Consider adding:
Prized Statue
Nimblewright Schematic
Encroaching Mycosynth - Fixes the problem of "This isn't an artifact"
Metallic Rebuke
Reality Heist - Dig for artifacts
Savage Alliance - Give my army of constructs trample, and/or sweep opposing chump blockers/mana dorks
Archetype of Aggression, Ferocity of the Wilds - Give my army of constructs trample
Wurmcoil Engine
Mishra + Phyrexian Dragon Engine - Mishra works well with my tokens anyway, and the meld beast is amazing
* Chief Engineer - Half the deck is artifacts, so this should be useful. Could replace a land
* Grand Architect - Needs Pili-Pala for infinite combo, but can work as ramp or just an anthem without him
Anointed Procession - Double tokens
* Reckless Fireweaver
* Efficient Construction - Make lots of tokens?
* Feldon - Make some sweet tokens for Brudiclad, assuming I have something good in the yard
* Thirst for Knowledge - Cheap, instant speed draw with flexibility
Paradoxical Outcome - Late game I can bounce a bunch of rocks to draw a new hand
Whir of Invention - Except for the ThopterSword combo which I would like to not use every game, and Brudiclad which I don't really want to pay 9 mana for (when that probably includes tapping tokens), there aren't really that many artifacts I need to see every game, but this can be used as a utility tutor
Cloud Key - Another cost reducer, but this one can't hit people
Paraselene/Tempest of Light - Destroy all enchantments (in case of Stony Silence)
Leave No Trace - Destroy a Stony Silence and all other white enchantments
Wipe Clean - Destroy a Stony Silence (or other critical enchantment), or cycle if not playing against Stony Silence decks
Goblin Engineer - Recursion, and doesn't go in any other deck (except high power)
Lightning Greaves, Swiftfoot Boots - Protect Breya or other important creatures, use Arcum immediately etc
Talisman of Dominance/Progress/Creativity - 2-mana blue rocks
Mind Stone - Rock that can draw
* Reprocess - Turn thopters or extra rocks/lands into cards
Thoughtcast, Deadly Dispute, Costly Plunder, Artificer's Epiphany - Draw a couple of cards for cheap
Gilded Lotus
Jhoira's Familiar - Discount for almost all my spells
Inspiring Statuary - Ramp with my thopters
Vedalken Orrery - Flash
Sandstone Oracle - One big draw

Mind's Eye - Artifact that gives me a some staying power
Coveted Jewel - Draw 3, get a Gilded Lotus and just sac it if someone tries to steal it
One with the Machine - Can draw a chunk of Cards, but the times I need it most it can easily whiff
Treasure Map + treasure generators (e.g. Deadeye Plunderers)
Hedron Archive, Dreamstone Hedron - Colorless rocks that can be turned into cards later
Staff of Domination - Mana sink and Swiss army knife, mostly for card draw with large amounts of mana
Salvaging Station - Get back the sweet 1-drops, goes infinite with a Flayer Husk and Ironworks
Witching Well
Witch's Cauldron
Etherium Astrolabe - Turn thopters or spare rocks/lands into cards, but can only draw one card per turn
Culling Dais - Can turn thopters now into cards later, but it's slow to set up
Arch of Orazca - Draw on a land
Dance of the Manse
Crashing Drawbridge - Hasty dudes on demand, and it's an artifact that we can sacrifice
* Phyrexian Rebirth - Boardwipe that makes an artifact for Brudiclad to copy
* Saheeli's Artistry, Mimic Vat - Make tokens that Brudiclad can copy
Mechanized Production
Masterful Replication
Thopter Engineer - More haste and creates a token
Steel Overseer, Master of Etherium, Master Trinketeer, Tempered Steel, Chief of the Foundry - If I want to go heavier on beatdown with bigger tokens
Pia and Kiran Nalaar - Make a few thopters or use existing tokens for damage
* Brass's Bounty - Make lots of mana for later, or lots of tokens for Brudiclad to kill with
Staff of Nin
Mirrorworks - Copy my artifacts, make tokens for Brudiclad to use
* Vedalken Archmage - Card draw, but very fragile
Clone Legion - Get a bunch of tokens for Brudiclad
Whirler Rogue - Makes two tokens, and can give unblockable to Silas or Battlesphere, but can't be recurred and is otherwise not that interesting
* Ugin, the Ineffable - Card advantage and discount?
Salvaging Station
Reshape - Tutor straight to the board
Atog
Krark-Clan Shaman
Leonin Abunas
Ashnod's Altar - Probably rarely want to sacrifice creatures that aren't artifacts, and Krark-Clan Ironworks is just better for that
Sculpting Steel
Master's Call
Sram's Expertise
Blade Splicer/Wind Splicer/Master Splicer
Panharmonicon - Consider depending on the amount of ETB effects
Vedalken Engineer - Incredibly fragile, has summoning sickness, and is more difficult to recur. It does add TWO, though
Filigree Angel - Hopefully enough other lifegain, and 8 mana is A LOT. If I have enough artifacts for this to gain an amount of life worth 8 mana, I probably don't need it? Would be sweet to recur with e.g. Master , though..
Mirage Mirror
Spine of Ish Sah - Currently using in Brago instead, but it's on-theme, good removal
The Antiquities War - Card advantage into win con, but it's telegraphed
Aligned Hedron Network - Doesn't remove much of my stuff

