Plank maker (machine)

This article is about the machine. For the NPC, see Plank maker.

The plank maker is a machine that can be built in the Invention Guild basement at level 99 Invention. 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 plank maker will process up to 13 items deposited in it, consuming up to 225 machine charge. Building it requires 30 of the power allotment supplied by the generator. It can hold up to 2,500 items over the three input slots. Researching the plank maker blueprint awards 153,526 Invention experience.

Once the plank make has processed some logs, the resulting planks may be withdrawn via the machine management interface.

At level 117 Invention, the plank maker can be upgraded to the high capacity plank maker.

The Plank maker interface

Required materials:
- - - - - - - - - -
Production JSON:
{ "product": "Plank maker (machine)", "image": "[[File:Plank_maker_(icon).png|link=Plank maker (machine)]]", "mats": [ { "name": "Saw", "quantity": "10", "image": "Saw.png" },{ "name": "Direct components", "quantity": "10", "image": "Direct components.png" },{ "name": "Simple parts", "quantity": "150", "image": "Simple parts.png" },{ "name": "Crafted parts", "quantity": "150", "image": "Crafted parts.png" } ], "skill": "Invention", "level": "99" }

Plank maker (machine)

		-
3,100 XP		-		-
Requirements
Invention level				99
Discover: Plank maker
Power required: 30
Members only				Yes
Materials
Item		Quantity	Price	Total
	Saw	10	807	8,070
	Direct components	10	N/A	-
	Simple parts	150	N/A	-
	Crafted parts	150	N/A	-

Analysis

The plank maker processes 13 items per hour at a cost of 225 machine charge. Thus, each item costs 17.3 machine charge to process - an equivalent of 696.2 coins per item.

The plank maker processes 312 items per day at a cost of 5,400 machine charge (approximately 1.8 divine charges). When completely filled, it will take 8 days 1 hour to process the 2,500 input items, using 43,425 machine charges (approximately 14.5 divine charges).

Profit

Log (Value)	Plank (Value)	Profit via machine	Daily profit	Weekly profit	Profit via sawmill	Profit via portable/cape
Logs (291)	Plank (799)	−188.25	−58,733.4	−411,133.8	408	418
Oak logs (591)	Oak plank (556)	−731.25	−228,149.4	−1,597,045.8	−285	−260
Teak logs (105)	Teak plank (372)	−429.25	−133,925.4	−937,477.8	−233	−183
Mahogany logs (300)	Mahogany plank (1,321)	324.75	101,322.6	709,258.2	−479	−329