[OP]
Friend of the Creek
The CO2 was way too slow for a project I have coming up, so I decided to test the 50 watt Fiber on one of these. I was very impressed with the results. Had to run the Fiber at a VERY slow speed, but compared to a CO2 at that same speed it's still lighting fast. Just 3 minutes for this one. I think it would have done even better had it been properly cleaned.
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Tim
There are Big Brain people & Small Brain people. I'm one of the Big Brains - with a lot of empty space.- me
50W Fiber - Raycus/MaxPhotonics - It's a metal eating beast!
Epilog Fusion M2 50/30 Co2/Fiber - 2015
Epilog Mini24 – 35watt - 2006 (Original Tube)
Ricoh SG3110DN
- Liberty Laser LLC
I did a few stones, and a piece of slate that the co2 wouldn't touch. Fiber actually did decent. Thanks for posting. Is that normal paver?
Woodworking, Old Tools and Shooting
Ray Fine RF-1390 Laser Ray Fine 20watt Fiber Laser
SFX 50 Watt Fiber Laser
PM2000, Delta BS, Delta sander, Powermatic 50 jointer,
Powermatic 100-12 planer, Rockwell 15-126 radial drill press
Rockwell 46-450 lathe, and 2 Walker Turner RA1100 radial saws
Jet JWS18, bandsaw Carbide Create CNC, RIA 22TCM 1911s and others
Contributor
I've never had a reason to engrave rock or stone, other than a couple of black granite pieces a few years ago, the results of which were ho-hum. Never thought about trying the fiber...
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ELEVEN - rotary cutter tool machines
FOUR - CO2 lasers
THREE- make that FOUR now- fiber lasers
ONE - vinyl cutter
CASmate, Corel, Gravostyle
[OP]
Friend of the Creek
It's out of a building that was torn down. They are going to be engraved & installed on a memorial at that site. BTW, most pavers are made of cement, they don't engrave worth a crap. You need real clay to get that black glassy look.Originally Posted by John Lifer
Tim
There are Big Brain people & Small Brain people. I'm one of the Big Brains - with a lot of empty space.- me
50W Fiber - Raycus/MaxPhotonics - It's a metal eating beast!
Epilog Fusion M2 50/30 Co2/Fiber - 2015
Epilog Mini24 – 35watt - 2006 (Original Tube)
Ricoh SG3110DN
Yeah, your right, wrong term, cement won't do with any laser well.
Member
Nice job Tim! Would you mind sharing your 50w fiber settings? I tried a clay with my new 30w and it came out great with that nice glassy look. Then... I wasn't thinking and grabbed a standard red block to make a sign for my in-laws. While it vitrified design, by the time it was all done it reminded me of one of those color blindness charts with the numbers on the middle. The in-laws couldn't read it. Lol. I think the clay I ran was around 100mm/s 90p 20khz 150ns. The concrete I had to drop to 50mm/s 90p 20khz 250ns to get true verification.
Member
That looks good Tim. Nice depth. I recently finished a large job for our local hospital, where they had about 300 old clay bricks salvaged from the historic hospital (now demolished) that was built in 1890. They had me engrave donor names on all of them for a new memorial garden path.
Was fortunate to find that I could get that black glassy look with my 80W CO2. I really wasn't sure what I'd get until I put one of them under the laser. Worked out well, actually had some depth to it.
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Last edited by Don Corbeil; 01-24-2018 at 8:55 PM.
Don Corbeil
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