It’s a pulse, between pulses there is no energy produced at the work surface. That’s one of the reasons interval change alone can change the results…
One of the reasons it’s called a pulse laser.
Thanks Jack.
Just got finished reading this post you also had input too. Most interesting read!..sorry it was closed yesterday or I would have posted my appreciation.
The pic’s were great and the bits about the jig setup…software & physical opened up new understandings and file transfer bit was great also. I was intuitively modelling as I read and got some bits right…as I read further.
It did feel at one point, where the burn mark (crescent/oval) was still not optimum, but was acceptable as there were bigger fish to fry…at that time.
Can a Gaussian be applied to Z axis over pulse duration as well as across xy…if that makes sense?
I will study pulse between pulse…and also (MOPA).
Thanks.
Keep a general idea how they work, then you can dive deeper if you wish. Technology will always be far ahead of you …
The basics of a beam are here
Along with the applications, further down in the wiki. It’s quite extensive… maybe it’ll answer your questions more precisely.
Have fun…
incidentally, it’s very cool that from CorelDRAW, dxf files are already transferred by layers. We usually have a lot of layers and often had to transfer them in parts, because other programs lagged and closed.
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Would transfer speed also be a factor as well as signal bleedover ‘line insulation’, physical conection quality and translation between program languages.
I ask because I built an analogy (before reading about lens refraction) of a stream of signals ‘photons’ traveling at the same rate as material absorbency/induction rate. This I imagined would cause an ideal burn spot, and if moving…an deal line, & if not the buffrering/lag effect may cause the ‘photons/energ’ to cascade and cause a change in trajectories resulting in a ‘Halo/splash’.
But then I read about lens refraction, and I must ask, if the beam is cone shaped to its waist…then equal and opposite after waist, or are the lines of defraction always terminating beyond the diameter of the beam along its length.
Why are packets of data more secure in transit than a continuous stream, such as the layers transfer by corelDRAW.dfx…lag problem.
@Deepspace, could you describe this in more detail?
What do I do to create the layer structure in Corel Draw?
Anything special need to be done to have the layers in the DXF?
each layer/vector/color should not intersect each other. The colors go close to each other. Background filling of the blank is allowed so that the color engraving fits better…
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Absoloutely fantastic, I am assuming that you are cutting your own ti blans as I never seen such shape.
Yes, I have a laser metal cutter. When cutting titanium, there are also nuances.
Do you have a good source for the blanks? Any business card blanks?
I cut them myself, in almost any shape. Of course, I prefer titanium or stainless steel with a high titanium content (aisi316T).
Awesome! Thanks for the aisi316T info, that might be the best of both worlds. One problem is finding good colours, but the real problem is finding colours that don’t corrode in a few days.
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Is it known how the colours corrode.
News to me… Since oxidation is corrosion and the process is heat driven, I’d think it would be stable until you re-heat the metals…
A link to this information would be nice…
Went looking, found something else
https://www.sciencedirect.com/science/article/abs/pii/S0030399224007436
“Laser-induced color reversal on metal surfaces in acetic acid solution”
tl;dr is that you can more effectively erase and re-color a titanium substrate in an acetic acid solution.
Interesting, but it appears that the processes are directed at commercial products such as electronics. It also seems to target what they call erase and re-color.
They mention…
The color difference ΔEab between the erased area and original metal surface is around 1.4, which shows almost no difference to the naked eyes.
Most of these was beyond my understanding, but it doesn’t seem to apply to hobby type applications.
Oxidation coloration hue change due to environmental causes of degradation.
Plasmonic coloration is more resistant to change as nanoparticles are buried deeper in surface of metal.
Nano second is less susceptible to change but environmental conditions may have some effect over time.
Thank’s Ai.!
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I haven’t posted our work for a long time. Here.
Titanium, some mate colors.
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