With this deck, which seems to rely on one combo, you can actually win in multiple ways. When building this deck, I had five possible win conditions in mind.
Win Condition 1
Pia's Revolution together with
Scrap Trawler and
Foundry Inspector, and of course card that let you kill your own artifacts like
Ravenous Intruder or
Herald of Anguish. - This combo has the potential to completely destroy your opponent. Imagine you having
Pia's Revolution,
Ravenous Intruder and
Scrap Trawler on the field. You can sacrifice an
Ornithopter. Your opponent has no other choice than to take the 3 damage, since otherwise you take it back to your hand and play it again for free, after which the can get killed by a really buffed up
Ravenous Intruder with
Rush of Adrenaline or pinged down by
Reckless Fireweaver. Once you sacrifice your lowest converted mana cost artifact, sacrifice the second lowest, for example
Implement of Combustion. It does actually leave the battlefield and go to your graveyard, so any actions that say "when (this card) is put into a graveyard from play, (effect)", do trigger. The most important way this effect comes into play is with Scarp trawler. You get to return a card with lesser CMC, in this case
Ornithopter. Your opponent has to decide whether or not take 3 damage or return
Implement of Combustion to your hand. Your opponent lets this happen for as long as you have mana to play
Implement of Combustion which together with
Foundry Inspector again forces your opponent to take 3 damage.
Win Condition 2
Ravenous Intruder - This card has the potential to burst down your opponent in one turn. However, unlike similar cards like
Salivating Gremlins, this card doesn't have trample. So the only way to make this work is by either killing your opponent creatures before attacking, or giving them trample using
Rile. With the combo this deck runs, you will be able to alpha strike your opponent.
Makeshift Munitions is just a different version of
Ravenous Intruder, More of burn oriented, but less effective in my opinion. Only add this if your opponent has lots of creature removal.
Win Condition 3
Reckless Fireweaver - This card is the reason your opponent can't just let
Ornithopter or the implements with
Foundry Inspectors get back to your hand with
Pia's Revolution infinitely. This deck has the potential to cast a lot of artifacts in one turn. It just makes the combo even more deadly.
Win Condition 4
Herald of Anguish - With the low artifacts cards in this deck, casting
Herald of Anguish can be done in turn 3 or 4 at the earliest. This card has evasion, is insanely strong, can sacrifice artifacts and kill creatures doing so, and makes your opponent discard cards.
Sideboard win Condition 5
Marionette Master - If your opponent has the perfect cards/sideboard cards against you, and completely destroys your creatures or enchantments before they can become active, you can always fall back on plan B. Much like
Reckless Fireweaver this cards theoretical damage output scales with the amount of artifacts in the deck. But unlike
Reckless Fireweaver, this card deals damage when the artifacts
leave the battlefield, rather than enter it. This effect works with tokens as well. The card gives you an option, get 3 1/1 servo tokens and a very weak creature for
, which deals 1 damage every time an artifact leaves the battlefield. Or, a strong 4/6 creature whom deals 4 damage whenever an artifact leaves the battlefield. In this deck, you would choose the last ability nearly all the time. You should have no problem getting (or already having) a couple of artifacts on the field which you can then sacrifice. 5 artifacts is all it takes to achieve fatal damage. Very strong card, which ends games that take too long. The only time you would want to use the fabricate to create 3 1/1's is when you have no other artifacts in your hand or field, and a couple of
Reckless Fireweavers or when you have no artifacts and a
Ravenous Intruder and
Rile.