On Apr 9, 2012, at 10:33 PM, Jon Elson wrote:
> Jeshua Lacock wrote:
>>
>> I guess the problem is I don't know all the terminology.
>>
>> Yes, I guess that is correct. I assume the 'open-loop steppers or servos
>> with LinuxCNC closing the loop' is the best setup? For instance, that would
>>
Andy Pugh wrote:
> On 9 Apr 2012, at 18:05, Jeshua Lacock wrote:
>
>
>> So I had assumed that it was based on the encoder resolution.
>>
>
> It possibly is, but indirectly. It may be that the drives move one encoder
> count per input step, so with high encoder resolution you run out of in
On 9 Apr 2012, at 18:05, Jeshua Lacock wrote:
>
> So I had assumed that it was based on the encoder resolution.
It possibly is, but indirectly. It may be that the drives move one encoder
count per input step, so with high encoder resolution you run out of input (to
the drive) step rate.
>
Jeshua Lacock wrote:
> In other words, if issuing pulses to the Gecko was not a bottleneck, how fast
> can the Geckos count the encoder lines - as fast as needed?
>
I think that is 250,000 counts/second.
Jon
--
Bette
Jeshua Lacock wrote:
>
> I guess the problem is I don't know all the terminology.
>
> Yes, I guess that is correct. I assume the 'open-loop steppers or servos with
> LinuxCNC closing the loop' is the best setup? For instance, that would allow
> the fastest control, and double as a DRO when the po
On Apr 9, 2012, at 4:41 PM, Andy Pugh wrote:
> On 9 Apr 2012, at 13:09, Jeshua Lacock wrote:
>
>> All I know is I only have enough pulse bandwidth to run my servos quite
>> slow. I thought this was based on how fast my computer can send pulses to
>> the Geckos.
>
> If the drive is set to 100
On Apr 9, 2012, at 3:40 PM, Andy Pugh wrote:
> On 9 Apr 2012, at 11:20, Jeshua Lacock wrote:
>
>> I have two wires from my power source connected to the Geckos, two wires
>> from the geckos to power the motor, the common wire, 5v and ground for the
>> encoder, then encoder A/B going to the Ge
On 9 Apr 2012, at 13:09, Jeshua Lacock wrote:
> All I know is I only have enough pulse bandwidth to run my servos quite slow.
> I thought this was based on how fast my computer can send pulses to the
> Geckos.
If the drive is set to 1 pulses per inch and you are using software step
gene
On 9 Apr 2012, at 11:20, Jeshua Lacock wrote:
> I have two wires from my power source connected to the Geckos, two wires from
> the geckos to power the motor, the common wire, 5v and ground for the
> encoder, then encoder A/B going to the Gecko, and step/dir coming from the
> parallel port.
On Apr 9, 2012, at 1:03 PM, Viesturs Lācis wrote:
> 2012/4/9 Jeshua Lacock :
>>
>> On Apr 9, 2012, at 3:16 AM, Viesturs Lācis wrote:
>>
>>> 2012/4/9 Jeshua Lacock :
How is that possible? The encoders are connected to the Geckos, not
through the parallel port
>>>
>>> I do n
2012/4/9 Jeshua Lacock :
>
> On Apr 9, 2012, at 3:16 AM, Viesturs Lācis wrote:
>
>> 2012/4/9 Jeshua Lacock :
>>>
>>> How is that possible? The encoders are connected to the Geckos, not through
>>> the parallel port
>>
>> I do not understand, what exactly is not clear to You :)
>> AFAIK Gecko d
On Apr 9, 2012, at 3:16 AM, Viesturs Lācis wrote:
> 2012/4/9 Jeshua Lacock :
>>
>> How is that possible? The encoders are connected to the Geckos, not through
>> the parallel port….
>
> I do not understand, what exactly is not clear to You :)
> AFAIK Gecko drives will need the encoder signal f
troller (EMC)
> Subject: Re: [Emc-users] Mesa counter card?
>
> 2012/4/9 Jeshua Lacock :
> >
> > How is that possible? The encoders are connected to the
> Geckos, not through the parallel port..
>
> I do not understand, what exactly is not clear to You :)
> AFAIK Gecko
2012/4/9 Jeshua Lacock :
>
> How is that possible? The encoders are connected to the Geckos, not through
> the parallel port….
I do not understand, what exactly is not clear to You :)
AFAIK Gecko drives will need the encoder signal for them to function,
so each encoder signal will have to be spli
On Apr 9, 2012, at 2:03 AM, Viesturs Lācis wrote:
> 2012/4/9 Jeshua Lacock :
>>
>> On Apr 8, 2012, at 7:37 AM, Viesturs Lācis wrote:
>>
>>>
>>> 2012/4/8 Jeshua Lacock :
I was just thinking about the set up as I understand it (i.e. the Mesa
card replacing my parallel port conne
2012/4/9 Jeshua Lacock :
>
> On Apr 8, 2012, at 7:37 AM, Viesturs Lācis wrote:
>
>>
>> 2012/4/8 Jeshua Lacock :
>>>
>>> I was just thinking about the set up as I understand it (i.e. the Mesa card
>>> replacing my parallel port connected directly to the Geckos). It seems like
>>> the encoders woul
On Apr 8, 2012, at 5:43 PM, Peter C. Wallace wrote:
> On Sun, 8 Apr 2012, Jeshua Lacock wrote:
>
>> Date: Sun, 8 Apr 2012 15:14:15 -0600
>> From: Jeshua Lacock
>> Reply-To: "Enhanced Machine Controller (EMC)"
>>
>> To: "Enhanced Machine
On Sun, 8 Apr 2012, Jeshua Lacock wrote:
> Date: Sun, 8 Apr 2012 15:14:15 -0600
> From: Jeshua Lacock
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] Mesa counter card?