* Ghirapur Aether Grid - Something to do when I'm drawing blanks or when I can't attack
Walking Ballista - Great with Sydri, but otherwise probably too expensive
Contraband Kingpin - Early play with a little value attached
Hellkite Igniter - Evasive dude that can easily one-shot opponents
Supreme Verdict - Great boardwipe, but I might not need or want it, being the aggro deck
Expedition Map - Get any land. Great with recursion, but meh without
Curse of Opulence - Get loads of artifacts

Ash Barrens
Sunken Hollow
Hallowed Fountain
Darkslick Shores
Seachrome Coast
City of Brass

Consider (don't have):
Mishra, Eminent One - Turn all my thopters into a wellspring or something
Organic Extinction
Hedron Detonator - Fireweaver effect with card advantage abilities
$$ Karn, Scion of Urza - structs, baby!
$$ Treasure Nabber - Steal their rocks then sac them
Sicarian Infiltrator - Make tokens and draw cards
Mishra's Self-Replicator
Skorpekh Lord - Makes my thopters and servos hit twice as hard and make them harder to block
Quicksmith Spy - Draw an extra card per turn, but only unless this dorky dude dies
Resourceful Return - Get back a killed dude and draw an extra card
$ Tezzeret, Artifice Master - Card draw and token generation
$$$$$ Mycosynth Lattice
$$$ Dack Fayden
$ Scarecrone
$ Angel of Invention
$ Tezzeret, Cruel Machinist - Card draw or 5/5 beaters

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Consider cutting:
* Helm of the Host - Get copies of anything. How about another Breya, or Alibou? How about everything becomes an Alibou when I have Brudiclad? Really expensive to deploy + use, though
Alela - 4 mana for a non-artifact that requires me to play other spells to do the thing, but it does pump my thopters immediately and is a decent blocker, and she is legendary for Relic
Faerie Artisans - Can get some sweet tokens for Brudiclad to copy, but costs 4 to play and my opponents get to control which token I end up with, but at least I can sac the tokens for value before they get replaced
Prototype Portal - Making artifact lands for free is the dream, but otherwise this is unlikely to make me many tokens. Becomes much better with Unwinding Clock and an animation effect in the deck
Digsite Engineer - 2 mana might be too much to pay for a construct when I also need to cast a spell to trigger it, but it's worth trying out
* Trinket Mage - This will almost always get Skullclamp, but the ability to get a land if I need it is nice, or an early Esper Sentinel if I don't have token generation
Osgir - I don't have a lot of ETB artifacts, and the great artifacts have high CMC, but he does create two tokens for Brudiclad, and with an artifact land in the yard he's free to use
Losheel - Not an artifact. Protects my tokens when attacking, but not when defending. Can draw me cards, but only one each turn. Nice together with Faerie Artisans
Generous Gift - Not very thematic, but it is my only out to a Stony Silence, and it does make a token if I need a 3/3 to push for lethal with Brudiclad
Saheeli, the Gifted - With lower curve, there's less stuff that can use the full discount, and she's probably going to die before I get to ult her. If I do get to ult her though, it is likely going to be amazing
Wake the Past - 7 mana is a lot, and it requires me to either have a stacked graveyard already or a lot of mana so I can sac stuff before I cast it. The haste will not always be relevant either
Cranial Plating - Pretty good to slap on a thopter to punch through a chunk of damage, and the ability to move it around at instant speed is pretty strong. It is a bit boring, however
Kuldotha Forgemaster - The cost is pretty high, but tutoring straight to board is pretty nice, and I'm likely to have expendables
Ichor Wellspring - It draws a few cards, and it's free to sac, but it's probably too grindy for the token aggro plan
Saheeli, Sublime Artificer - This is mostly here just for the static, and servos are not that great, but they are both artifacts and tokens. The minus doesn't have a lot of useful applications since a lot of my creatures are legendary, but the dream is copying Sharding Sphinx. It's a planeswalker, though
Shimmer Myr - It's a bit boring, but it having flash does let me pass with all my mana up for a big surprise
Scrap Trawler - Too slow and grindy?
Goblin Welder - I don't have a lot of amazing targets for this, but it can also often be used to remove dangerous artifacts from my opponents. Might be more needed in Chiss-Goria
Mirrodin Besieged - It's an enchantment, but both modes are very relevant. The first mode can be played early to get a steady stream of tokens throughout the game, while the second mode can be used to win quickly after a long, grindy game
Tezzeret, Master of the Bridge - Expensive to cast, and could be hard to protect if I need him for multiple turns, but the plus ability is a nice surprise finisher, and the static is great to make up for the fact that he's expensive
Dispatch - Should maybe be Swords since that is always active, but except very early turns, this is likely better
Smothering Tithe - Annoying, and it's not an artifact, but it supplies artifact tokens, and the treasures are obviously useful without Brudiclad and Breya as well
Storm the Vault - It's an enchantment, and requires connecting with something, but I'm likely to be able to flip it immediately if I connect, which will give a huge advantage
Marionette Master - I really want both of the modes, but 6 mana for a non-artifact, non-legendary creature might be too much
Time Sieve - No one likes extra turns, and five artifacts is a lot to sac just to get one extra turn. Although it is a nice use of chump blockers, and goes fully infinite with ThopterSword combo
Sol Ring - I have access to so many colored mana rocks that this could be better used elsewhere
Thopter Foundry / Sword of the Meek - Combo might be better used as a wincon in Esper

