Does anyone with a glowforge know if you can fudge the height settings to do out of focus engraving? Im specifically thinking of it for rear engraving acrylic and colour filling.
Yes, I have. It works well for certain applications, especially to have a mottled surface of the engrave rather than seeing raster lines.
I thought @takitus had been playing with “out of focus” tweaks, but others just changed the material height setting to create “out of focus”.
EDIT: Dang it, @marmak3261 types faster than me
Perfect thank you.
If anyone has done it on clear acrylic I would love to see that as well just to get an idea of how clear it gets. I have alot of that use in mind for the laser
A few of us have tinkered with clear engraving. Something you can look into is extruded vs cast acrylic. Apparently extruded stays clear when cut vs getting white/cloudy like cast acrylic. (I’ve only cut a little bit of extruded, haven’t engraved it though.) I think a few others here have more experience with the cast and they might speak up
You can using the focus setting in manual mode! I’m moving it to Beyond the Manual where you can get more help with it.
I’ve brought back a good amount of clarity in engraved acrylic by pouring acrylic weld solvent into the engraves and let it evaporate on its own.
This particular example was a fairly deep 3D engrave and I wasnt going for smooth finish from the laser, but tested the acrylic solvent bath and it did “polish” the frosted look pretty well.
I also tried 3D engraving some corner cube retroreflectors which turned out to be fails as far as reflectors go, but the texture is killer and the clarity after a few solvent baths is really good.
Thanks, the solvent bath is a good idea. Im hoping to paint fill with multiple colours between engraves though so solvent is a no go… But i’ll keep it in mind.
Mostly clear anyway. But it is more brittle than cast acrylic.