Viesturs,
if your laser seems too bulky - have you tried transporting the beam to
the work head via optic fibres? In the laser division of my former
company, we had several powerful (many, say, 50 watts output) gold vapor
ans other lasers that weighed about a ton each and filled a whole
2012/1/29 Peter Blodow p.blo...@dreki.de:
Viesturs,
if your laser seems too bulky - have you tried transporting the beam to
the work head via optic fibres?
The laser itself is less than 100g, so that is not the problem.
The machine itself has heavy construction as its primary task is wood
On 28 January 2012 06:23, Viesturs Lācis viesturs.la...@gmail.com wrote:
BTW client was happy, when he saw the first hand-burned lines in the
wood that I managed to do last night in that small moment, when the
laser was working...
Can I suggest two other options?
1) Put the existing laser
On 01/27/2012 10:23 PM, Viesturs Lācis wrote:
2012/1/28 Rafael Skodlarra...@linwin.com:
Of course that won't work with most if not all the suggestions I've seen
so far. If I understand it correctly, your laser already has a circuit
to drive it at reasonable current to do it's magic.
Circuit
2012/1/26 Kirk Wallace kwall...@wallacecompany.com:
On Thu, 2012-01-26 at 08:40 +0200, Viesturs Lācis wrote:
An off-the-shelf solid state relay might do the job too.
The relay was my first idea, but it turned out pretty quickly that
there are no such relays that could be driven directly by
Viesturs,
it seems to me that your laser diode is just acting as a normal LED,
not as a laser. This state is only achieved at a very distinct point up
on top of the voltage/current curve. The laser diode supply electronics
must take care of this which is a rather delicate controlling task. In
On Friday, January 27, 2012 10:07:52 AM Viesturs Lācis did opine:
2012/1/26 Kirk Wallace kwall...@wallacecompany.com:
On Thu, 2012-01-26 at 08:40 +0200, Viesturs Lؤپcis wrote:
An off-the-shelf solid state relay might do the job too.
The relay was my first idea, but it turned out pretty
2012/1/27 Peter Blodow p.blo...@dreki.de:
Viesturs,
it seems to me that your laser diode is just acting as a normal LED,
not as a laser. This state is only achieved at a very distinct point up
on top of the voltage/current curve. The laser diode supply electronics
must take care of this which
On Friday, January 27, 2012 12:08:34 PM Viesturs Lācis did opine:
2012/1/27 Peter Blodow p.blo...@dreki.de:
Viesturs,
it seems to me that your laser diode is just acting as a normal LED,
not as a laser. This state is only achieved at a very distinct point
up on top of the voltage/current
On Fri, 2012-01-27 at 16:55 +0200, Viesturs Lācis wrote:
2012/1/26 Kirk Wallace kwall...@wallacecompany.com:
On Thu, 2012-01-26 at 08:40 +0200, Viesturs Lācis wrote:
An off-the-shelf solid state relay might do the job too.
The relay was my first idea, but it turned out pretty quickly
2012/1/27 gene heskett ghesk...@wdtv.com:
Is there perchance an adjustment potentiometer? The LM317T is a linear
regulator device and could be made adjustable so as to compensate for the
wiring and switching loss in your controller.
Nope, I see 2 resistors in series for the middle leg.
For those following this thread, just a reminder of what I think
Viesturs has.
eBay laser with controller:
http://www.ebay.com/itm/Industrial-808nm-800mw-Infrared-Focusable-Laser-Diode-Module-Cutter-w-TTL-/180781956841?pt=LH_DefaultDomain_0hash=item2a1771bee9#ht_2189wt_1080
Short URL:
On 27 January 2012 18:12, Kirk Wallace kwall...@wallacecompany.com wrote:
For those following this thread, just a reminder of what I think
Viesturs has.
eBay laser with controller:
http://www.ebay.com/itm/Industrial-808nm-800mw-Infrared-Focusable-Laser-Diode-Module-Cutter-w-TTL-/180781956841
2012/1/27 andy pugh bodge...@gmail.com:
On 27 January 2012 18:12, Kirk Wallace kwall...@wallacecompany.com wrote:
For those following this thread, just a reminder of what I think
Viesturs has.
