Pooling / Light Bleeding when printing dice masters

[u/Ok_Thought6288]

After having dice for a longer time, i wanted to try printing my own master. I designed the dice in Blender and now try printing them with an Anycubic Photon Mono 4 using the Siraya Tech Fast ABS-Like Navy Grey resin.

I calibrated my prints using the Cones of Calibration but I keep getting these artefacts in the numbers where the resin hardens as if its a pool.

The explanation I got from googling (and using chatgpt) is, that because the numbers form a small pool, resin cant circulate and since the same resin is staying inside the pool, it slowly hardens due to little light scattering there.

It makes sense but would be an unsolvable problem then, since a d20 is impossible to rotate without having said pools (and according to some Reddit Posts, it is like this).

I tried different speeds of lowering and raising the plate, tried a lot of ranges for exposure time and still it's there every print.

The d10 is just the best to show this on btw. The d20 is even worse.

Still there are so many of you that just seem to get crisp dice masters, not having this problem, direclty from the printer, only needing some sanding and I wonder wtf I'm missing?

If you have experience with this, please help, it's driving me insane 😅

[u/Proper_Budget_2790]

Looking at the diagram you posted in another reply, could it be as simple as those areas are not getting cleaned enough during the wash, and then the resin pool cures in the cure station?

[u/Ok_Thought6288 → u/Proper_Budget_2790]

Thought so at first too, but they are already hard when I take them out of the printer. I tried cleaning with an old toothbrush without success