Mechanic guia maple

This is gonna be the place for my Mechanic guide, and what I'm following/going to follow. Worked fine for me, so it should for you.

This is ignored
Level 10: +3 Mech: Prototype (3); +1 Gatling Shot (1); +1 Screw Pucnh
Level 11: +3 Mech: Prototype (6)
Level 12: +3 Mech: Prototype (9)
Level 13: +1 Mech: Prototype (10) [MAX]
Level 14: +3 ME-07 Drillhands (4)
Level 14: +3 ME-07 Drillhands(7)
Level 15: +3 ME-07 Drillhands (10)
Level 16: +3 ME-07 Drillhands (13)
Level 17: +3 ME-07 Drillhands (16)
Level 18: +3 ME-07 Drillhands (19)
Level 19: +1 ME-07 Drillhands (20) [MAX];+2 Gatling Shot (2)
Level 20: +3 Gatling Gun (5)
Level 21: +3 Gatling Gun (8)
Level 22: +2 Gatling Gun (10); +1 Flame Launcher (1)
Level 23: +3 Flame Launcher (4)
Level 24: +3 Flame Launcher (7)
Level 25:+3 Flame Launcher (10)
Level 26: +3 Flame Launcher (13)
Level 27: +3 Flame Launcher (16)
Level 28: +3 Flame Launcher (19)
Level 29: +1 Flamethower (20) [MAX]; +2 Gatling Gun (12)
Level 30: +3 Gatling Gun (15) [MAX]

Ending with:

Mech: Prototype (10) [MAX]
Gatling Gun (15) [MAX]
Flame Launcher (20) [MAX]
ME-07 Drillhands (20) [MAX]

Reasoning:
Spoiler
1 in everything because theskills are useful level 1. Max Prototype next because it gives +10 ATK and +400(M)DEF at max, which is incredibly useful.

The next bit depends on you and your playing style. I preferred Screw Punch as some people prefer Flame Thrower. Screw Punch does more damage to more monsters, and it's easier to mob with. However, if you hold down Flame Thrower it will do more damage over time. But with themonsters you train on only a couple of Screw Punches will kill them. If you prefer Flame Launcher, by all means swap the Gatling & Flame Launcher with Screw Punch. Oh and yes, you can max everything in 1st job.

Training Locations
10-20: Edelstein quests; Blue Ribbon Pigs; Stone Golems.
20-30: Edelstein quests; Mixed Stone Golem; Subway Cleanup.

This is ignored
Level 30: +1 HeavyWeapon Mastery (1); +1 Atomic Hammer (1); +1 Rocket Booster (1)
Level 31: +1 Perfect Armour (1); +2 Mechanic Mastery (2)
Level 32: +3 Mechanic Mastery (5)
Level 33: +3 Mechanic Rage (3)
Level 34: +3 Mechanic Rage (6)
Level 35: +3 Mechanic Mastery (8)
Level 36: +3 Mechanic Mastery (11)
Level 37: +3 Mechanic Mastery (14)
Level 38: +3 Mechanic Mastery (17)
Level 39: +3 Mechanic Mastery (20)[MAX]
Level 40: +3 Atomic Hammer/Heavy Weapon Mastery (4)
Level 41: +3 Atomic Hammer/Heavy Weapon Mastery (7)
Level 42: +3 Atomic Hammer/Heavy Weapon Mastery (10)
Level 43: +3 Atomic Hammer/Heavy Weapon Mastery (13)
Level 44: +3 Atomic Hammer/Heavy Weapon Mastery (16)
Level 45: +3 Atomic Hammer/Heavy Weapon Mastery (19)
Level 46: +1 Atomic Hammer/Heavy Weapon Mastery (20) [MAX]; +2 Heavy WeaponMastery/Atomic Hammer (3)
Level 47: +3 Heavy Weapon Mastery/Atomic Hammer (6)
Level 48: +3 Heavy Weapon Mastery/Atomic Hammer (9)
Level 49: +3 Heavy Weapon Mastery/Atomic Hammer (12)
Level 50: +3 Heavy Weapon Mastery/Atomic Hammer (15)
Level 51: +3 Heavy Weapon Mastery/Atomic Hammer (18)
Level 52: +2 Heavy Weapon Mastery/Atomic Hammer (20) [MAX]; +1 Perfect Armour (2)
Level 53: +3 PerfectArmour (5)
Level 54: +3 Perfect Armour (8)
Level 55: +3 Perfect Armour (11)
Level 56: +3 Perfect Armour (14)
Level 57: +3 Perfect Armour (17)
Level 58: +3 Perfect Armour (20) [MAX]
Level 59: +3 Rocket Booster (4)
Level 60: +3 Rocket Booster (7)
Level 61: +3 Rocket Booster (10)
Level 62: +3 Rocket Booster (13)
Level 63: +3 Rocket Booster (16)
Level 64: +3 Rocket Booster (19)
Level 65:+1 Rocket Booster (20) [MAX]; +2 Open Portal: GX-9 (2)
Level 66: +3 Open Portal: GX-9 (5)
Level 67: +3 Open Portal: GX-9 (8)
Level 68: +2 Open Portal: GX-9 (10) [MAX]; +1 Mechanic Rage (7)
Level 69: +3 Mechanic Rage (10)
Level 70: +3 Mechanic Rage (13)

Ending with:

Atomic Hammer (20) [MAX]
Mechanic Mastery (20) [MAX]
Mechanic Rage (13)
Heavy Weapon Mastery (20) [MAX]
Rocket...