Re: [Emc-users] showstopper on gear change tally.

[Gene Heskett]

On Friday 10 November 2017 22:49:06 Jon Elson wrote:

> On 11/10/2017 09:01 PM, Gene Heskett wrote:
> > but it and a 3 lb coffee can full of 6800 u-f, 75 volt
> > electrolytics took a walk when I left the garage door open
> > on a nice spring day while going after a daily paper to
> > assuage Dee's crossword withdrawal symptoms. In nearly 28
> > years (3 weeks short of it, if Dee makes it till Dec 2nd,
> > we'll have had 28 years hitched to the same wagon. And she
> > might do it, she's feeling a lot better today) at this
> > address and thats the 2nd time anything was stolen. A
> > Hitachi battery powered 3/8" drill left without a trace
> > about a decade back. But while the drill was something
> > that could be used by most anybody, I do not have a
> > neighbor who even knows what a resistor or capacitor IS.
>
> Yes, I can easily believe somebody would take a cordless
> drill, but the resistors and capacitors is really strange!
> Must have been kids!
>
> On the other hand, in OUR midden heap, stuff does go missing
> for a long time, and then suddenly turns up in the CRAZIEST
> of places. And, a few things have never been found, but they
> might still be sitting in some box, somewhere.
>
> Jon
>
I can relate to that, but in the subsequent decade and maybe some change, 
I have stirred the midden heap pretty thoroughly without much luck. The 
much more recent resistors and caps were in a drawer, along with some 
other electronics detrius, and I needed one of the caps for something 
while building the pi and Sheldon up. It was a total surprise to me to 
pull that drawer open and find it wasn't stuffed. I normally have to 
re-arrange things just to get the drawer to close. They could show up, 
but I've stirred that pot quite well in the last 7 or 8 months.

Now, if I could just get the broadcom gpio's headers for the 3399 thats 
in the rock64 SOC, I'd see if I can get both an rtai kernel built, and a 
recent git pull of lcnc. The kernel isn't that big a problem asw I've 
already done that with a 4.11-rtai pull about 6 weeks back.  But the 
fellow that helped build the rpspi.ko driver has vanished, and I'm in 
over my pay grade trying to excise enough of the "am I running on a pi" 
checks to even start rebuilding it to run on the rock64. The rock64 
claims to be pi compatible, at the gpio level.

The rock64 kernel however has not been boot tested since it uses a 
different bootup from what the pi does. The boot directory is extremely 
sparsely populated, with no sign of grub that I can see.  There is 
a /boot/efi directory but I've never delt with an efi system till this 
one.

Is there a good efi tutorial about these days? Maybe I can learn enough 
to be dangerous. :)

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] showstopper on gear change tally.

[Jon Elson]

On 11/10/2017 09:01 PM, Gene Heskett wrote:
but it and a 3 lb coffee can full of 6800 u-f, 75 volt 
electrolytics took a walk when I left the garage door open 
on a nice spring day while going after a daily paper to 
assuage Dee's crossword withdrawal symptoms. In nearly 28 
years (3 weeks short of it, if Dee makes it till Dec 2nd, 
we'll have had 28 years hitched to the same wagon. And she 
might do it, she's feeling a lot better today) at this 
address and thats the 2nd time anything was stolen. A 
Hitachi battery powered 3/8" drill left without a trace 
about a decade back. But while the drill was something 
that could be used by most anybody, I do not have a 
neighbor who even knows what a resistor or capacitor IS.
Yes, I can easily believe somebody would take a cordless 
drill, but the resistors and capacitors is really strange!

Must have been kids!

On the other hand, in OUR midden heap, stuff does go missing 
for a long time, and then suddenly turns up in the CRAZIEST 
of places. And, a few things have never been found, but they 
might still be sitting in some box, somewhere.


Jon

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Re: [Emc-users] showstopper on gear change tally.

[Gene Heskett]

On Friday 10 November 2017 16:10:30 Gene Heskett wrote:

> Greetings everybody;
>
> I've gotten so used to mesa and it pullups on everything so that a
> true signal is a grounded wire, that I wired up the switches that way
> and thats all sealed up behind the switch mounting assembly.  So I
> look it up in my hal file to see which input is which gpio, and hook
> it all up just as if I was smart enough to know what the heck I'm
> doing.  Signal out of the gpio is false and stays false regardless of
> switch open/closed state.
>
> %#@^&*+)(%$# mach bob. It not only doesn't have a pullup on the input
> moc's, the sonofabeech hasn't even got ground continuity from the
> power ground elsewhere on the board, to the gnd next to the input
> pins!
>
> IOW the input circuits are 100% opto isolated from the real world and
> I assume one has to rig an external supply, or at the very least waste
> some heat in small r's to pull them up, and short the pullup to ground
> with my switches to turn them off.
>
> I have 3 other bobs, but I'd have to make a whole new box to house
> them as they are 2 to 6x the square size of this one.
>
> Does anyone know the value of resistor to use as a pullup? Those are
> pretty teeny little 4 pin moc's. Enough to turn them on with a fudge
> factor but not enough to blow them at a 100% duty cycle? With a 5 volt
> supply assumed.
>
> Thanks everybody.
>
> Cheers, Gene Heskett

