Machines

Machines are a branch of the Invention skill, serving as counterparts to devices. Machines were introduced with an update on 18 September 2017.

Machines are built in the formerly blocked off back portion of the Invention Guild. Upon reaching 60 Invention, Doc will offer a short optional tutorial on machines (which can be skipped at any time after starting).

Mechanics

A machine hotspot.

Generator and charge

The first machine built is the generator. Only one generator can be built, though it can be upgraded twice. The generator converts divine charges into 'machine charge' and distributes this to all the other machines in the guild.

The generator also has a maximum power allotment, and each machine uses some amount of this allotment. Upgrading the generator provides more power, and upgraded versions of the other machines require more power. New machines can only be built if there is still enough power available for them; you can check this by hovering over the energy icon in the building interface or checking the generator. Having all 5 tier 2 machines would require a total of 260 power, and since the Jumbo generator only provides 160 power, it is not possible to have all 5 tier 2 machines built at once.

Downgrading machines give experience as the lower tier version again, but will use additional materials.

Building

Machines are built on hotspots in the Invention Guild basement. There are 6 hotspots and any of the machines can be built in any of the hotspots. One can build multiple copies of a single machine. Building machines costs a significant number of materials.

Once built, machines can be upgraded (using more materials) to a more powerful version that processes more, but also costs more power allotment and machine charge to run.

Usage

Machines perform their associated action automatically at every hour, on the hour - the 'machine tick'. They run even when the player is offline. Each machine processes a different amount of actions per hour, at a specific cost of machine charge (and sometimes extra items). The inputs are processed into outputs at the machine tick.

Machines will continue to process for as long as they have machine charge and input items available, and as long as there is space in the output slots.

Interfaces

Generator

The generator shows how much machine charge and power allotment is used and available. Machine charge can be replenished with divine charges - 3000 machine charge per divine charge.

Machines

The Machine hotspot interface

Machines have three input slots, which accept all items relevant to the machine - though items of over 500,000 Grand Exchange value each cannot be input, nor can augmented items. Items are processed from left to right, signified by a highlighted square around the item that will be processed at the next machine tick.

The bar in the center shows the total machine charge available in the generator, with the small marking showing how much the machine will require to fully process all of the inputs.

There are three output slots, where the processed items will be placed, with an estimation of how long it will take to process everything (until either charge or inputs run out).

Machines

Generators

Generator	Level	XP	Power allotment	Materials required
Simple generator	60	4,250	100	30 100 100 30
Large generator	80	5,250	125	30 100 100 100
Jumbo generator	102	6,350	160	15 50 50 80

Machines

Machine	Level	XP	Power required	Materials required	Capacity	Running costs	Hourly production	Description
Automatic hide tanner	93	2,950	25	50 3 100 100	10,000	225 machine charge per hour	45	Tans all types of hides into leather with no coin cost.
Optimised hide tanner	111	6,800	50	100 10 10 100	30,000	840 machine charge per hour	140
Partial potion producer	90	2,875	20	15 125 250 250	3,750	75 machine charge per hour 1 per herb	13	Turns clean herbs into unfinished potions. Does not benefit from the scroll of cleansing.
Partial potion producer DX	114	6,950	50	30 30 100 250	13,000	210 machine charge per hour 1 per herb	40
Plank maker	99	3,100	30	10 10 150 150	2,500	225 machine charge per hour	13	Turns logs into planks with no coin cost.
High capacity plank maker	117	7,100	65	20 20 30 300	7,500	600 machine charge per hour	40
Alchemiser	72	2,425	20	5 125 250 250	1,500	45 machine charge per hour 5 per item 1 per item	8	Casts High Level Alchemy on inputs.
Alchemiser mk. II	108	6,650	55	10 10 10 100	5,000	150 machine charge per hour 1 per item	25
Auto disassembler	60	4,250	30	5 100 100 200	7,500	180 machine charge per hour	35	Disassembles input items. Uses the player's current junk reduction.
Auto disassembler mk. II	81	5,300	40	10 100 200 200	13,000	230 machine charge per hour	60

Analysis

Cumulative requirements

The material requirements to build both tiers of a machine (three tiers for generator) at once.

Machine	Material
Jumbo generator	100 , 100 , 30 , 100 , 80 80 , 100 , 100 , 15 , 80
Optimised hide tanner	50 , 100 , 100 , 100 100 , 10 , 13
Partial potion producer DX	100 , 500 , 250 125 , 30 , 45
High capacity plank maker	10 , 450 , 150 , 10 30 , 20 , 20
Alchemiser mk. II	10 , 250 , 125 , 250 100 , 15 , 10
Auto disassembler mk. II	100 , 200 , 200 , 200 200 , 5 , 10

Output and maintenance

A divine charge costs 120,683 coins and provides 3,000 machine charge, so each machine charge costs the same as a single charge: 40.23 coins. The output and cost of each machine (including secondary ingredients such as vials of water, nature runes, and fire runes) are listed below:

Machine	Items per hour	Machine charge		Secondary ingredient(s)		Cost
		Per item	Hourly	Per item	Hourly	Per item	Hourly
Automatic hide tanner	45	5	225	-	-	201	9,051
Optimised hide tanner	140	6	840	-	-	241	33,791
Partial potion producer	13	5.77	75	1	13	328	4,265
Partial potion producer DX	40	5.25	210	1	40	307	12,288
Plank maker	13	17.31	225	-	-	696	9,051
High capacity plank maker	40	15	600	-	-	603	24,137
Alchemiser	8	5.63	45	1 , 5	8 , 40	1,426	11,410
Alchemiser mk. II	25	6	150	1	25	646	16,159
Auto disassembler	35	5.14	180	-	-	207	7,241
Auto disassembler mk. II	60	3.83	230	-	-	154	9,252