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Picengraver
26-10-2013, 09:02 PM
Laser diode (445) engraved on Baltic Birch Plywood using gcode generated by PicEngrave Pro 4.

Engraved at a 45°angle with .006 inch raster line spacing. Original engraving size 6 x 8 inches.

John Champlain
PicEngrave CNC Image Engraving Software (http://www.picengrave.com)

10507

Picengraver
28-10-2013, 07:37 PM
I engraved this one today. Same settings as above.
John Champlain

10511

Picengraver
08-11-2013, 01:44 PM
For those who may have interest, the link below is to a short video of laser diode engraving. Gcode generated by PicEngrave Pro 4+Laser (PicEngrave CNC Image Engraving Software (http://www.picengrave.com))


http://youtu.be/LlDgTUm8Fi0

Thank You,
John Champlain

Boyan Silyavski
13-02-2014, 03:56 PM
Great. How i make one to myself, the laser i mean?

EddyCurrent
13-02-2014, 04:00 PM
I think if you search about there are details of using a diode from an old CD or Blue Ray player.

Boyan Silyavski
13-02-2014, 05:12 PM
I searched, and reread some info many times, though as i am messed up with other projects, if there was a laser diode kit i would buy it for saving time.

But the results amaze me. Really.

Picengraver
13-02-2014, 08:02 PM
silyavski,

Thank you for your interest and compliments.

There really are no "kits" that I know of, but reading the 'Laser Diode Setup" paper posted on my web site (PicEngrave CNC Image Engraving Software (http://www.picengrave.com)) will perhaps be a good start.

Afterwards, please let me know if you have more questions.

Best Regards,
John Champlain

EddyCurrent
13-02-2014, 08:53 PM
There really are no "kits" that I know of, . . .

Maybe that's what you need to do then, make up and sell some kits.

Picengraver
14-02-2014, 12:06 AM
Thank you, I have considered it, but I've already retired twice now, and just not sure I'm up to the challenge now of starting another business venture this late in life. That's something for a younger and more energetic person.:joyous:
John

JJWMACHINECO
19-02-2014, 01:45 PM
Hi everyone,

John invited me here to join this forum and his discussion about laser diode engraving. I own a CNC machine shop in Florida and me and my son developed this analog modulation laser diode engraving process using standard g-codes in Mach3 a year and a half ago. We started out using PhotoVcarve as our image to g-code program, but determined that it had it's limitations for laser diode engraving.

Thanks to John's hard work and considerable Beta testing between us both, he has updated his Picengrave Pro image to g-code program to become a very unique, one of kind software that enhances this LD engraving process considerably. It has options for 4th axis rotary, TTL, variable feedrate, and spindle type of engravings like Lithophanes all in one program also.

Thanks John for being so patient with me and implementing all the program change requests I threw at you!! :thumsup:

Here is one of my favorite mirror engravings done with his excellent program using analog modulation. It is possible to get shades on mirrors using a laser diode and PEP 4 where a dithered 1bit image using a pulsed CO2 laser can't.

Jeff

EddyCurrent
19-02-2014, 09:00 PM
Any info on the lased diode side of things ? such as what's required and how it goes together ?

JJWMACHINECO
19-02-2014, 09:58 PM
Here is some information on the setup. http://www.picengrave.com/Laser%20Setups.pdf

If you want to read how it all started from the beginning and follow how it progressed to what we are doing now, there is allot of information in these threads. These forum posts is how most everything is documented. I even have to go back to them at times for reference.


Vectric Forum • View topic - Can PhotoVcarve be used to Laser engrave on a CNC Router???? (http://forum.vectric.com/viewtopic.php?f=16&t=13405)


Vectric Forum • View topic - Not Just Another Laser Engraving with PVC (http://forum.vectric.com/viewtopic.php?f=16&t=15161)


Diode Lasers. - Oldal 3 - FĂłrum (http://hobbycncart.com/forum/63-151-3)


PicDither - PicEngrave - PicLaser. - FĂłrum (http://hobbycncart.com/forum/63-236-1)


Jeff

JJWMACHINECO
24-12-2015, 04:17 PM
Happy Holidays

andy_con
26-12-2015, 11:58 AM
what are you engraving, wood or steel?

JJWMACHINECO
26-12-2015, 04:45 PM
On wood with a laser diode.

andy_con
26-12-2015, 10:05 PM
a 445nm laser is pretty good for burning/marking wood.

you can get single mode 445 diodes which have a better beam but are lower powered or high powered diodes but they are multi modal and don't have good beams. you would need to do some testing to determine which diodes and lens combination give the best results.

google dtr lasers he sells diodes and lens

JJWMACHINECO
26-12-2015, 10:12 PM
a 445nm laser is pretty good for burning/marking wood.

you can get single mode 445 diodes which have a better beam but are lower powered or high powered diodes but they are multi modal and don't have good beams. you would need to do some testing to determine which diodes and lens combination give the best results.

google dtr lasers he sells diodes and lens

I guess you did not realize we are the experts in this field. Go to our web site and check it out. https://picengrave.com

andy_con
26-12-2015, 10:19 PM
your on photonlexicon forum and so am I ;-)

andy_con
26-12-2015, 11:12 PM
http://www.photonlexicon.com/forums/showthread.php/20162-CNC-Laser-Engraving-8bit-Shades-of-Grey-445nm

JJWMACHINECO
27-12-2015, 12:31 AM
Yep, that's me. :beer: