In order to Craft a variety of different Weapons, you will need both the schematic (which is basically the recipe for each and every Weapon or item found within the game) and the Materials needed to craft said weapon. Even if you don't have the schematic for a given weapon on hand, you can go to the Armory Section within your Collection Book to view its recipe. All weapons of the same tier/rarity will require the same exact materials within their recipe, with the exception of Energy Based Weapons, of course. Below is a list of known Weapon Recipes, separated by the type of weapon and rarity of such.
Common:
5 Blast Powder
12 Rusty Mechanical Parts
2 Duct Tape
1 Copper Ore
Uncommon:
8 Blast Powder
12 Rusty Mechanical Parts
4 Duct Tape
3 Copper Ore
Rare:
10 Blast Powder
18 Rusty Mechanical Parts
1 Rotating Gizmo
5 Copper Ore
Epic:
12 Blast Powder
24 Rusty Mechanical Parts
3 Rotating Gizmo
8 Copper Ore
Legendary:
15 Blast Powder
30 Rusty Mechanical Parts
1 Active Powercell
11 Copper Ore
Common:
5 Blast Powder
12 Stringy Twine
2 Duct Tape
1 Copper Ore
Uncommon:
8 Blast Powder
12 Stringy Twine
4 Duct Tape
3 Copper Ore
Rare:
10 Blast Powder
18 Stringy Twine
1 Rotating Gizmo
5 Copper Ore
Epic:
12 Blast Powder
24 Stringy Twine
3 Rotating Gizmo
8 Copper Ore
Legendary:
15 Blast Powder
30 Stringy Twine
1 Active Powercell
11 Copper Ore
Common:
10 Planks
12 Rough Mineral Powder
2 Duct Tape
1 Copper Ore
Uncommon:
10 Planks
12 Rough Mineral Powder
4 Duct Tape
3 Copper Ore
Rare:
12 Planks
18 Rough Mineral Powder
1 Rotating Gizmo
5 Copper Ore
Epic:
15 Planks
24 Rough Mineral Powder
3 Rotating Gizmo
8 Copper Ore
Legendary:
20 Planks
30 Rough Mineral Powder
1 Active Powercell
11 Copper Ore
Rare:
12 Blast Powder
12 Rusty Mechanical Parts
2 Copper Ore
Epic:
12 Blast Powder
12 Rusty Mechanical Parts
2 Copper Ore
Legendary:
12 Blast Powder
12 Rusty Mechanical Parts
3 Copper Ore
Common:
10 Rough Ore
12 Rough Mineral Powder
2 Duct Tape
1 Copper Ore
Uncommon:
10 Rough Ore
12 Rough Mineral Powder
4 Duct Tape
3 Copper Ore
Rare:
12 Rough Ore
18 Rough Mineral Powder
1 Rotating Gizmo
5 Copper Ore
Epic:
15 Rough Ore
24 Rough Mineral Powder
3 Rotating Gizmo
8 Copper Ore
Legendary:
20 Rough Ore
30 Rough Mineral Powder
1 Active Powercell
11 Copper Ore
Common:
10 Planks
12 Stringy Twine
2 Duct Tape
1 Copper Ore
Uncommon:
10 Planks
12 Stringy Twine
4 Duct Tape
3 Copper Ore
Rare:
12 Planks
18 Stringy Twine
1 Rotating Gizmo
5 Copper Ore
Epic:
15 Planks
24 Stringy Twine
3 Rotating Gizmo
8 Copper Ore
Legendary:
20 Planks
30 Stringy Twine
1 Active Powercell
11 Copper Ore
Rare:
10 Blast Powder
18 Rusty Mechanical Parts
1 Rotating Gizmo
5 Copper Ore
Epic:
7 Quartz Crystal
24 Rusty Mechanical Parts
3 Rotating Gizmo
5 Copper Ore
Legendary:
7 Quartz Crystal
24 Rusty Mechanical Parts
1 Active Powercell
8 Copper Ore
Epic:
5 Rough Ore
18 Rough Mineral Powder
3 Rotating Gizmo
5 Copper Ore
Legendary:
6 Rough Ore
24 Rough Mineral Powder
1 Active Powercell
8 Copper Ore
Epic:
5 Planks
18 Stringy Twine
3 Rotating Gizmo
5 Copper Ore
Legendary:
6 Planks
24 Stringy Twine
1 Active Powercell
8 Copper Ore