eBay laser with controller:
On Friday, January 27, 2012 01:36:21 PM Viesturs Lācis did opine:
2012/1/27 gene heskett ghesk...@wdtv.com:
Is there perchance an adjustment potentiometer? The LM317T is a
linear regulator device and could be made adjustable so as to
compensate for the wiring and switching loss in your
On Friday, January 27, 2012 01:50:53 PM Kirk Wallace did opine:
For those following this thread, just a reminder of what I think
Viesturs has.
eBay laser with controller:
http://www.ebay.com/itm/Industrial-808nm-800mw-Infrared-Focusable-Laser-
On Friday, January 27, 2012 01:52:19 PM andy pugh did opine:
On 27 January 2012 18:12, Kirk Wallace kwall...@wallacecompany.com
wrote:
For those following this thread, just a reminder of what I think
Viesturs has.
eBay laser with controller:
On Friday, January 27, 2012 01:53:39 PM Viesturs Lācis did opine:
2012/1/27 andy pugh bodge...@gmail.com:
On 27 January 2012 18:12, Kirk Wallace kwall...@wallacecompany.com
wrote:
For those following this thread, just a reminder of what I think
Viesturs has.
eBay laser with
2012/1/27 gene heskett ghesk...@wdtv.com:
That depends. Can, if you just short your device, burn wood? If not, or
only very much slower than you expected, then the wire is too small.
I could. Now it seems that my diy stopped working again - laser
receives ~3V DC regardless of the state of
2012/1/27 gene heskett ghesk...@wdtv.com:
On Friday, January 27, 2012 01:53:39 PM Viesturs Lācis did opine:
2012/1/27 andy pugh bodge...@gmail.com:
On 27 January 2012 18:12, Kirk Wallace kwall...@wallacecompany.com
wrote:
For those following this thread, just a reminder of what I think
On Friday, January 27, 2012 02:29:30 PM Viesturs Lācis did opine:
2012/1/27 gene heskett ghesk...@wdtv.com:
That depends. Can, if you just short your device, burn wood? If not,
or only very much slower than you expected, then the wire is too
small.
I could. Now it seems that my diy
On Friday, January 27, 2012 02:31:36 PM Viesturs Lācis did opine:
2012/1/27 gene heskett ghesk...@wdtv.com:
On Friday, January 27, 2012 01:53:39 PM Viesturs Lؤپcis did opine:
2012/1/27 andy pugh bodge...@gmail.com:
On 27 January 2012 18:12, Kirk Wallace
kwall...@wallacecompany.com
On Fri, 2012-01-27 at 12:26 -0500, gene heskett wrote:
The LM317T is a linear regulator device
and could be made adjustable so as to compensate for the wiring and
switching loss in your controller.
Judging from Viesturs' description in a later message:
Nope, I see 2 resistors in series for
On 01/27/2012 11:07 AM, Viesturs Lācis wrote:
2012/1/27 gene heskettghesk...@wdtv.com:
That depends. Can, if you just short your device, burn wood? If not, or
only very much slower than you expected, then the wire is too small.
I could. Now it seems that my diy stopped working again -
2012/1/28 Rafael Skodlar ra...@linwin.com:
Of course that won't work with most if not all the suggestions I've seen
so far. If I understand it correctly, your laser already has a circuit
to drive it at reasonable current to do it's magic.
Circuit I suggested earlier was under assumption you
2012/1/20 Kirk Wallace kwall...@wallacecompany.com:
On Fri, 2012-01-20 at 10:39 -0800, Kirk Wallace wrote:
On Fri, 2012-01-20 at 10:42 +0200, Viesturs Lācis wrote:
... snip
Kirk, I repasted Your scheme here:
http://picpaste.com/scheme-3V0w43QM.png
... snip
Revised schematic attached.
On 25 January 2012 19:41, Kirk Wallace kwall...@wallacecompany.com wrote:
On Wed, 2012-01-25 at 17:06 +0200, Viesturs Lācis wrote:
... snip
I tested by connecting/disconnecting 4N25 pin1 to GND and measured the
voltage on laser power pins.
