Making a knurled texture with fiber laser engraving

#fiberlaser #laserengraving #knurling
I turned some brass knobs on the lathe and used the fiber laser to engrave a knurling pattern on them. They're about 19mm (3/4") diameter and have a M4 thread down the middle. The wavy pattern, although it looks cool, isn't actually very grippy - the diamond pattern is much better.

[@thelouiebrand]

I need this in my life. So amazing!

[@BOGONGMACHINERY]

Amazing Laser Work Lindsay 👏

[@zaprodk]

Those sounds :)

[@MilanKarakas]

Beautiful! Just beautiful!

[@imajeenyus42]

Thank you!

[@rotate85]

Sweet!

[@sto2779]

Can you try making GPU/CPU water block micro fins used for liquid water cooling? I wonder if fiber laser is better than micro saw cutting on precision CNC mill.

[@imajeenyus42]

I don't think so - the fiber always produces a wall taper angle of about 10-15 degrees, so that will limit the depth/width aspect ratio of any slots or grooves.

[@sto2779]

@@imajeenyus42 Thanks for the reply. Interesting, didn’t know that, good to know.

[@nicolasbelokurov8891]

Great work, what was the final depth and how long did it take?

[@imajeenyus42]

Thanks. Maybe around 0.5mm deep and took about 30min.

[@nicolasbelokurov8891]

@@imajeenyus42 thanks, have to try it

[@hassiaschbi]

Nice! But these geometries can be cut with knurling Tool. You should be able to do a design that ist not just a repetition of the same geometry. Like an organic wavy pattern, or a fractal.
I like your content!

[@imajeenyus42]

Thanks! I do have a clamp knurling tool but it's rather crap ;-) Unfortunately, the way the rotary works, it's best suited to repetitive patterns like this - other sorts require a different way of engraving which takes a lot longer.

[@horrorhotel1999]

Givem the specs on this machine, I am pretty sure you should be able to engrave vinyl records with it.
I'd be curious to hear if the noises it makes doing that would correlate in any way with the audio being engraved.

[@imajeenyus42]

I think the surface would be too rough to get clean sound - although the detail is very fine, the surface finish produced by the laser is like a sandblasted finish. Regarding the audio, people have actually made the laser play tunes as it's engraving ;-) Here's one example - ruclips.net/video/FENROFZd9nE/видео.html

[@mecheng84]

can you tell the difference between the surface between knurled with a tool vs knurled with the laser?

[@imajeenyus42]

A knurling tool produces more of a pointed pattern, like pyramids. The laser is flatter.

[@mecheng84]

@imajeenyus42 thanks !!

[@nukert658]

is this how the aliens communicate?

[@Yorumcu63]

Great work What is average working life of this laser ? How many hour ? and what is new lamp price (or new parts )

[@imajeenyus42]

Thanks! I've seen 100,000 hours quoted as lifespan. It's not a lamp-pumped laser, it's a fiber laser. Overall system cost is maybe $5000-$6000.

[@semidemiurge]

What wattage? what laser are you using?

[@imajeenyus42]

60W JPT M7 with a 112x112mm lens. The laser system is from Bogong CNC.

[@seesone8035]

@@imajeenyus42 nice work !