ELEX II
50 Achievements
GOG
Weaponsmith
Made a weapon 20 times.
30.5%
How to unlock the Weaponsmith achievement in ELEX II - Definitive Guide
I ignored this for quite a while, you need to put at least 1 skill pint in the weapon smith skill. at the bastion talk to the smithy, he can train you. he also sold me 5 low level pipes. and in his house there is a anvil that is the crafting area you need. SAVE upgrade the pipes you just bought and if you can anything else. RELOAD rinse and repeat until this pops. took me maybe 15mins.
Build Weapons is a Crafting skill that requires a minimum of 10 Strength and 10 Constitution to purchase. This will allow you to combine multiple damaged weapons into one finished weapon (usually at a 3:1 ratio for basic weapons). Be sure to loot every weapon from defeated enemies so you can do this more quickly. Find any anvil to use this ability. As always, you can save prior to crafting if you don't have enough weapons to combine for 20 total right away, and reload to repeat the process until it unlocks.