Do you mean pin 2? Shorting pin 2 to ground
2012. gada 25. Jan. 18:55 Roland Jollivet roland.jolli...@gmail.com
rakstīja:
On 25 January 2012 19:41, Kirk Wallace kwall...@wallacecompany.com
wrote:
On Wed, 2012-01-25 at 17:06 +0200, Viesturs Lācis wrote:
... snip
I tested by connecting/disconnecting 4N25 pin1 to GND and measured the
On Wed, 2012-01-25 at 19:52 +0200, Roland Jollivet wrote:
... snip
By the way, you are using a PNP package for a NPN device. Be sure to
change it before doing a layout.
Regards
Roland
Uugh, that's embarrassing. I got the part number from Viesturs' e-mail
reply, just pasted it in and didn't
Ok, now I got it.
Thank You, Kirk, for explanatory scheme!
Thank You, Roland, for pointing it out.
I will try in to resolder within next few hours and report back.
Viesturs
2012. gada 25. Jan. 19:19 Kirk Wallace kwall...@wallacecompany.com
rakstīja:
On Wed, 2012-01-25 at 19:52 +0200, Roland
On Wed, 2012-01-25 at 10:17 -0800, Kirk Wallace wrote:
... snip
I suppose the BD139 could be made to work, but I would need to build the
circuit to say anything with confidence. See attached.
... snip
I suppose being able to use SPICE would help. Maybe I'll learn to use it
in another life.
On 25 January 2012 20:17, Kirk Wallace kwall...@wallacecompany.com wrote:
On Wed, 2012-01-25 at 19:52 +0200, Roland Jollivet wrote:
... snip
By the way, you are using a PNP package for a NPN device. Be sure to
change it before doing a layout.
Regards
Roland
Uugh, that's
2012. gada 25. Jan. 19:39 Roland Jollivet roland.jolli...@gmail.com
rakstīja:
Haha. Sorry, it's funny. The BD139 is a NPN, so the position was right,
but
the symbol should have been changed from PNP to NPN. Otherwise, you can
leave the new drawing as is, but label it as a BD138.
The BD138
2012/1/25 Viesturs Lācis viesturs.la...@gmail.com
2012. gada 25. Jan. 19:39 Roland Jollivet roland.jolli...@gmail.com
rakstīja:
Haha. Sorry, it's funny. The BD139 is a NPN, so the position was right,
but
the symbol should have been changed from PNP to NPN. Otherwise, you can
leave
2012. gada 25. Jan. 20:18 Roland Jollivet roland.jolli...@gmail.com
rakstīja:
2012/1/25 Viesturs Lācis viesturs.la...@gmail.com
2012. gada 25. Jan. 19:39 Roland Jollivet roland.jolli...@gmail.com
rakstīja:
Haha. Sorry, it's funny. The BD139 is a NPN, so the position was
right,
2012/1/25 Kirk Wallace kwall...@wallacecompany.com:
On Wed, 2012-01-25 at 21:16 +0200, Roland Jollivet wrote:
... snip
All I'm saying is;
BD138 is PNP
BD139 is NPN
Just make sure that the symbol used matches the description, otherwise if
you automatically place the part, you'll have the
On 25 January 2012 21:07, Viesturs Lācis viesturs.la...@gmail.com wrote:
Kirk, I am getting totally confused...
What is the difference in schematics between both images in Your last
email? I cannot see any...
The direction the arrow points in the transistor schematic symbol.
--
atp
The idea
2012/1/25 andy pugh bodge...@gmail.com:
On 25 January 2012 21:07, Viesturs Lācis viesturs.la...@gmail.com wrote:
Kirk, I am getting totally confused...
What is the difference in schematics between both images in Your last
email? I cannot see any...
The direction the arrow points in the
On Wed, 2012-01-25 at 23:07 +0200, Viesturs Lācis wrote:
... snip
Kirk, I am getting totally confused...
Sorry about that.
What is the difference in schematics between both images in Your last
email? I cannot see any...
NPN Not Pointing iN
|/ Collector
Base ---|
|\
On Wed, 2012-01-25 at 23:43 +0200, Viesturs Lācis wrote:
2012/1/25 andy pugh bodge...@gmail.com:
On 25 January 2012 21:07, Viesturs Lācis viesturs.la...@gmail.com wrote:
Kirk, I am getting totally confused...
