Re: [Emc-users] Atomic pi

[Marshland Engineering]

I bought one and was really disappointed. Forum is poor, Synaptic Package
manager does not work. Pop-Os was suggested but that too hiccuped. May just
use it as an internal server if I can get anything to run on it. No one seems
to have Windows running too well on it.  

Raspberry Pi is a much better bet. 

Cheers Wallace.



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Re: [Emc-users] Atomic pi

[Chris Albertson]

The "atomic pi" looked good at first and then we foubd they were just
surplllus junk that will never be suported in the long term.

Here is a NEW product that has has a huge company suporting it.   In fact,
they were smart to get there support and documentation in order some months
before the product was released.  STM has a hybrid ARM hybrid A and M chip.

The A side of the chip can run Debian Linux.  They have their own version
and I think real-time support for it and the M side of the chip is the
normal STM32F microcontroller.

This is a little like the Ti chip in the BBB that has PRUs but the M4 is
quite a lot better suited for machine control because of the attached
peripheral hardware.  It can generate pulses and decode quadrature encoders
all inhardware with no CPU cycles. The chips themselves are selling for
about $15 so a user level retail product might be cheap.   STM has a
history of selling subsidized development board at lowe cost.These will
be sold in large numbers

The first boards are on sale now.  The lowest spec one has pretty good
performance including gigabit Ethernet and HDMI video for $70.  For another
$30 they add a phone-sized touch screem WiFi and Bluetooth.

Read the specs here, very impressive for a low-cost chip


https://www.cnx-software.com/2019/02/21/stmicro-stm32mp1-cortex-a7-m4-mpu/

I have always thought the best machine controller would be some combo of
Linux with a uP and then the user interface would run on a tablet with a
touch screen with an option to use multiple screensThis would enable
that kind of design. The peripheral hardware, (that would be quadrature
decoders, hardware PWM and analog I/O)  would make this as fast as an FPGA
based controller but it runs Linux on the same chip so the communications
is easy

On top of all this STM is very supportive of developers and maintains
compilers and IDE and the Linux OS images.



On Tue, May 14, 2019 at 4:57 PM Alan Condit  wrote:

> Chris and Gene,
>
> I just went to the dlidirect.com  website and
> clicked on the “Full Developer Kit” pull down, it showed out of stock when
> I looked but while I was on the page looking I got a invitation to chat
> box. I asked whether you could order the developers kit through the website
> or if you had to buy it through Amazon. The chat person said give me a call
> and posted their phone number. They said they had a limited number of
> developer kits in stock but the price was now $119 plus $20 shipping. So, I
> placed an order and was told that it will ship tomorrow.
>
> Assuming that I didn’t get scammed, I should have it in a few days.
>
> Alan
>
> > From: Chris Albertson 
> > Subject: Re: [Emc-users] Atomic pi
> > Date: May 13, 2019 at 9:58:57 PM PDT
> > To: "Enhanced Machine Controller (EMC)"  >
> >
> >
> > I looked at their web site.  About $108 for the full developer kit but
> you
> > get two units, the pwr supply, and a camera.   It's a fantastic deal but
> > they are sold out.  They say "restocking now" and to buy them on Amazon.
> >
> > $108 for two is a great deal.
> >
> > On Mon, May 13, 2019 at 9:21 PM Gene Heskett 
> wrote:
> >
> >> On Monday 13 May 2019 11:43:56 pm jeremy youngs wrote:
> >>
> >>> https://dlidirect.com/products/atomic-pi?fbclid=IwAR0k6hdGM6u1RJSVNLPn
> >>> kMxKnkg6CfnWs1szLEF9zhEj2YDZB0Z_PaWxVpQ
> >>>
> >>> Any trying this ?
> >>>
> >> Not yet, sure looks interesting though. What does the whole kit, bob and
> >> pdu shown cost?
> >>
> >> Maybe it could be our next D525MW but with an spi interface to a 7i90HD?
> >>
> >> 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 
>
> ___
> Emc-users mailing list
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> https://lists.sourceforge.net/lists/listinfo/emc-users
>


-- 

Chris Albertson
Redondo Beach, California

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Re: [Emc-users] Wanted, small engine whiz

[Dave Cole]

Whoops, I meant Onan.

Dave
On 6/5/2019 9:55 AM, Todd Zuercher wrote:

If this is turning into a small engine clinic, I have an old (late '70s vintage) Onan 
NHCV engine that is giving me huge problems.  The "V" in NHCV means that this 
engine sucks, quite literally in more ways than one.  It is a vacuum cooled engine, where 
the flywheel sucks the air over the engine to cool it instead of blowing.   Long story 
short, it spit out one of its exhaust valve seats, I'm guessing from inadequate cooling.  
I've tried to peen the seat back in, but I still have to lap the valve and adjust the 
valve lash, before trying to start it.

I'd love to repower it with something else, but unfortunately in this 
application (a skid loader) it isn't very practical without major modification 
to convert it to using a conventional air cooled engine.  What would really be 
nice would be one of those little water cooled Kawasaki V-twins, but the $2k 
price tag is a little more than I can stomach right now.  (for the 3 or 4 times 
a year I might use the thing.)

Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-Original Message-
From: Chris Albertson 
Sent: Tuesday, June 04, 2019 10:09 PM
To: Enhanced Machine Controller (EMC) 
Subject: Re: [Emc-users] Wanted, small engine whiz

I had the same thing happen to a car a long time ago,  Back when I worked
on them myself.   It ran on five cylinders and the 6th one had a tiny hole
in it and it acted like a pump to pressurize the crankcase.That is the
only way to explain oil shooting out the crankcase:  Somehow cylinder
compression is getting in around the pistons.   You will be able to see it
with the head removed. Yes, it could be a head gasket if compression gets into 
an oil passage that leads back to the crankcase.

