Feed each required ingredient to the assembler and give its output a clear destination. In a recorded playtest, a player used an assembler for circuit boards fed by silicon wafers and nickel plate. Read your build's recipe before sizing either feed.
Start from the actual recipe
Write down the input types for one cycle. Give each ingredient a path to the machine so that you can tell which one has arrived. The circuit-board playtest example has two different inputs, which makes it a useful test of a two-feed setup.
Run the smallest complete batch
Check both ingredients at the assembler, then look for the finished output. If a feed arrives late, watch its upstream producer before adding another assembler. A second machine can make an intermittent supply problem harder to see.
Route the result before increasing throughput
Send the completed parts toward storage or their next production step. Observe several cycles. If ingredients pile up but nothing leaves, trace the outgoing path before assuming that another feed is the answer.
See Main Sequence on Steam for the official game information.
FAQ
What made circuit boards in the playtest?
The player's example used an assembler.
What inputs did the example use?
Silicon wafers and nickel plate. Check the recipe in your version for current requirements.
When is an assembler ready to duplicate?
Once the ingredients arrive consistently and the output has a reliable destination.