Hey Sovann,
I just wanted to write to you this morning and you have beaten me to it :D.
Well my rez isn’t 37u because I would rather sacrifice the sharpness in the middle for bigger rez and more rings. Also in one of his posts Kao mentioned that he is not using exactly 100u because he has calibrated differently.
Dunno if I mentioned but I have 2 printers one is set to 83×45 and the other one 73×40.
Last week I’ve done some tests with 15u Z well it’s not worth it the printing time extended with 1 + 1/2 hours and the quality wasn’t better.
The reason why I mentioned the horizontal lines is because our jeweler who is going to do the casting mentioned that there’s a lot of post processing and if we want to keep our costs down we need to get a better quality.
Today I will be using 3dm for fast printing and testing out models.
Also last week I’ve did a couple of tilt test and flat rings but they didn’t come out. Back to the drawing board.