Machsupport Forum
General CNC Chat => Show"N"Tell ( What you have made with your CNC machine.) => Topic started by: Picengraver on January 14, 2013, 08:02:37 PM
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Lasered at 27 ipm, 1.4 amps diode current.
Dithered with PicDither - Gcode with PicEngrave Pro 4.
John Champlain
www.picengrave.com
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This is a mirror lasered with a negative image like a lithophane.
John
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Hi John,
These is are nice. Thanks for posting. What's the material in the first one?
Dan
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Excellent work John.
Wait till Zoltan sees those ;D ;D
Tweakie.
(Just a note for others that follow - modern mirrors, depending on their origin, are almost always 'Lead-free' but precautions should always be taken to avoid inhaling the dust / fumes produced when working with all mirrors).
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Hi John,
These is are nice. Thanks for posting. What's the material in the first one?
Dan
Hi, Dan, John may correct me if I'm wrong, but I believe that is a mirrored tile with beveled edges.
Really nice work there, John, very slick for sure-
Dave
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Thanks Friends,
Dan, I used identical mirrors for both engravings. They are sold for decorative candle bases.
As quickly becomes obvious if you try, mirrors are very difficult to photograph without distracting reflections, hence the first photo's appearance. I had to take it at an angle and and convert it to gray scale to minimize reflections.
John
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Thanks for explaining, John. Obviously mirrors are tough to photograph as I would have never thought the first one was a mirror.
Dan
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Similar matter has already been discussed at yahoo answers. I can post the link if needed
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Please, and Thank you.
John
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Made some simple display stands today for laser diode engraved mirrors. Red oak with clear lacquer. Tomorrow I will laser a design and my logo on them.
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Nice, and will be very effective, but why use expensive brass when you could use wood dowels to match, and then you wouldn't need rubber boots that may "eat" into the silver if left on there too long touching in the same spot?
Just throwing that out there as I've seen how rubbery plastics and other materials not play nice together. ;)
Dave
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Dave,
Much appreciated. Wood dowels were my first choice, but I'm 20 miles away from a supply, so I just substituted what was on hand. I plan to make more for gifts and will certainly use oak dowels.
John
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I did a test to see how much detail and how small of text I could engrave with my 445nm laser diode using John's program PicEngrave Pro 4 Laser Edition on some Birch Ply. This engraving is 7.38" X 9.66" and the smallest text is .032" tall and I ran my laser by using analog modulation to vary the power, not TTL. I would say my test was very successful as it is clearly legible. This is a very good indication of the precision his program can generate the g-code for fine laser engravings like this.
My hat off to you John.
Jeff
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Not sure how I missed your first ones John.............. Bravo fellas................Bravo! That's amazing detail Jeff.
Brett
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Thanks Brett,
I have to say also, thank you John for your excellent image to g-code engraving software!!
Jeff
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Thanks very much Brett. I'm very pleased that Jeff likes my program, but he is a little too modest. Jeff has the eyes and hands of an artist, plus the skills of a master machinist. He is a true artisan who is expanding cnc laser art at a rapid pace. Most of us attempting laser diode art are always behind him trying to catch up.
My Best to All,
John Champlain
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For those Mach3 users interested in image engraving with laser diodes, I have written a brief paper describing how Jeff Woodcock, I, and others are setting up our control systems for use with Mach3. Although some specific references are made to my program, PicEngrave Pro, some are also achieving good results with other image to gcode programs, such as Vectric's PhotoVCarve.
The PDF file can be found here: http://www.picengrave.com/Laser%20Setups.pdf
John Champlain
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Thanks John, nice write up. I may never get time to play with this but I sure hope I do.
Brett
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Thanks John, nice write up. I may never get time to play with this but I sure hope I do.
Brett
I understand, Brett. I had to retire to find enough time. Busier now than when I was working, but also happier. ;>)
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I engraved this yesterday with a development version of my PicEngrave Pro 4 program (of course :D ) on Baltic birch plywood with 2 watt laser diode.
John Champlain
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Excellent work John - it just keeps getting better and better.
Tweakie.
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Thank you Tweakie.
Much Appreciated,
John
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I did this one today for the Brits here.
2 watt laser diode, .006 pixel resolution, 45° angle engraving 75 ipm max.
John Champlain
(http://)
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Nice one John :)
Tweakie.
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Here is a short video for those of you interested in laser diode engraving.
http://youtu.be/LlDgTUm8Fi0
John Champlain
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Lasered at 27 ipm, 1.4 amps diode current.
Dithered with PicDither - Gcode with PicEngrave Pro 4.
John Champlain
www.picengrave.com
Can you use Laser diode to cut 1/4" wood? Am looking switching to Laser instead of a router
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Can you use Laser diode to cut 1/4" wood? Am looking switching to Laser instead of a router
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Sorry, a laser diode does not have enough power to cut wood that thick. A CO2 laser is required for that.
Merry Christmas,
John Champlain
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Very nice John! I watched the video and liked it a lot. Comparing it to a lithophane....... not much of a comparison at all. With the laser you get a lot better speeds, no tool load or wear or dust. This is the slickest way I way seen to machine an image.
Brett
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Thank you, Brett,
But I need to make note that Jeff Woodcock (member JJWMACHINECO) is the inventor and master of laser diode image engraving technology. Without his spearheading development and his constant experimenting, we would all still be laser engraving images with TTL dithered images, ala CO2 lasers.
Thanks Jeff, and Merry Christmas and Happy New Year,
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PicEngrave Pro Version 4.2.5 now produces gcode for rotary engraving directly from an image - no conversion programs needed.
Best Regards All,
John Champlain
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Thank you John for your kind words.
If it wasn't for you and your excellent image to g-code program, I sure would not been able to get as far as I have with my experimentation. ;)
PVC sure was a dead end road for me and no where else to go! :P
Jeff
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I engraved this yesterday. The original is 9 x 7 inches, and took right at 3 hours.
John Champlain
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Excellent work John. ;)
Tweakie.
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Thank you, Tweakie. Your compliment is much valued.
John