Can't dupe arcosphere chest.

Can't dupe arcospheres.

Can't dupe arcosphere collectors.

Can't dupe deep space probes, which even come from the same mod.

Out of great annoyance I decided it would surely at least dupe blue circuits. It did - at a glacial pace which may have been useful 1000 hours into this run (but probably wouldn't have been fast enough even then), but also caused the first brownout my base has seen in months.

0/10. Would not recomend. I want my science refunded.

Since you can't do that for me, can you tell me how to find a list of either things it CAN dupe or things it CANT. This doesn't appear to be availible in the factoriopedia, informotron, or even after you have wasted your science, by mousing over the possible inputs.

The white hole generator will not duplicate any non-stackable items. If there's anything else that's blocked, I don't know about it (because it's not done in the script that generates the recipes), but the Factory Planner mod lets you check fairly readily; if you turn on the hidden and unresearched recipe toggles in the screen to select a recipe for an item, the white hole recipe will be shown if it exists.

There are some things I know can be duplicated that a lot of people seem to think is worth the effort.

Okay, thanks for the response. That narrows things down a bit.

but the Factory Planner mod lets you check fairly readily

I'm running an unmoddified ATOM modification :)

I really don't think not using a factory planner is the recommended configuration. o.o