As for garden tools.  All my gas powered stuff is gone.  I'm 100% electric.  It 
is all battery powered.  Zero maintenance and they always work.  My next car 
will be electric too.

On Tue, Jun 4, 2019 at 3:17 PM Gene Heskett  wrote:


Greetings all;

A month ago my old JD rider was running clean and did the front yard
nicely, then I had a water leak and used it to stretch out a coil of
3/4" plastic to reach from the meter into the house.  Has been sitting
there in the open gate to the back yard, gas shut off, tank nearly full.

So yesterday I tried to start it, but everytime I get it to a throttle
where it will mow, 3 seconds later a huge cloud of oil smoke and it
dies, repeat till the battery is wiped out.

Get up this morning, check the oil & its 1/2" overfull???  Put the
medium sized automatic charger on it for about 4 hours while I go get
a few things from the grocery store and stop at Fred's place & make a
deal on a Craftsman about 10 years old, a 46" with a hydraulic tranny
and a 26 hp v-twin to spin it, comes with a new deck and some wheel
weights but it will take Fred 3 days or so to get it ready to load.
His grandboy help is fishing in Canada. $850.

Come back, pull the carb and clean it, put it back totether, fires
right at about a 600 rev idle. Left the cleaner off because its oil soaked.???

Let it idle while I corral tools, come back and going to cut about 1/4
of the back yard. Wind it up to about 2500 & start to engage the deck.
geiser of oil shoots about 4 feet up in the air out of the crankcase
vent hose.

Also looks like small leak in head gasket below the exhaust valve. Par
for the course for a Briggs & this one says 11 hp.

So it looks like I deal for the bigger craftsman, The $16 question is
whats most likely wrong with the engine? This,I'm guessing is more
than a head gasket. But is it worth tearing down to see?

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] Wanted, small engine whiz

[Dave Cole]

If your Wisconsin throws the seat again...

I'd consider the Harbor Freight big V twin they sell.
They have been used on smaller skid loaders.
Check out youtube.
I think with a collection of coupons you can get one for about $600.

Dave

On 6/5/2019 9:55 AM, Todd Zuercher wrote:

If this is turning into a small engine clinic, I have an old (late '70s vintage) Onan 
NHCV engine that is giving me huge problems.  The "V" in NHCV means that this 
engine sucks, quite literally in more ways than one.  It is a vacuum cooled engine, where 
the flywheel sucks the air over the engine to cool it instead of blowing.   Long story 
short, it spit out one of its exhaust valve seats, I'm guessing from inadequate cooling.  
I've tried to peen the seat back in, but I still have to lap the valve and adjust the 
valve lash, before trying to start it.

I'd love to repower it with something else, but unfortunately in this 
application (a skid loader) it isn't very practical without major modification 
to convert it to using a conventional air cooled engine.  What would really be 
nice would be one of those little water cooled Kawasaki V-twins, but the $2k 
price tag is a little more than I can stomach right now.  (for the 3 or 4 times 
a year I might use the thing.)

Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-Original Message-
From: Chris Albertson 
Sent: Tuesday, June 04, 2019 10:09 PM
To: Enhanced Machine Controller (EMC) 
Subject: Re: [Emc-users] Wanted, small engine whiz

I had the same thing happen to a car a long time ago,  Back when I worked
on them myself.   It ran on five cylinders and the 6th one had a tiny hole
in it and it acted like a pump to pressurize the crankcase.That is the
only way to explain oil shooting out the crankcase:  Somehow cylinder
compression is getting in around the pistons.   You will be able to see it
with the head removed. Yes, it could be a head gasket if compression gets into 
an oil passage that leads back to the crankcase.

As for garden tools.  All my gas powered stuff is gone.  I'm 100% electric.  It 
is all battery powered.  Zero maintenance and they always work.  My next car 
will be electric too.

On Tue, Jun 4, 2019 at 3:17 PM Gene Heskett  wrote:


Greetings all;

A month ago my old JD rider was running clean and did the front yard
nicely, then I had a water leak and used it to stretch out a coil of
3/4" plastic to reach from the meter into the house.  Has been sitting
there in the open gate to the back yard, gas shut off, tank nearly full.

So yesterday I tried to start it, but everytime I get it to a throttle
where it will mow, 3 seconds later a huge cloud of oil smoke and it
dies, repeat till the battery is wiped out.

Get up this morning, check the oil & its 1/2" overfull???  Put the
medium sized automatic charger on it for about 4 hours while I go get
a few things from the grocery store and stop at Fred's place & make a
deal on a Craftsman about 10 years old, a 46" with a hydraulic tranny
and a 26 hp v-twin to spin it, comes with a new deck and some wheel
weights but it will take Fred 3 days or so to get it ready to load.
His grandboy help is fishing in Canada. $850.

Come back, pull the carb and clean it, put it back totether, fires
right at about a 600 rev idle. Left the cleaner off because its oil soaked.???

Let it idle while I corral tools, come back and going to cut about 1/4
of the back yard. Wind it up to about 2500 & start to engage the deck.
geiser of oil shoots about 4 feet up in the air out of the crankcase
vent hose.

Also looks like small leak in head gasket below the exhaust valve. Par
for the course for a Briggs & this one says 11 hp.

So it looks like I deal for the bigger craftsman, The $16 question is
whats most likely wrong with the engine? This,I'm guessing is more
than a head gasket. But is it worth tearing down to see?

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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