Hello everybody,
I would like to make a parallel port demux to transfer data from fpga. I wrote
a simple hal component that has one data input signal and 3 select input
signals. And another hal component, a simple binary counter that increment the
output binary signal every base-thread period.
On Nov 13, 2012, at 2:39 PM, Viesturs Lācis wrote:
> 2012/11/13 Peter C. Wallace :
>>
>> You can sense ferror or PID output (on a torque mode drive)
>> on a voltage mode drive like the 7I39, ferror (and a slow move
>> against a resiliant stop) is probably the best route for
>> "switchless" limit
Greetings,
I was thinking of controlling my CO2 laser intensity using the Z value in the
G-Code.
Maybe I could use 0-1 for 0% to 100% percent, or perhaps 0-255.
I have a Pico Systems DAC board that outputs 0-5 volts that in turn will
control the laser power from 0 to 100%.
Can anyone suggest
On Nov 13, 2012, at 2:08 PM, Viesturs Lācis wrote:
> I somehow had skipped the fact that encoders on servos have
> differential signal output, but 7i39 cards expect single-ended signal.
> Since that is plasma machine with all the noise from plasma, I do not
> think that using only half of the dif
On Thursday 15 November 2012 17:31:52 Ralph Stirling did opine:
> The AS5306 gives an index pulse every 2.4mm (pole pitch
> of the magnetic strip). This is unlikely to be useful in most
> of our applications. Any type of real index you will have to
> supply separately.
>
> -- Ralph
I see, than
On 15 November 2012 20:18, Gene Heskett wrote:
> Not quite Andy, this kit is missing the index pulse wiring.
Index is of limited use on a linear encoder anyway, I suspect.
I have a number of magnetic crank position wheels in my desk at work,
I really ought to start experimenting.
--
atp
If yo
On Thu, 15 Nov 2012, Gene Heskett wrote:
> On Thursday 15 November 2012 15:00:09 Richard Ray did opine:
>
>> On Thu, 15 Nov 2012, andy pugh wrote:
>>> On 15 November 2012 19:13, wrote:
How might I connect this, or something similar, via a parallel port
inexpensively, no MESA, to provid
The AS5306 gives an index pulse every 2.4mm (pole pitch
of the magnetic strip). This is unlikely to be useful in most
of our applications. Any type of real index you will have to
supply separately.
-- Ralph
From: Gene Heskett [ghesk...@wdtv.com]
Sent: Thu
On Thursday 15 November 2012 15:17:28 andy pugh did opine:
> On 15 November 2012 19:36, Richard Ray wrote:
> > The "this" above was suposed to be http://wiki.makerbot.com/mle
> > Had a brain fart
>
> So, you need to connect it to the parallel port then run an encoder HAL
> module. That appears t
On Thursday 15 November 2012 15:00:09 Richard Ray did opine:
> On Thu, 15 Nov 2012, andy pugh wrote:
> > On 15 November 2012 19:13, wrote:
> >> How might I connect this, or something similar, via a parallel port
> >> inexpensively, no MESA, to provide feedback for a stepper all running
> >> linu
On Thu, 15 Nov 2012, andy pugh wrote:
> On 15 November 2012 19:36, Richard Ray wrote:
>
>> The "this" above was suposed to be http://wiki.makerbot.com/mle
>> Had a brain fart
>
> So, you need to connect it to the parallel port then run an encoder HAL
> module.
> That appears to be all there is t
On Thu, 15 Nov 2012, Ralph Stirling wrote:
> The AS5306 magnetic encoder module A and B outputs
> will certainly connect to the the parallel port fine. You
> can configure Hal to do quadrature decoding from the
> parallel port, but your linear stage can't go very fast.
> The AS5306 has 40 pulses
On 15 November 2012 19:36, Richard Ray wrote:
> The "this" above was suposed to be http://wiki.makerbot.com/mle
> Had a brain fart
So, you need to connect it to the parallel port then run an encoder HAL module.
That appears to be all there is to it.
--
atp
If you can't fix it, you don't own it
The AS5306 magnetic encoder module A and B outputs
will certainly connect to the the parallel port fine. You
can configure Hal to do quadrature decoding from the
parallel port, but your linear stage can't go very fast.
The AS5306 has 40 pulses / 2.4mm = 16.7 pulses/mm.
If I recall correctly, Linux
On Thu, 15 Nov 2012, andy pugh wrote:
> On 15 November 2012 19:13, wrote:
>> How might I connect this, or something similar, via a parallel port
>> inexpensively, no MESA, to provide feedback for a stepper all running
>> linuxcnc
>
> Is it quadrature output?
>
Yes
The "this" above was suposed t
On 15 November 2012 19:13, wrote:
> How might I connect this, or something similar, via a parallel port
> inexpensively, no MESA, to provide feedback for a stepper all running
> linuxcnc
Is it quadrature output?
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
---
How might I connect this, or something similar, via a parallel port
inexpensively, no MESA, to provide feedback for a stepper all running
linuxcnc
Richard
--
Monitor your physical, virtual and cloud infrastructure from
Gentlemen,
infinite (or 1000 lines) should be the default set up - only if the
program/job requires a different (exact stop?) should the mode be chosen -
preferably by g code but maybe some other method (switch/button or config
file)
thanks
Stuart
just my
--
dos centavos
-
On 15 November 2012 14:27, jeremy youngs wrote:
> does lcnc not already have infinite lookahead?
In some ways, yes. In the ways that matter, no.
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
---
does lcnc not already have infinite lookahead?
--
jeremy youngs
--
Monitor your physical, virtual and cloud infrastructure from a single
web console. Get in-depth insight into apps, servers, databases, vmware,
SAP, clou
I am not sure how to add this to the wiki, and I don't realy have the time to
spend figuring it out.
One thing I would like to see is an option to remove the stop at end of next
line limit and read ahead more lines. Make it be able to stop by the end of
the last line read, or the end of the c
Hi,
> I am sorry, but I have difficulties finding that wiki page. Chris, any
> chance for a link? Thanks!
this should be the one:
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Lncnc_3_Idea_Whiteboard
It is the first entry in "Recent Changes":
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?RecentChanges
Che
I am sorry, but I have difficulties finding that wiki page. Chris, any
chance for a link? Thanks!
Viesturs
2012/11/15 Chris Morley :
>
> I started a wiki page as a reference / scratch pad of ideas for linuxcnc 3.
> It would be best to add your two cents here so things are not forgotten
> and are
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