Related Tool & Ability Score

Tinkering works using Tinker’s Tools. Attempting to tinker item without these will almost always be made with disadvantage, and proficiency with these allows you to add your proficiency in them to any Tinkering crafting roll.

Most of the time tinkers need only the minimal heat of a basic fire and their tools to work, though any craft that requires an ingot may require a forge at the discretion of the GM.

Crafting Roll

Putting that together means that when you would like to smith an item, your crafting roll is as follows:

Tinkering Modifier = your Tinker’s Tools proficiency bonus + your Intelligence modifier

Success and Failure

For Tinkering, after you make the crafting roll and succeed, mark your progress on a crafting project. If you succeed, you make 10 minutes of progress toward the total crafting time (and have completed one of the required checks for making an item). Checks for Tinkering do not need to be immediately consecutive. Failure means that no progress is made during that time. Once an item is started, even if no progress is made, the components reserved for that item can only be recovered via salvage.

If you fail three times in a row, all progress and materials are lost and can no longer be salvaged.

Tinkering Saving Throw

Some gadgets a Tinkerer creates require a saving throw, the following is the formula for calculating the saving throw. The saving throw is calculated at the time of creation based on the creators attributes and proficiency, and doesn’t change once it is created. A saving throw doesn’t include any expertise or other bonuses a crafter has to the crafting roll.

Tinkering DC = 8 + your Tinker’s Tools proficiency bonus + your Intelligence modifier

Engineering Schematics

Below are a list of explosives one can craft, including what reagents and items are needed, as well as how many crafting checks are needed and how long it will take, in general, to make the explosive.

Blacksteel Scope

Crafting Time : 80 Minutes

Checks Needed : 8

Crafting DC : 20

Materials

• Magnifying Glass X2

• Dark Iron Ingot X4

• Tier 4 Arcane Essence X2

• Tier 4 Primal Essence X2

Bomb, Potent

Crafting Time : 10 Minutes

Checks Needed : 1

Crafting DC : 15

Materials

• Packs of Blasting Powder X4

• Parts X2

Bomb, Powerful

Crafting Time : 20 Minutes

Checks Needed : 2

Crafting DC : 15

Materials

• Packs of Blasting Powder X8

• Fancy Parts X3

Bomb, Weak

Crafting Time : 10 Minutes

Checks Needed : 1

Crafting DC : 15

Materials

• Packs of Blasting Powder X2

• Parts X1

Buzz Saw

Crafting Time : 10 Minutes

Checks Needed : 1

Crafting DC : 15

Materials

• Shortsword X1

• Metal Scraps X5

• Parts X2

Goblin Jumper Cables

Crafting Time : 30 Minutes

Checks Needed : 3

Crafting DC : 15

Materials

• Steel Ingot X5

• Fancy Parts X10

• Esoteric Parts X5

Marksman's Pistol

Crafting Time : 100 Minutes

Checks Needed : 10

Crafting DC : 18

Materials

• Ingots X3

• Parts X5

• Fancy Parts X4

• Bag of Ball Bearings X1

• Tier 1 Arcane Essence X3

Smoke Powder

Crafting Time : 10 Minutes

Checks Needed : 1

Crafting DC : 15

Materials

• Tier 1 Reactive Reagents X2

Tool of Wondrous Accidents

Crafting Time : +40 Minutes

Checks Needed : +4

Crafting DC : +4

Materials

• All Materials for the Tool

• Tier 2 Arcane Essence X6

• Fancy Parts X7

• Esoteric Parts X7

Template

Crafting Time : 10 Minutes

Checks Needed : 1

Crafting DC : 13

Materials

• Derp