On Tue, 8/13/13, TJoseph Powderly wrote:
Subject: Re: [Emc-users] How to test brush type DC servo motors?
To: "Enhanced Machine Controller (EMC)"
Date: Tuesday, August 13, 2013, 11:35 PM
On 08/14/2013 12:26 AM, Gregg
Eshelman wrote:
> I want to see if my motors will run. How do I identif
On 14 August 2013 10:29, Gregg Eshelman wrote:
>
> That's why I snagged that one motor for $299, because it matched the
> other table motor and was at a sane price instead of being priced as if it
> was a rare antique vase.
http://www.ebay.co.uk/itm/Two-SEM-MT-Servo-Motors-CNC-axis-motors-/121
On 14 August 2013 04:54, Todd Zuercher wrote:
>
> It is the main chip on a large dimmer board, it is used for some of the
> sanctuary lighting at my church.
>
Who made the dimmer? I know a chap who used to be a service engineer for
Polaron...
--
atp
If you can't fix it, you don't own it.
http:
JT
What is the correct way to calculate the drill sizes please. I will do
the metric table but I just need to know what is the right way.
On 2013/08/13 04:30 PM, John Thornton wrote:
> Oh I forgot to mention I converted the first line of each type of tap as
> an example.
>
> JT
>
> On 8/13/2013 9
Thanks, but Rob did the conversion last night and now I'm adding metric
fine and metric coarse to it.
The metric side will need to be checked for accuracy as soon as I'm done.
JT
On 8/14/2013 5:34 AM, Marius Liebenberg wrote:
> JT
> What is the correct way to calculate the drill sizes please. I
Ok, good. I will help with checking once you are done.
On 2013/08/14 12:47 PM, John Thornton wrote:
> Thanks, but Rob did the conversion last night and now I'm adding metric
> fine and metric coarse to it.
>
> The metric side will need to be checked for accuracy as soon as I'm done.
>
> JT
>
> On
On 14 August 2013 10:49, andy pugh wrote:
> Who made the dimmer? I know a chap who used to be a service engineer for
> Polaron...
He thinks it is probably an alternistor triac, and that something from
here would be a substitute.
http://www.littelfuse.com/data/en/Data_Sheets/E4AlternistorTriac.pd
On 14 August 2013 12:18, andy pugh wrote:
> http://www.littelfuse.com/data/en/Data_Sheets/E4AlternistorTriac.pdf
I guess it makes sense to go for the biggest?
http://www.digikey.com/product-detail/en/Q4040K7TP/Q4040K7TP-ND/216027
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.
On 14 August 2013 12:24, andy pugh wrote:
> On 14 August 2013 12:18, andy pugh wrote:
>
>> http://www.littelfuse.com/data/en/Data_Sheets/E4AlternistorTriac.pdf
>
> I guess it makes sense to go for the biggest?
> http://www.digikey.com/product-detail/en/Q4040K7TP/Q4040K7TP-ND/216027
>
> --
> atp
>
Hi
> I guess it makes sense to go for the biggest?
> http://www.digikey.com/product-detail/en/Q4040K7TP/Q4040K7TP-ND/216027
Not necessarily. TRIACs require a minimum latching current to flow
through it, otherwise they will switch off to early after triggering.
For the types in question this curr
Marcus;
Thinking about it, and reading about the G92 command, I think that the G92
might be a better solution for what I want to do, (which is just machine a
bunch of identical parts on a sheet of brass).
I had thought that setting up an array of "fixtures" would be the solution,
but I think the
On Wednesday 14 August 2013 11:52:41 Gregg Eshelman did opine:
> On Tue, 8/13/13, TJoseph Powderly wrote:
>
> Subject: Re: [Emc-users] How to test brush type DC servo motors?
> To: "Enhanced Machine Controller (EMC)"
> Date: Tuesday, August 13, 2013, 11:35
> PM
>
> On 08/14/2013 12:26 AM, G
On Wednesday 14 August 2013 12:14:20 andy pugh did opine:
> On 14 August 2013 12:18, andy pugh wrote:
> > http://www.littelfuse.com/data/en/Data_Sheets/E4AlternistorTriac.pdf
>
> I guess it makes sense to go for the biggest?
> http://www.digikey.com/product-detail/en/Q4040K7TP/Q4040K7TP-ND/21602
On Wednesday 14 August 2013 12:22:50 andy pugh did opine:
> On 14 August 2013 12:24, andy pugh wrote:
> > On 14 August 2013 12:18, andy pugh wrote:
> >> http://www.littelfuse.com/data/en/Data_Sheets/E4AlternistorTriac.pdf
> >
> > I guess it makes sense to go for the biggest?
> > http://www.digi
Hello!
I have a question about motor position feedback to this servo drive:
http://www.zappautomation.co.uk/en/cd-range/322-cd420-0075-0039-aa-000.html
Its manual is available here:
http://www.zappautomation.co.uk/en/attachment.php?id_attachment=57
The thing is that page 20 lists pin names on the
Gregg Eshelman wrote:
> I want to see if my motors will run. How do I identify the motor wires VS the
> tachometer wires so I can hook up to a DC power supply just to see if they'll
> run?
>
Does it have brush caps? Take a brush out, then the one that is
open-circuit is the one with the missi
John Alexander Stewart wrote:
> Marcus;
>
> Thinking about it, and reading about the G92 command, I think that the G92
> might be a better solution for what I want to do, (which is just machine a
> bunch of identical parts on a sheet of brass).
