Ian Stewart-Koster
01-20-2018, 7:58 AM
376993
The little ULS took ages to do this, but I'm happy with the result.
The stainless steel (304) is 1.5mm thick, and folded, so no warping as we went along!
I'd tried on another scrap, the idea I'd read, of airbrusing Cermark on - a light coating only - and found it not as good as the thicker sloppy foam brushing on that I used.
The hard part about this was aligning it - the image itself occupies the entire 24" x 12" Universal bed space except for 3mm in each dimension.
The panel itself is about 1.25" wider all round, roughly, so after putting it down, you didn't quite know where the original boundaries of the bed were.
I vector engraved all outlines first, twice, then raster engraved the lot (100% power, 38% speed, 50 watt ULS)
IN the end I was not happy with the bigger outerline in the image, and the text saying the Head of Qld's greatest rail trail, which I'd done in a 60% grey, so I decided to put it back in, check alignment, edit the file for a 90% black, brush new Cermark over the outline and rerun the relevant parts.
I can tell I was about 0.1 mm off alignment, but I'm looking for it- otherwise, I'm very happy with the cermark-over-cermark, double application & double laser, and also happy with the blackness of the parts that are meant to be black.
I salvaged all the unused Cermark to use again, too - there was a fair bit that went onto this panel!
ULS laser engraving, not Chinese... rather slow, but worthwhile.
Preparing the photo took a while...
Thanks for advice & hints!
The little ULS took ages to do this, but I'm happy with the result.
The stainless steel (304) is 1.5mm thick, and folded, so no warping as we went along!
I'd tried on another scrap, the idea I'd read, of airbrusing Cermark on - a light coating only - and found it not as good as the thicker sloppy foam brushing on that I used.
The hard part about this was aligning it - the image itself occupies the entire 24" x 12" Universal bed space except for 3mm in each dimension.
The panel itself is about 1.25" wider all round, roughly, so after putting it down, you didn't quite know where the original boundaries of the bed were.
I vector engraved all outlines first, twice, then raster engraved the lot (100% power, 38% speed, 50 watt ULS)
IN the end I was not happy with the bigger outerline in the image, and the text saying the Head of Qld's greatest rail trail, which I'd done in a 60% grey, so I decided to put it back in, check alignment, edit the file for a 90% black, brush new Cermark over the outline and rerun the relevant parts.
I can tell I was about 0.1 mm off alignment, but I'm looking for it- otherwise, I'm very happy with the cermark-over-cermark, double application & double laser, and also happy with the blackness of the parts that are meant to be black.
I salvaged all the unused Cermark to use again, too - there was a fair bit that went onto this panel!
ULS laser engraving, not Chinese... rather slow, but worthwhile.
Preparing the photo took a while...
Thanks for advice & hints!