The main combo is Steel Overseer and Animation Module. Arcbound Crusher and Arcbound Reclaimer helps trigger Animation Module. Arcbound Crusher becomes a power house if you can get him out early as every card is an artifact. Arcbound Reclaimer is good if anything dies. All of the Arcbounds have modular which means if they die they pass their +1/+1 counters to a different artifact creature.
Bronze Guardian protects against any opponents instants, sorcerys, or abilities. Cryptic Trilobite helps pay for any number of the artifact's abilities like Animation Module, Mind's Eye, Prototype Portal and Mirrorworks.
Stonecoil Serpent is just a solid card. Reach, trample, and protection from multi-color cards. With a 1 to 1 ratio for mana to attack and defense it's a pretty cool card. Can be as powerful as you need it to be. If you need it to just trigger other cards pay 1 mana. If you need it to be a powerhouse attacker pay 10. If you need it just as a wall pay 1 mana more then their strongest creature.
Prototype Portal combos well with Sculpting Steel as it only costs 3 and you can continue to copy any other cards in the deck. Prototype Portal also combos well itself. By exiling another Prototype Portal you can continue to use it for as many other cards as you want. If you put artifact land into the deck you would be able to put out two land per turn if you wanted to.
Foundry Inspector reduces mana cost for all artifacts. Have enough of them and half the deck is free. Lodestone Golem helps prevent opponents from even playing spells. Sculpting Steel can become any other card in the deck as all cards are artifacts.
Phyrexian Triniform is a late game card. Although if you can get Urza's Tower, Urza's Power Plant, Urza's Mine, and Sol Ring all in the first three turns you can get him out turn three. If he dies he becomes a bigger threat as he splits into three 3/3 tokens and can still come back for one turn. Cryptic Trilobite can help pay for this as an ability in the graveyard is still an ability.
Cosmos Elixir is pretty great passive card. Put it out early enough and you should be drawing cards quickly. And it slowly heals you. Which this deck does not have great life gain. Plus with Sculpting Steel you can copy this and either draw two cards or gain 4 life. With Prototype Portal and Sculpting Steel you can continue to copy Cosmos Elixir and draw several cards in a turn. With all three Urza lands and Sol Ring you won't be having any issues with paying for anything you draw.
Mirrorworks will help as every card in the deck is an artifact and if you combo that with itself you can have three of these on the field. Which I am pretty sure each card only allows one trigger per card. But that is still epic! The biggest combo is for this card Lodestone Golem. Copying this card you can completely shut down everyone else from even playing. I wouldn't recommend copying him too much though. If you do prepare to not have friends. And with the Sol Ring and the three Urza's land you will not be hurting for mana.
Reckless Fireweaver is a solid card for the deck. Every time an artifact enters the field all opponents take damage. Which is a lot. With Arcbound Crusher on the field every time an artifact enters the field Arcbound Crusher gets a +1/+1 counter. Every time something gets a +1/+1 counter Animation Module can spawn a servo artifact creature for 1 mana. Which then puts a counter on Arcbound Crusher which triggers Animation Module rinse and repeat until you have no more mana. So if you have Reckless Fireweaver, Arcbound Crusher, and Animation Module you can not only spawn tokens but buff one creature and passively do damage to every opponent. And with all the mana ramps we have you should be able to do upwards of 8-10 damage per turn to all opponents directly to their life total.
Forsaken Monument is just an all around fantastic card. Give any card that taps for colorless one more mana, gives life for every colorless card you cast, and gives every colorless creature you have a +2/+2.
Eldrazi Monument is always a good finisher. Really hard to beat flying indestructible creatures. And you will have enough tokens to use it.
Other cards to consider
With the white land we have feel free to put in Blade Splicer and Sensor Splicer. While I tired to keep it only artifacts I can't deny those two cards would be super helpful as most of the creatures you will be attacking with are golems. If you do end up putting them in the deck consider Maskwood Nexus for making everything a golem. Arcbound Bruiser and Arcbound Overseer as they, like the rest of the arcbound cards, have nature ways to trigger Animation Module. With Arcbound Overseer being the better one as it buffs any card with modular and constantly triggers Animation Module. Crystalline Crawler would help the deck open up to things like Hardened Scales or Corpsejack Menace but in my opinion doing that is just trying too hard to do too many things. Walking Ballista I had also consider but it makes the deck too expensive. Like actual money last time I checked it was like 16 dollars and I was trying to keep the deck under a hundred. Urza's Saga would fit the theme decently well. It's way too expensive, and kind of weak, and if I hadn't pulled personally I would never even consider it. Darksteel Forge is a great card and if you already have it and not Eldrazi Monument put it in. While I would love to have it this cards is pricey. I have seen non-english versions are significantly cheaper.