2nd Plains - Too narrow, but does come in untapped
Path of Ancestry - ETBT
Underground River
Shivan Reef
Adarkar Wastes
Flooded Strand
Xander's Lounge
Raugrin Triome
Watery Grave
Steam Vents

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Cuts before playing:
Grip of Phyresis - Too narrow
Mirrorweave - If I have enough dudes for this to matter, I'm probably winning
Read the Runes - I probably have enough card advantage and sac outlets that I don't need this narrow card
Dispense Justice - Too narrow while not guaranteed to do what you want
Vedalken Certarch - Too narrow and fragile
Herald of Kozilek - Cut because even though many of the creatures are artifacts, they are not always colorless. Might be good enough depending on final number of creatures vs artifacts.
Etherium-Horn Sorcerer - Way too expensive for its effect
Broodstar - If I have loads of artifacts, I'm probably winning anyway. Probably don't need ONE big beater, at least not with flying as only form of evasion. It could be a very cheap giant, though.
Blinkmoth Infusion - Needs lots of artifacts that want to be untapped, and not just creatures.
Syndicate Trafficker - Sac outlet that isn't free and only grows himself. Consider against many boardwipes.
Etched Champion - Don't need equipment carriers, and he's tiny otherwise. And protection doesn't stop board wipes.
Burnished Hart - Not enough basics, probably, but being able to sac itself and make "removal-safe" ramp is worth considering.
Vial Smasher the Fierce - Too aggressive and not very synergistic with the rest of the deck (needs Broodstar etc to make sense)
Pilgrim's Eye - Only gets basics, and doesn't put onto the battlefield
Karn, Silver Golem - Don't really want to go beating with my non-creatures that often, and Sydri already does this. The activated ability can also get opponent's artifacts in their own boardwipes, but that is probably rare.
Torrential Gearhulk - Not enough instants
Inkwell Leviathan - Doesn't really do anything
Chromescale Drake - Ok, so it draws a few cards, MAYBE. Then what?
Enlightened Tutor - I have other tutors, and this is expensive. Save it for Brago?
Whipflare - Do I even care about small dudes, and if I do, is sorcery speed good enough to stop things?
Claws of Gix - Sacs artifacts and creatures alike, but requires mana to do so
Flayer Husk - Does "nothing" if it's not used to combo
Pyrite Spellbomb - Does "nothing" if it's not used to combo
Cultivator's Caravan - A random 5/5 that requires 3 power of creatures to use is of no use, and we have enough other mana rocks
Spear of Heliod - We don't need a random anthem, or the removal (probably). Save it for Teysa!
Whip of Erebos - Hopefully we have enough other ways of lifegain, and we don't want to exile things from our yard!
Pia Nalaar - Not great vs many blockers, and requires a lot of resources put into a single attacker
Sphinx of the Steel Wind - I probably have enough lifegain from other sources, let's try without this first
Cyclonic Rift - This is great, but let's try a deck without!
Salvaging Station - Only returns the 1-cost ones, so pretty useless without Flayer Husk
Restoration Gearsmith - Only works once, and has no other synergy. The only reason to include would be that she can also get back creatures
Angel of Invention - Don't need that many anthems, and she's pretty fragile herself
Swords to Plowshares - Let's hope permanent-based removal and Dispatch are enough
Duplicant - Relying on other removal
Stoic Rebuttal - Hoping to not need many counters
Render Silent - Hoping to not need many counters
Arcane Lighthouse - Only have one at the moment
Jor Kadeen - Don't know if my Thopters need the pump tbh
Bident of Thassa - Probably enough card draw elsewhere
Boompile - Too unreliable
Clock of Omens - Don't have enough artifacts that I need to untap
Hedron Archive - Need my rocks to produce colors
Boros/Orzhov/Rakdos Signet, Talisman of Indulgence - Cutting rocks that don't produce blue
Prismatic Geoscope - Probably rarely adding colors
Whispersilk Cloak - Besides Silas, who really needs to connect? And most creatures are relatively dispensible
Razor Hippogriff - Will rely on other lifegain
Vandalblast - Probably have enough other (recurable) artifact hate
Cataclysmic Gearhulk - I want to have stuff on the board. Let's try without a boardwipe!
Sanctum Gargoyle, Junk Diver - Unimpressive by themselves, and hopefully I have enough reusable recursion
Boros Garrison, Orzhov Basilica, Rakdos Carnarium - Remove non-blue-producing, non-utility lands
Reliquary Tower - Eh, don't really need infinite hand size
Crystalline Crawler - I probably have enough mana, and this is very bad when recurred
Trophy/Treasure Mage - Too narrow?
Akiri, Line-Slinger