With Andy recommending about 10 mills, then I'd need 390 ohm r's for 
current limiters. Unforch, my midden heap failed to disgorge any, let 
alone the 2 I'd need. I had, a year ago, a plastic baggie, quart size of 
the remains of several Radio Shack assortments that would have supplied 
that, but it and a 3 lb coffee can full of 6800 u-f, 75 volt 
electrolytics took a walk when I left the garage door open on a nice 
spring day while going after a daily paper to assuage Dee's crossword 
withdrawal symptoms.

In nearly 28 years (3 weeks short of it, if Dee makes it till Dec 2nd, 
we'll have had 28 years hitched to the same wagon.  And she might do it, 
she's feeling a lot better today) at this address and thats the 2nd time 
anything was stolen. A Hitachi battery powered 3/8" drill left without a 
trace about a decade back. But while the drill was something that could 
be used by most anybody, I do not have a neighbor who even knows what a 
resistor or capacitor IS. Basically, its a good neighborhood, with 
nearly everybody on a first name basis.

Anyway, another ten dollar assortment will be here in about 3+ weeks I 
guess. No wholesalers still exist that I'm aware of without a run to 
Pittsburg PA, about 150 miles north of me and I can't recall their name 
if I ever knew it.  So I'll sit and twiddle thumbs, or if I can keep my 
feet warm, go deer hunting when it opens up in 2 weeks. My freezer is 
out of venison. Gotta find out how this new 6.5 Creedmoor barrel, and 
Hornady 143 ELD-X bullet works on freezer filler. It punches paper 
rather nicely. :)

Thanks Andy, for the 10 milliamp figure on IRC.

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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[Emc-users] showstopper on gear change tally.

[Gene Heskett]

Greetings everybody;

I've gotten so used to mesa and it pullups on everything so that a true 
signal is a grounded wire, that I wired up the switches that way and 
thats all sealed up behind the switch mounting assembly.  So I look it 
up in my hal file to see which input is which gpio, and hook it all up 
just as if I was smart enough to know what the heck I'm doing.  Signal 
out of the gpio is false and stays false regardless of switch 
open/closed state.

%#@^&*+)(%$# mach bob. It not only doesn't have a pullup on the input 
moc's, the sonofabeech hasn't even got ground continuity from the power 
ground elsewhere on the board, to the gnd next to the input pins!

IOW the input circuits are 100% opto isolated from the real world and I 
assume one has to rig an external supply, or at the very least waste 
some heat in small r's to pull them up, and short the pullup to ground 
with my switches to turn them off.

I have 3 other bobs, but I'd have to make a whole new box to house them 
as they are 2 to 6x the square size of this one.

Does anyone know the value of resistor to use as a pullup? Those are 
pretty teeny little 4 pin moc's. Enough to turn them on with a fudge 
factor but not enough to blow them at a 100% duty cycle? With a 5 volt 
supply assumed.

Thanks everybody.

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] Touchegg with LCNC - Linux multitouch gesture recognizer

[Chris Albertson]

This does not have to be on a touch screen.  It works on a conventional
track pad.   The problem is most trackpads or such incredibly low quality.
  Good ones are expensive.   I use one of these daily:
https://www.amazon.com/gp/product/B003XLYAWC/ref=ask_ql_qh_dp_hza

If you are a machinist they are interesting devices because they are milled
from aluminum billets then sand blasted to remove the machine tool marks.
The top surface is covered with a very thin 1mm layer of glass with a
ground surface to remove "stickiness"

Logitec also makes some but they cost more and are not as well made, just
typical plastic trackpads.
https://www.amazon.com/LOG910003057-Logitech-Wireless-Rechargeable-Touchpad/dp/B0093H4WT6/ref=pd_bxgy_147_2?_encoding=UTF8&psc=1&refRID=9D833CWHZAT0TGHYD86M&dpID=21pCaESx4OL&preST=_SX300_QL70_&dpSrc=detail



On Thu, Nov 9, 2017 at 6:03 AM, bari  wrote:

> Has anyone tried Touchegg with Linuxcnc and have any feedback on how
> well it works?
>
> https://github.com/JoseExposito/touchegg
>
> https://www.youtube.com/watch?v=28Jjf5Ak6Q0
>
> No deb package. Libs were written by Canonical.
>
> The last time we tried multitouch with LCNC every user eventually asked
> for a keyboard and mouse. This was with a 23" LCD, so the problem wasn't
> resolution or size of the buttons.
>
> -Bari
>
>
> 
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