>
> I had thought that setting up an array of "fixture
Gregg Eshelman wrote:
>
> The existing servo amps are Fenner SDF1525-12 I've found some things on the
> web where those have been used with modern control hardware. Could be that
> finding just one of those will cost less than three new(er) ones and having
> to change the power supply too.
>
> C
2013/8/14 Jon Elson
> John Alexander Stewart wrote:
> > Marcus;
> >
> > Thinking about it, and reading about the G92 command, I think that the
> G92
> > might be a better solution for what I want to do, (which is just machine
> a
> > bunch of identical parts on a sheet of brass).
> >
> > I had th
On 14 August 2013 17:43, Viesturs Lācis wrote:
> I would appreciate any reasonable suggestions, what are those U,V and W
> signals from encoders! :)
Almost certainly commutation signals for the drive.
There are quite a few 6-channel encoders out there (often called
"commutation encoders")
They
Viesturs;
> Jon, docs do not say anything about L word in G92 command. Is that just a
> small typo?
>
pre-coffee typo.
Essentially what I want to do is to make 9 copies of a shape, and, thought
"if I make 9 imaginary fixtures, I can simply change to the next fixture
and machine the part again"
Of course, if you think like a programmer and don't want to know
anything about G92 or stuff like that, you just write a gcode subroutine
to make the part. The subroutine takes two arguments, the X and Y
coordinates of the (center, edge, whatever) the part.
Then call the subroutine once for ea
On 14 August 2013 19:16, Kenneth Lerman wrote:
> Of course, if you think like a programmer and don't want to know
> anything about G92 or stuff like that, you just write a gcode subroutine
> to make the part. The subroutine takes two arguments, the X and Y
> coordinates of the (center, edge, what
2013/8/14 andy pugh
>
> The first thing that the sub does is G92 the as-called position to
> zero, then it cuts the shape, then it clears the G92 offset.
Thank you! I do not know, why I did not think about clearing that offset
right in subroutine, so that all the coordinates remain untouched in
I do the same thing on my plasma cutter, jog to the start point and use
the G92 magic.
JT
On 8/14/2013 1:45 PM, andy pugh wrote:
> On 14 August 2013 19:16, Kenneth Lerman wrote:
>
>> Of course, if you think like a programmer and don't want to know
>> anything about G92 or stuff like that, you ju
The SEM MT30H44's motors I have use a white terminal under the rear end
cap. To answer you previous question on the tach leads .. they
typically go back to the tach inputs on the amp.
Ah! Drive terminals are marked A1 & A2 and tach terminals are marked
T1 & T2. :-)
On the mazak I just put a 12
On Wed, 2013-08-14 at 12:02 -0500, Jon Elson wrote:
> Gregg Eshelman wrote:
> >
> > The existing servo amps are Fenner SDF1525-12 I've found some things on the
> > web where those have been used with modern control hardware. Could be that
> > finding just one of those will cost less than three ne
Greetings all;
I just got back from Staples, where I picked up off the shelf, a microsoft
LifeCam that claimed to do true hidef, marked $99 on the shelf, rang up for
$40.29 at the register.
On getting it home and the packaging demolished, I plugged it into a usb
hub and lo, and behold even hot
On Wed, 8/14/13, Marius Liebenberg wrote:
Subject: Re: [Emc-users] Tapping G code
To: emc-users@lists.sourceforge.net
Date: Wednesday, August 14, 2013, 4:34 AM
JT
What is the correct way to calculate the drill sizes please.
I will do the metric table but I just need to know what is the ri
There I'd a oword subroutine in the wiki that jepler wrote for me several
years back. Basically a rectangular array that you spec rows, columns,
offset distance s and finally the code. I tweaked a copy to read a gcode
part file.
Used numerous times to cut out Xmas ornaments several years in a row
On 15 August 2013 02:02, Gregg Eshelman wrote:
> How about just going to Google and searching for a metric tap drill chart?
It's actually very easy. For a metric thread the tapping drill is the
nominal thread diameter - pitch.
M6 x 1 ? 5mm tapping drill.
M10 x 1.75? 8.2mm tapping drill.
--
a
The dimmer was made by Precolite Controls
- Original Message -
From: "andy pugh"
To: "Enhanced Machine Controller (EMC)"
Sent: Wednesday, August 14, 2013 5:49:12 AM
Subject: Re: [Emc-users] Help IDing this chip (off topic)
On 14 August 2013 04:54, Todd Zuercher wrote:
>
> It is the ma
John Alexander Stewart wrote:
> Viesturs;
>
>
>
>> Jon, docs do not say anything about L word in G92 command. Is that just a
>> small typo?
>>
Yup, I got G92 and G10 mixed up.
Jon
--
Get 100% visibility into Java/
Thanks a lot to everyone who has tried to help me.
I think I am going to try to get one of these, and see if it works.
http://www.mouser.com/Search/ProductDetail.aspx?R=Q4025J6virtualkey5761virtualkey576-Q4025J6
It at least looks like the old one. I am kind of guessing on every thing else.
@ Greg
I need to know how to do it. Otherwise I have learned nothing here. And
if I have learned nothing I can teach nothing. :)
On 2013/08/15 03:02 AM, Gregg Eshelman wrote:
> On Wed, 8/14/13, Marius Liebenberg wrote:
>
> Subject: Re: [Emc-users] Tapping G code
> To: emc-users@lists.sourcef
Now would that be a 50% or 75% thread. JT's tables needs both. One for
softer metals and the other for the harder stuff.
On 2013/08/15 03:19 AM, andy pugh wrote:
> On 15 August 2013 02:02, Gregg Eshelman wrote:
>
>> How about just going to Google and searching for a metric tap drill chart?
> It'
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