What is the difference in schematics between both images in Your last
email? I
2012/1/26 Kirk Wallace kwall...@wallacecompany.com:
On Wed, 2012-01-25 at 23:43 +0200, Viesturs Lācis wrote:
2012/1/25 andy pugh bodge...@gmail.com:
On 25 January 2012 21:07, Viesturs Lācis viesturs.la...@gmail.com wrote:
Kirk, I am getting totally confused...
What is the difference in
On 01/25/2012 01:43 PM, Viesturs Lācis wrote:
2012/1/25 andy pughbodge...@gmail.com:
On 25 January 2012 21:07, Viesturs Lācisviesturs.la...@gmail.com wrote:
Kirk, I am getting totally confused...
What is the difference in schematics between both images in Your last
email? I cannot see
On Thu, 2012-01-26 at 08:40 +0200, Viesturs Lācis wrote:
... snip
Ground is shared on both sides, because 5V and 12V are supplied by PC's PSU.
Is there a simple way I can drive that transistor without optoisolator?
I think you could add a smaller transistor in place of the
opto-isolator. See
2012/1/20 kqt4a...@gmail.com:
Could you provide details about the laser
Manufacturer is www.kalecnc.com
Purchased from them on ebay:
On Friday, January 20, 2012 12:07:16 PM Viesturs Lācis did opine:
2012/1/20 Kirk Wallace kwall...@wallacecompany.com:
On Thu, 2012-01-19 at 17:32 -0500, Przemek Klosowski wrote:
On Thu, Jan 19, 2012 at 5:08 PM, Viesturs Lؤپcis
viesturs.la...@gmail.comwrote:
Hello, folks!
I would
2012/1/20 gene heskett ghesk...@wdtv.com:
The rest if this modified drawing looks as if it should fly.
Ok, thanks! I will try to resolder and test it. In case of any
difficulties, I will report back :))
Viesturs
--
On Fri, 2012-01-20 at 10:42 +0200, Viesturs Lācis wrote:
... snip
Kirk, I repasted Your scheme here:
http://picpaste.com/scheme-3V0w43QM.png
Do I understand that includes also Steve's and Przemek's sugestions,
if R2 is 200 ohm?
The optoisolator is 4N25, the transistor is BD139.
Gene, I
2012/1/20 Kirk Wallace kwall...@wallacecompany.com:
On Fri, 2012-01-20 at 10:39 -0800, Kirk Wallace wrote:
On Fri, 2012-01-20 at 10:42 +0200, Viesturs Lācis wrote:
... snip
Kirk, I repasted Your scheme here:
http://picpaste.com/scheme-3V0w43QM.png
... snip
Revised schematic attached.
On Fri, 2012-01-20 at 21:05 +0200, Viesturs Lācis wrote:
2012/1/20 Kirk Wallace kwall...@wallacecompany.com:
On Fri, 2012-01-20 at 10:39 -0800, Kirk Wallace wrote:
On Fri, 2012-01-20 at 10:42 +0200, Viesturs Lācis wrote:
... snip
Kirk, I repasted Your scheme here:
On Thu, Jan 19, 2012 at 5:08 PM, Viesturs Lācis viesturs.la...@gmail.comwrote:
Hello, folks!
I would appreciate some advice or insights, what am I doing wrong.
What I want to do is to switch on and off a power to laser engraver diode.
It needs 12 VDC supply and it consumes ~1 A currrent.
...@gmail.com]
Sent: Thursday, January 19, 2012 5:33 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] DIY output driver
On Thu, Jan 19, 2012 at 5:08 PM, Viesturs Lacis
viesturs.la...@gmail.comwrote:
Hello, folks!
I would appreciate some advice or insights, what am I doing
On Thursday, January 19, 2012 07:27:22 PM Viesturs Lācis did opine:
Hello, folks!
I would appreciate some advice or insights, what am I doing wrong.
What I want to do is to switch on and off a power to laser engraver
diode. It needs 12 VDC supply and it consumes ~1 A currrent.
Here is
52 matches
Mail list logo
