Continuing the discussion from Delrin Testing (Settings):
So I just had to try the seal design in my Delrin test with 3D engraving. I took the letter C into Photoshop and added an outer glow with a custom contour, plus a Neon Glow filter, to give some greys around the shape of the C. Flipped it horizontally and added it to a 0.75 inch vector circle. I engraved it with the following settings: Speed 1000, power 100, Map Greys to Power with minimum power 10, 675 LPI. The one on the left is with one pass and the one on the right was with two (it went all the way through the 1/16" Delrin). But I got a really nicely curved 3D engrave, as you can see when I push polymer clay into the Delrin:
I guess I need to get some 1/8" Delrin, or use that 1/4" stuff I’ve got.