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High capacity plank maker.png

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Once the plank maker has processed some logs, the resulting planks may be withdrawn via the machine management interface.

High capacity plank maker (icon).png High capacity plank maker
Invention-Make-X GE icon.png
7,100 XP--
Invention Invention level117
Blueprint (Invention).png Discover: High capacity plank maker
Power (icon).png Power required: 65
Machine built: Plank maker
P2P icon.png Members onlyYes
Precise components.pngPrecise components20N/A-
Sharp components.pngSharp components20N/A-
Living components.pngLiving components30N/A-
Crafted parts.pngCrafted parts300N/A-


The high capacity plank maker processes 40 items per hour at a cost of 600 machine charge. Thus, each item costs 15 machine charge to process - an equivalent of 603.4 coins per item.

The high capacity plank maker processes 960 items per day at a cost of 14,400 machine charge (approximately 4.8 divine charges). When completely filled, it will take 7 days 20 hour to process the 7,500 input items, using 112,800 machine charges (approximately 37.6 divine charges).


Log Plank Profit via
Daily profit Weekly profit Profit via
Profit via
Logs.png Logs
Plank.png Plank
-95.41 -91,598.4 -641,188.8 408 418
Oak logs.png Oak logs
Oak plank.png Oak plank
-638.41 -612,878.4 -4,290,148.8 -285 -260
Teak logs.png Teak logs
Teak plank.png Teak plank
-336.41 -322,958.4 -2,260,708.8 -233 -183
Mahogany logs.png Mahogany logs
Mahogany plank.png Mahogany plank
417.59 400,881.6 2,806,171.2 -479 -329
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High capacity plank maker (High capacity plank maker (icon).png, Invention, 117) +
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