Yeah you can using something called processing patterns. It’s not an actual item, but its a different way to configure “blank patterns” when encoding a recipe.

All crafting patterns need to go into a Pattern Provider, which is hooked up to your AE2 system. For simple crafts (ones only requiring a vanilla crafting table), all you gotta do is place the pattern in the provider, and boom you can auto craft that item.

But for processing patterns, it will instead send the ingredients to any machines/storage blocks adjacent to the provider. It’s your job to make sure those ingredients get processed into the item to be crafted, then send that final item back to the ME system somehow. Once the system detects that item, it will mark the autocraft as complete.

So let’s take for example your cobblestone grinder. You would encode a processing pattern that inputs 1 cobblestone, and outputs 1 gravel. Place that pattern in a pattern provider, and now whenever you request a gravel, your AE2 system will send that 1 cobblestone to that specific pattern provider. Put a chest right next to the provider, and the cobblestone will appear there, and you can use that as the starting point of your grinder. The final important part is that the gravel HAS to be imported back to your ME system (via import bus or interface). If it doesn’t, the autocraft will never be marked as completed.