Cut lands:
Rupture Spire - Too many tapped lands, replacing with Spire of Industry
Azorius Chancery / Dimir Aqueduct / Izzet Boilerworks - So slow
Opal Palace - Do I have the spare mana to filter? No synergy with the counters
Ghost Quarter - Need more colors on my lands
Bojuka Bog - Maybe more needed elsewhere
Izzet Boilerworks, Azorius Chancery - Slow and risky, but helps me with extra land drops
Nomad Outpost - Slow
Grand Coliseum - Slow
Terramorphic Expanse + Evolving Wilds - Slow and I don't really need the lands in the yard
Prairie Stream - Not enough basics for this
? Buried Ruin - Colorless land, and I don't need this specific way to get back ONE artifact that much
? Spirebluff Canal - Nice early game but crappy late, and Murk needs it
? Inventors Fair - Colorless, a pain to keep up the lifegain, and I might not need/want the tutor
Arcane Sanctum, Crumbling Necropolis, Mystic Monastery - Slow

Cuts:
Nihil Spellbomb - It's reusable, but it's really only reusable to clear graveyards, which isn't always relevant. Probably the best alternative, though
Saheeli Rai - It's probably not going to activate more than once or twice, and then she's probably just not worth it
Counterflux - How likely am I of drawing this single counterspell in time to stop something important? It's not so important to protect my own stuff
Mycosynth Wellspring - Not that good to recur a lot since I don't have a lot of basics
Beacon of Unrest - Although I do recursion, and this gets artifacts, the card doesn't feel on theme enough and probably has better replacements
Metalwork Colossus - Sure, it can be cheap, and it can be returned from the graveyard after a boardwipe by saccing some mana rocks, but it's too easily chumped and doesn't do much else
Talisman of Progress - Enough mana rocks, and this can be used in other decks
Combustible Gearhulk - CAN burn for a chunk or draw some cards, but could just as easily whiff
Muzzio - Slow and expensive
Memnarch - Too expensive, both to cast and to use
Talisman of Dominance - Shave on rocks
Ethersworn Canonist - It can slow down explosive turns, but a lot of turns are just one big spell, alternatively combined with abilities. Also can just be killed at the start of a big turn
? Feldon - Good if I can recur something like Sharuum or a Noxious Gearhulk, but not very impactful otherwise
Ethersworn Adjudicator - Expensive to use more than once, and I need to untap with it for it to do anything. It is one of very few ways to deal with enchantments, though
Reckless Fireweaver - The chip damage is more likely to get me targeted than kill someone
Revel in Riches - Better used in Teysa
Tezzeret, the Seeker - Moved to Sharuum
Sharuum - Moved to her own deck
Noxious Gearhulk - Moved to Sharuum
Tezzeret, Agent of Bolas - Moved to Sharuum
Oblivion Stone - Don't really have the mana to make this one-sided, at which point it's not very efficient. Moved to Sharuum
Sphinx Summoner - Moved to Sharuum
Silas Renn - Getting him to connect is probably hard since he dies to almost anything, although the deathtouch helps
? Master Transmuter - Moved to Sharuum
Blinkmoth Urn - Don't want to give others the mana, and I don't have great mana sinks
Soul of New Phyrexia - Great instant speed tutor target to protect my stuff, but pretty expensive
Tezzeret, Master of Metal - The minus is only good if I'm already in a good position, and can only hit one opponent
Executioner's Capsule - I have so much removal in Breya that I probably don't need this
? Arcum Dagsson - Might want to cut down on tutors, although Arcum can also work as removal against things like Blightsteel, Esper Sentinel, Phyrexian Metamorph or Steel Hellkite
Open the Vaults - Replace with Wake the Past to make this one-sided since I don't have a lot of enchantments anyway
Saheeli's Directive - Genesis Wave is nice, but only if I have a lot of mana. I'm unlikely to have enough mana to make this amazing unless I have Saheeli the Gifted or infinite mana
