If you want to get anything from the Tinkering Ace page, you must pass the Barrier Of Entry for the Tinkering Archetype. this means you need:
Lead Manufacturer, Enchanted Devices, & Monkey Mimic
President Foreman
Requires Barrier Of Entry : Tinkering
1d12, 80ft Range, 4 Targets, Made & Used On Actions, Bonus Actions, And Reactions. +5 if made before hand.
Appropriation
Requires Barrier Of Entry : Tinkering
Inventions can now take on characteristics that have nothing to do with tinkering or the type of magic you have.
Optimization
4 Points | 1 Max
Requires Barrier Of Entry : Tinkering
Half all preexisting scrap costs for inventions. When making inventions going forward they will cost less than what they should
8D Intellect
4 Points | 1 Max
Requires Barrier Of Entry : Tinkering
If there was a limit to the size of your inventions, it no longer exists.
Dirty Fighter
4 Points | 1 Max
Requires Barrier Of Entry : Tinkering
Dismantle becomes a bonus action, when you roll to dismantle something you get a +2 bonus to it