High capacity plank maker

The high capacity plank maker is a machine that can be built in the Invention Guild basement at level 117 Invention. It is an upgraded version of the plank maker. It automatically converts logs into planks, even while the player is offline. The plank maker does not incur the normal coin cost for converting logs to planks.

Every hour, on the hour, the high capacity plank maker will process up to 40 items deposited in it, consuming up to 600 machine charge. Building it requires 65 of the power allotment supplied by the generator. It can hold up to 7,500 items over the three input slots. Researching the high capacity plank maker blueprint awards 256,568 Invention experience.

Once the plank make has processed some logs, the resulting planks may be withdrawn via the machine management interface.

Analysis
The high capacity plank maker processes 40 items per hour at a cost of 600 machine charge. Thus, each item costs machine charge to process - an equivalent of  per item.

The high capacity plank maker processes items per day at a cost of  machine charge (approximately  divine charges). When completely filled, it will take 7 days 20 hour to process the 7,500 input items, using machine charges (approximately  divine charges).