Hi everyone, for my Thesis I need to have a circle with some pin inside that I want them to be engraved on metal cliche with diffrent engraving depth, circle around 0.03mm and pins around 0.01mm. I already used the power sclale but it does not give me a perfect result, any other advice? thanks in advance
Why do you need them on the same layer? Easy enough to ungroup if necessary and move one or the other to different layer with more passes or power.
Curious about your parameters, what metal/ material are you engraving?
I a little new on how to work with laser, I don’t know if I am doing something wrong or not but when I put them in the different layer then I don’t get any pins because the circle one is being cut deeper than pins. I get a flat surface.
I need to use a really small Q because the pins are really small around 0.07 mm diameter
The q pulse isn’t singularly related to the depth of cut, think more of total power per unit area. I’d recommend running a material test with different numbers of passes. The power percentage is also a little different than the way you would think about with regards to co2. I’d recommend keeping the cut parameters the same on each layer, but vary the number of passes.e.g. for your 0.03 layer, run it 3 times more than the 0.01 layer
1 Like
Thanks for your answer, yeah actually the q pulse is about that, but in total my problem is that how to tell to software to engrave the area between pins and the circle different from the inside of pins, I put them in the different layer but as soon as laser start engraving inside the circle I don’t get any more pins but just a flat surface, my only solution until now was to use a power scale within the same layer. And I get this results that is almost good but I have some burn on the pins cuz I don’t have total control on the power speed or even number of passes for the pins I can only play with percentage of power
If you’re cutting holes 0.07 with success, congratulations - that’s much smaller than I’ve attempted myself. I’m surprised you’re able to get a focal point that small!
If you want to exclude the pin circles from a Fill layer, select all the pins then right click > Duplicate (or Ctrl+D/Cmd+D on MacOS), then select the layer you wish to move that new duplicated geometry to from the color palette.
That new geometry will be removed from the Fill layer if it has an outline around it.
Maybe I missed something, but it seems that a sub layer is really what he needs. Then he can change whatever her want’s in the layer…?
Agreed, 0.07mm is 70 microns.
My F420mm has a spot size of about 50 microns, my F254mm produces about a 31 micron spot size… I agree, it’s tough at these small sizes.
So I may have misunderstood, what you want is everything inside the circle to be down 0.03 except the pins, which would be down 0.01 to the top so they stick up 0.02?
That should be easy, do what @Colin posted, layer without the pins, and then a second layer with just the pins if you want to remove a little off the top.
I guess I missed part of that…
These are all near spot size.
I haven’t tried anything that small, just ran 3 tests removing area surrounding 0.050, 0.075, and 0.100 pins using a 175x175 lens and some colored aluminum.
0.100mm pin pretty clear, 0.050 not so much. Layout the space between the pins equaled the size of the pins, but results appear the spaces were larger
The 0.075:
Params:
Thank you so much, now I have an access to both pins and surrounding of the pins.
I tried a lot of tests today, it seems what all of you are mentioned is right. Its almost impossible to get a hole without burning it. I can almost reach near the size but still they always burn.
With chemical etching we reached this size (picture blow)but with laser probably I need to try a bigger size
This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.