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Post pictures of your machine. Someone may be able to identify it and help you. Otherwise no one really can help you easily.

I experienced the same issue with an old Acer laptop. Turned out to be a bad (burned) connection between the inverter and where the screen bulbs connect, which was not repairable in my case. I...

No, the laser should burn through the coating and remove the silvering.

Yes, on the back (be sure to flip your image). I usually spray a clear coat (polyurethane or lacquer) after engraving. Use care to not wipe the back after engraving and before clear coating,
John...

Depth looks like 38D to me. :wee:
John

Thank you Jeff. You are a true artist and inovator, and I am privileged and proud to call you my friend.
John

columbus1231,

Please contact me off list if you are still wanting software. I have new software (PicLaser Lite) available that works with Arduino.

Best Regards.
John Champlain
picengrave AT...

Thanks Jep,
I'll give the PVC a try. I think there is some at a local home supply.
John

Thank you, Jep,
I wish I had a thousand customers like you :).

Do you have a link to the PVC material? I'd like to try some.

John

:cheers:

Jep,
Thanks very much for your compliment re: PEP. I really appreciate it. I have spent literally thousands of hours working on the program, and with Jeff's guidance ( actually badgering is...

I did some of these last week for church members. About 1.5 inch square. Two minutes. Maple wood.

Regards All,
John Champlain

I did this keepsake box today for a Christmas present. The engraving, while not evident in the photo, is about 1/64" to 1/32" deep, and very sharp edged. All done with the 2 watt 445 Laser diode as...

Thanks Jeff,
Super neat machine. The vacuum/laser safety shield setup is really neat.
John

Here is a link to short video of PicEngrave Pro generated gcode engraving an image. ( IMG 0517 - YouTube )
John Champlain

Thanks Jeff,
Amazing detail and shading.

Just loaded my shotgun - going out looking for a white cow. :D
John

This image was laser diode engraved today on Baltic Birch plywood with .006 inch pixel spacing. The gcode genetated by PicEngrave Pro 4 +
Laser Ver. 4.2.3, combines variable laser diode power and...

All,
A new update of PicEngrave Pro is now available via eBay, with many features specifically for laser diode engraving.
citrusguy | eBay

A special thanks to jeffery926 for all his support and...

Jeff,
Perhaps something like this will interest and encourage you.
Burned with a 445nm laser diode - glass lens - homemade cnc machine.
Cut from 1/16 in. basswood. Had to burn from both sides.
...

Thank you all,
I appreciate your input. For now, I have set aside rotary work in order to have time to make Christmas gifts for family and friends. As I work on this project later, I will post my...

Thanks Gerry.
I am not sure melting is the cause, but my present bit is leaving lots of "fuzzies" on the final image that degrade the work. Perhaps the bit is not cutting properly. I am running...

I have built a cnc "lathe" to engrave cylinders, and I am seeking advice on the type of bits to use to engrave lithophanes on PVC pipe. I have tried 30° V bits, but results are dismal due to the PVC...