Review week 33: ore and ingots

The week from ore to ingots:

• Arc furnace: energy and time per piece, Activate 1 per stack, self shutdown on power shortage, release by battery level.
• Ore chain: only ore in, count ingots by kind, recognise a standing chain.
• Displaying production: stock, remainder and progress from counting and target amount.
• Quantities: ClearMemory, ExportCount, one Activate per piece.
• Typical mistakes: Sum on ratios, thresholds without memory, Activate 0 in the middle of a job.

You pass from 60 %.