Inconsistent Boole?

[MFVis]

I'm looking to "engrave" some text into a cylinder (model attached) in preparation for printing. I used a spline wrap to position the text, then subtracted it from the cylinder inside the boole. But it doesn't work very well. Some letters are just holes, not engraved. And the 3 of 2023 appears to be engraved without a hole. Very odd.

I also had to extrude the text much deeper than I wanted in order to get the boole to work at all. Below a certain depth, the whole thing just disappears - both text and cylinder.

If I convert the bent text into a mesh object and swap it for the MoGraph text, I get the same result, but that version is too big to send.

The boole seems to work fine on plain text objects or primitives. But it doesn't like the text that has been bent. Is there some "residual"aspect that is fooling the boole?

Thanks!

PS: my plan is to thicken the boole result so I get backing behind the letters. If I dig them into a thickened base, the walls get too thin behind the letters.

Base Engraver Boole.c4d

[Dr. Sassi]

Hi MFVis,

Thanks for the file. Boole and open objects might work or not. I like to close them so Boole knows what is going on.

When you are done with the Boole, use the Current State to Object and delete the Bottom of the object.

https://stcineversityprod02.blob.core.windows.net/$web/Cineversity_Forum_Support/2023_PROJECTS_DRS/20231227_CV4_2024_drs_23_MOeg_03.c4d.zip

If I had to do this object, perhaps my first try would be to have a flat object be the Bool (outside) and another one with Bevels on the (while expanding their shape, for the inside). Then, delete from both what I don't want to have and merge it. Then, bend it into a circle, close it, and create the top part. It's way more work, but I assume the mesh is cleaner instead of adding thickness later on.

All the best.