Re: [Emc-users] LinuxCNC simulator

[Feral Engineer]

For the time being, I would just install the official release iso and use
that.

Phil T.
The Feral Engineer

Check out my LinuxCNC tutorials, machine builds and other antics at
www.youtube.com/c/theferalengineer

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On Tue, Mar 15, 2022, 7:31 PM Thaddeus Waldner  wrote:

> Hi,
>
> I would like to set up a linuxcnc vm box for simulation/training in my
> classroom. What is the easiest way to do that and not have to mess with
> special kernels?
>
> I have access to a local exsi server so it would be a small matter to run
> an .iso. I also have a Debian bullseye vm running on it now, which I use
> for projects like this.
>
> Thanks
>
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[Emc-users] LinuxCNC simulator

[Thaddeus Waldner]

Hi,

I would like to set up a linuxcnc vm box for simulation/training in my 
classroom. What is the easiest way to do that and not have to mess with special 
kernels?

I have access to a local exsi server so it would be a small matter to run an 
.iso. I also have a Debian bullseye vm running on it now, which I use for 
projects like this.

Thanks

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Re: [Emc-users] Q for Peter?

[gene heskett]

On Monday, 14 March 2022 20:21:30 EDT gene heskett wrote:
> On Monday, 28 February 2022 20:11:35 EDT gene heskett wrote:
> > Greetings Peter;
> > 
> > The 7i76 has, I recall reading, the ability to do analog to digital
> > conversions on the first 4 of its inputs. But the full scale range is
> > 36 volts if I recall right.  I don't recall the bit range, though,
> > whether its 8 bit, or 16.
> > 
> > Would it be possible to lower the full scale range to 0-5 volts with
> > a
> > firmware change?
> > 
> > I have acquired a couple pressure sensors rated at 0-10 psi with a 5
> > volt input, .5 to 4.5 volt outbut and want to use them to monitor,
> > and
> > control the speed by pwm means as the mister(s) only need 3 or 4 psi
> > to do their job if the nozzle is close enough to the cutting face.
> > Inch or so.
> 
> And neither of those worked at all, so I bought a couple MAP sensors,
> and when I dl the data sheets, I find they have a fairly high src
> resistance which limits the outut current to about .1 milliamps, with
> an analog voltage swing from typically .2 volts at a very good vacuum,
> to around 4.8 volts at 36.? PSIA. No digital, but an analog output.
> 
> Your A/D's on the first 4 inputs of a 7i76D would need more than the .1
> ma at full scale, so my next search then is for a single supply op-amp
> running on the motor voltage of 42 volts? (or more)
> 
> Well filtered of coarse.
> 
> > Thanks Peter, take care and stay well.

How about this one:



running on a filtered leg of the 42 volt motor psu?

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, 1940)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis





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