you hoping it doesn't all blow up. Yeah,
I used to run (not own) a South Bend lathe about that size. I've got
a Microlux 7x14. Nice little digital scope, more than I can afford on
my SS. I've got a
On Sun, Jan 29, 2017 at 12:47:34PM -0500, Gene Heskett wrote:
> On Sunday 29 January 2017 11:58:57 Paul Wise wrote:
> > USB protocol: use wireshark to see if the keyboard event packets are
> > reaching the device.
>
> I'll have to install these tools. And I'll report what I find. I was
> not a
On Sunday 29 January 2017 12:40:21 Alan Corey wrote:
> I wonder why there's so much noise. Are you using something like a
> light dimmer for speed control? And what kind of noise, continuous or
> spikes when events happen? If you turn on an AM radio in the vicinity
> you'll probably hear your l
On Sunday 29 January 2017 12:16:52 Jonathan Wilson wrote:
> On Sun, 2017-01-29 at 08:47 -0500, Gene Heskett wrote:
> > Greetings everybody;
> >
> > I am in the process of bringing a nearly 70 yo Sheldon lathe back to
> > life, useing an raspberry-pi 3b for the machine controller.
> >
> > However,
On Sunday 29 January 2017 11:58:57 Paul Wise wrote:
> On Sun, Jan 29, 2017 at 9:47 PM, Gene Heskett wrote:
> > However, I have now had 5 different keyboards plugged into it, some
> > wired, some wireless, and none of them can give me a dependable
> > response to a key, and the error seems much wor
I wonder why there's so much noise. Are you using something like a
light dimmer for speed control? And what kind of noise, continuous or
spikes when events happen? If you turn on an AM radio in the vicinity
you'll probably hear your lathe noises, which might be helpful. I was
thinking lathe = i
On Sun, 2017-01-29 at 08:47 -0500, Gene Heskett wrote:
> Greetings everybody;
>
> I am in the process of bringing a nearly 70 yo Sheldon lathe back to
> life, useing an raspberry-pi 3b for the machine controller.
>
> However, I have now had 5 different keyboards plugged into it, some
> wired, s
On Sun, Jan 29, 2017 at 9:47 PM, Gene Heskett wrote:
> However, I have now had 5 different keyboards plugged into it, some
> wired, some wireless, and none of them can give me a dependable response
> to a key, and the error seems much worse for the key-up event.
Check the different layers of the
On 29/01/17 14:00, Gene Heskett wrote:
Greetings everybody;
I am in the process of bringing a nearly 70 yo Sheldon lathe back to
life, useing an raspberry-pi 3b for the machine controller.
However, I have now had 5 different keyboards plugged into it, some
wired, some wireless, and none of them
Greetings everybody;
I am in the process of bringing a nearly 70 yo Sheldon lathe back to
life, useing an raspberry-pi 3b for the machine controller.
However, I have now had 5 different keyboards plugged into it, some
wired, some wireless, and none of them can give me a dependable response
to
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