>
>
On Apr 8, 2012, at 4:11 PM, Greg Bernard wrote:
> I don't know if you're committed to the Mesa cards yet but have you checked
> out Pico System's step and direction card. It's more expensive but may be a
> better fit for the Gecko drives.
> http://pico-systems.com/osc2.5/catalog/product_info.p
run out before we tackle that. -Thomas Edison, inventor (1847-1931)
>
> From: Jeshua Lacock
>To: Enhanced Machine Controller (EMC)
>Sent: Sunday, April 8, 2012 4:14 PM
>Subject: Re: [Emc-users] Mesa counter card?
>
>
>On Apr 8, 2012
On Apr 8, 2012, at 7:37 AM, Viesturs Lācis wrote:
> 2012/4/8 Jeshua Lacock :
>>
>> I emailed Mesa to inquire about purchasing, and it looks like I would want
>> the firmware set to support the Gecko 540. (that is the only Gecko
>> controller they list support for).
>
> What support in firmwar
2012/4/8 Jeshua Lacock :
>
> I emailed Mesa to inquire about purchasing, and it looks like I would want
> the firmware set to support the Gecko 540. (that is the only Gecko controller
> they list support for).
What support in firmware does one or other particular drive need, if
it is fed only st
On Apr 8, 2012, at 5:10 AM, Jeshua Lacock wrote:
> I was just thinking about the set up as I understand it (i.e. the Mesa card
> replacing my parallel port connected directly to the Geckos). It seems like
> the encoders would have to connect to the Mesa card to benefit from any
> increased encod
On Apr 8, 2012, at 12:35 AM, Andy Pugh wrote:
> On 7 Apr 2012, at 22:06, Jeshua Lacock wrote:
>
>> OK, so I just have to give them a list of how my parallel port pins are
>> connected to my Gecko 320s then?
>
> Basically, yes, though there are a number of other folk who can make
> firmwares
On 7 Apr 2012, at 22:06, Jeshua Lacock wrote:
> OK, so I just have to give them a list of how my parallel port pins are
> connected to my Gecko 320s then?
Basically, yes, though there are a number of other folk who can make firmwares
(including me) and the instructions are on the Wiki. The o
On Apr 7, 2012, at 8:45 PM, Andy Pugh wrote:
> On 7 Apr 2012, at 18:02, Tom Easterday wrote:
>
>> Yes, they are compatible. We run a a 320x with the Mesa 7i43TA card.
>
> I think that is the answer to a slightly different question.
> The 5i23 in the G540 configuration emulates the parallel p
On Apr 7, 2012, at 10:45 PM, Andy Pugh wrote:
>
>
> On 7 Apr 2012, at 18:02, Tom Easterday wrote:
>
>> Yes, they are compatible. We run a a 320x with the Mesa 7i43TA card.
>
> I think that is the answer to a slightly different question.
> The 5i23 in the G540 configuration emulates the par
On 7 Apr 2012, at 18:02, Tom Easterday wrote:
> Yes, they are compatible. We run a a 320x with the Mesa 7i43TA card.
I think that is the answer to a slightly different question.
The 5i23 in the G540 configuration emulates the parallel port pinout that suits
a G540. What this means is that t
Yes, they are compatible. We run a a 320x with the Mesa 7i43TA card.
-Tom
On Apr 7, 2012, at 8:29 PM, Jeshua Lacock wrote:
>
> On Apr 6, 2012, at 1:38 AM, Viesturs Lācis wrote:
>
>> That is why I think that 5i25 card would do much better - less
>> rewiring (actually You might get away with no
On Apr 6, 2012, at 1:38 AM, Viesturs Lācis wrote:
> That is why I think that 5i25 card would do much better - less
> rewiring (actually You might get away with no rewiring at all) and
> there also is price difference. Plug it straight in pci slot and
> attach Your existing lpt cables to it. The o
>> That is why I think that 5i25 card would do much better - less
>> rewiring (actually You might get away with no rewiring at all) and
>> there also is price difference. Plug it straight in pci slot and
>> attach Your existing lpt cables to it. The only thing to do is sort
>> out the firmware - mo
On Apr 6, 2012, at 1:38 AM, Viesturs Lācis wrote:
> 2012/4/6 Jeshua Lacock :
>>
>> Is there anything I will need to order besides the Mesa's 4I30? How simple
>> is it to wire up? I assume the encoder signals go to the Mesa? How are the
>> Geckos wired? What does the parallel port connect to?
>
2012/4/6 Jeshua Lacock :
>
> Is there anything I will need to order besides the Mesa's 4I30? How simple is
> it to wire up? I assume the encoder signals go to the Mesa? How are the
> Geckos wired? What does the parallel port connect to?
I have been using Mesa cards, but I am sticking with pci so
Greetings,
Well my machine is up an running nicely now, but now I want to make it go
faster!
My Z axis is about 10,000 lines per inch, so it uses up my available bandwidth
really fast. Right now I have the Z's max speed set to a mere 3 inches per sec.
My Y is 24 inches per sec, and X is 10 in
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