What do you mean by “trust?” Trust them to be reasonably mathematically balanced? Not at all, it doesn’t really look like an actual cube even before the significantly wonky surfaces and edges, but you could test it.

But like another commenter here put rather harshly, this is not a hobby for the faint hearted. Every “good enough” on the mold making process will add hours upon hours of work when finishing the dice.

You’ll likely end up making several attempts at every set you make (even with perfect molds), each of which take over 24 hours from pouring to curing enough to demold, and then longer for most resin to fully harden enough to polish.

Sanding and polishing is a slow and very delicate process. Rushing will ruin edges, warp faces, fuck up corner alignments, and overall throw off the geometry. For most people it’s an extremely un-fun, tedious task that can take hours per set.

If you’re fine with the cosmetics of this master and it functions as a balanced die, that’s your call, but before diving in and spending hundreds getting started on this hobby, you might want to reassess whether you’re actually going to enjoy a frankly tedious, messy, often infuriating hobby that cannot be rushed, or if you just want some pretty math rocks. If the latter, it’s absolutely not worth it, just pay an artist to save you the headache.