All you really need to change PWM to volts is a simple RC filter.
But really this is a silly design. Think about it, there is a floating
point number in the LCNC computer so this gets converted to some integers
that set the timers that create a square wave. Then this is filtered to
charge a
>
> About the purchase, I would love to have the converter ready to use but
> shipping cost to Argentina and taxes for something that little would be
> ridiculously high. I see if I can find some arduino or PIC module ready to
> use here, if not I'll have to make my own.
>
I meant, something that
>
> I found a firmware file on the mesa website that traded the 6th
> stepgen for a pwm. You can get a module on ebay for about $12 that
> converts that to 0-10v. Just set mine up that way and it's working
> great..
Hi Joel,
Well, the one in the forum uses P1 for the PWM output so all the
It is hard to beat GT2. It is the current state of the art in belt-tooth
profile. (except for the identical G3)
But if you are using a belt, then just buy a $30 Omron encoder. No need to
build one as it would be hard to make a better encoder. I doubt you could
make an encoder as small and
>
> Have you actually tried to feed a software PWM into the analogue input?
> They are usually filtered well enough to do that by filtering to the
> average of a fast PWM. I have a huan yang clone on my 6040 I did that
> with for a couple months before I found we had an rs485 driver that
> worked
Hi Jeremie,
Sure. Here it is.
https://forum.linuxcnc.org/38-general-linuxcnc-questions/43088-mesa-7i95-use-6-axis-generate-0-10v-spindle-output
El vie, 1 abr 2022 a las 13:41, Jérémie Tarot ()
escribió:
> Le ven. 1 avr. 2022 à 16:47, Leonardo Marsaglia a
> écrit :
>
> > I found a topic on the
I found a firmware file on the mesa website that traded the 6th
stepgen for a pwm. You can get a module on ebay for about $12 that
converts that to 0-10v. Just set mine up that way and it's working
great..
Joel
On Fri, Apr 1, 2022 at 1:03 PM gene heskett wrote:
>
> On Friday, 1 April 2022
There has been some good info on how to build an encoder on this thread. My
concern is how to couple an encoder to my mill spindle. Due to the mill design
it doesn't seem feasible to attach the encoder directly to the spindle so I
will need to use a belt drive. The spindle runs at up to 10500
Hi Dominic,
It would seem to me that if your goal is to teach vets how to retrofit
or build cnc machine tools, you would do well to use current technology
that they could obtain to perform jobs after they are done with your
program.
Currently available hardware for LinuxCNC use is primarily
Mesa
The point of your organization is teaching and education?
Do you want to teach people about the way things were or about the way
things will be?
Recreating 40-year-old parts is not the direction I would head if I were
interested in learning and teaching. Skills like programming an N/C
machine
And ... just bear in mind that the STG II card was ISA bus (good luck
finding anyone making those anymore) and is now 20 years old ... for a
couple of hundred bucks you can buy an equivalent and modern Mesa card that
is fully supported, PCI bus, etc.
Whilst it would not be impossible to build an
Did you contact the copyright holders for the STG cards and ask them if you
can manufacture the product? That would be your first step.
On Fri, 1 Apr 2022 at 19:58, Dominic Francisco wrote:
> Big Howdy to the Group:
> Our 501, C-19 non-profit, veteransinitiatives.org, is a small school,
>
Big Howdy to the Group:
Our 501, C-19 non-profit, veteransinitiatives.org, is a small school,
composed of MilVets who have defended this priceless Nation.
Our backrouinds include : Machining, Founding, Patternmaking,
Metallurgy, Physical Chemistry, Heat Treat, Ceramics: a bunch of
On Friday, 1 April 2022 09:51:50 EDT Leonardo Marsaglia wrote:
> Hi guys, I hope you're all doing well
>
> Quick question to define a little issue I have. I purchased a VFD that
> I wrongly thought had a pulse train input for speed reference. Turns
> out that feature it's optional so I need an
Le ven. 1 avr. 2022 à 16:47, Leonardo Marsaglia a
écrit :
> I found a topic on the forum with a firmware that PCW gently made so that
> would solve the problem. I'll try it out when I get home. Sorry for that!
Would you mind sharing the link to the post please ?
I was about to suggest using
I found a topic on the forum with a firmware that PCW gently made so that
would solve the problem. I'll try it out when I get home. Sorry for that!
El vie, 1 abr 2022 a las 10:51, Leonardo Marsaglia ()
escribió:
> Hi guys, I hope you're all doing well
>
> Quick question to define a little issue
Hi guys, I hope you're all doing well
Quick question to define a little issue I have. I purchased a VFD that I
wrongly thought had a pulse train input for speed reference. Turns out that
feature it's optional so I need an additional card to have it. By the way
this Simphoenix E280/E580 VFD can
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