Sydri - Giving deathtouch to a chump blocker is nice, but I probably won't get much other use out of this and I need to up my artifact count
Raff Capashen - Flash for most of my spells is nice, but he is not an artifact himself. Would rather play Vedalken Orrery
Thopter Assembly - With a focus on tokens, it is becoming increasingly unlikely that I have no other thopters. However, this lets me freely sac my thopters for value since I can get 5 more from this whenever I run out
? Hellkite Tyrant - I get lots of artifacts, so this is likely to let me win on the next turn, but it's 6 mana for an otherwise not very synergistic card
Scourglass - Mostly one-sided, but I have to untap with it, and it can only be popped during upkeep, so I can't use it to respond to a surprise threat
? Daretti, Ingenious Iconoclast - The 1/1 defenders are basically just chump blockers, unless I have Brudiclad and some good tokens. This will likely just destroy something then tank a few hits, unless I have a bunch of chump blockers, in which case I might be able to do it one more time
Spell Swindle - The tokens are nice, but 5 mana is a lot
Disciple of the Vault - The chip damage is more likely to get me targeted than do something useful, but Disciple can disincentivize a board wipe
? Nim Deathmantle - Basically just a combo-enabler, but does let me sac creatures to Breya and get them back
? Shimmer Dragon - I need this in Azorius equipments, and this is an expensive flier that is not an artifact itself, plus most of my artifacts here I probably want to attack with or tap for mana. Could still draw some extra cards, though
Oswald Fiddlebender - Not an artifact, and can be better used in Silas+Ardenn
? Thopter Spy Network - "Guarantees" a thopter every turn, but it's still just A thopter, and ONE card if I connect with any number of creatures. Plus it's an enchantment
Dispeller's Capsule - Expensive to use and I don't actually have a lot of recursion right now, but I probably do need some removal for enchantments and artifacts
Darksteel Ingot - Upgraded to Skyclave Relic
Trading Post - Probably too slow and grindy
Tribute Mage - Will likely always search for a piece of the ThopterSword combo, but being able to get a rock in need is nice. With Sieve in the deck, this might be too boring
Trash for Treasure - Recursion is nice, but is 3 mana and a sac too much for one thing?
Daretti, Scrap Savant - Probably too slow and grindy for the tokens aggro plan
Myr Retriever - Probably too slow and grindy for the tokens aggro plan
Nev's Disk - Slow, and probably not worth it without Darksteel Forge and recursion
? Fabricate - Cut down on tutors
Commander's Sphere - 3 mana for a basic rock is not worth it when I have access to so many 2-mana rocks
Hammer of Purphoros - Do I really need the haste, and are lands dispensible just to get a 3/3?
Rise and Shine - The non-overload mode is unlikely to be used, and at 6 mana as a sorcery, this might not be worth a slot when I have Cyberdrive
Hangarback Walker - Great to sac when it's big, but getting it big might be a problem
Scrap Mastery - A cheaper, but riskier Wake the Past. Can be used as an artifact sweeper, but will also give people back strong artifacts that have been dealt with. Could also cost me a lot of mana considering the number of artifact lands
Third Path Iconoclast - Doesn't trigger off of artifact creatures, and isn't an artifact itself. It does trigger off non-creature artifacts, though, in addition to enchantments etc, and it can be played early or before dropping a lot of rocks etc
? Darksteel Forge - Expensive, and not really essential for the plan. More relevant if I can cheat it out
Mystic Forge - Card advantage and combo with Top and cost reducer, but not critical and probably more needed elsewhere
Sensei's Divining Top - Since I have Mystic Forge and cost reducers anyway, I might as well go infinite. It's probably useful even without the Forge, as a cheap artifact with deck manipulation, but it's also an easy cut if there's no Forge