Due to the mention of mechanical users I'm assuming 1.10 here.2 questions, both regarding a Wither spawner (mechanical users+shield protector).
1)I put a timer in the redstone circuit activating the placement in order to interval it, but the timer just goes on its on, I need an easy way to make an AND circuit, so that it needs the timer signal AND a lever/button's
2)is there some thing that lets me keep a certain number of items in an inventory?. Let me explain: my mechanical users, which place the soul sand and skulls, are hooked up to 2 chests, with sand and skulls. And the chests are hooked up to my AE network with export buses . So all my skulls get sucked into the chests and then into the users. Leaving my network empty of them and me not knowing how many I got, and creating clutter.This is not my optimal setup but it was the quickest.
What I would love to do is have a stack in the chests and feed the skulls/sand to the mech users when needed, or if that is not possible (tried extracting when signal active from chests but it only placed one sand and skull obviously), keep a stack in both users and chests
1) The simplest ways would either be using the RFTools Logic Gate, or a super circuit maker circuit.
2) Extra Utils transfer filters can specify both what to place in an inventory, and to keep a single item or a single stack (or unlimted) in there, use them in tandem with an AE interface, transfer pipes and a transfer node. You might be able to do it with AE2 subnetworks as well, although this is more complicated to pull off.