Was upgrading pickups on my 2006 Schecter Blackjack and snapped one of the pickup rings.

I made these based on the dimension given in the last picture. I followed the slant, meaning the neck pickup ring starts at 9mm and slants to 7.3mm -- following the 10.7mm to 9mm slant on the bridge ring.

On my K1C, I printed on this bed on the "carbon fiber" side to get the top of the rings to look like they do in the picture and added fuzzy skin to the outside for S&G's. (Amazon affiliate link).

If you want the bottom 100% flush, I'd recommend sticking a piece of sandpaper down on something flat and going in a circle motion with the rings briefly to remove the layer steps on the slanted bottom. However, I skipped doing this and it's not that noticeable to me.