MONSTERS

Machina Fortress x3
Machina Gearframe x3
Machina Peacekeeper x1
Cyber Dragon x2
Scrap Recycler x1
Yellow Gadget x2
Green Gadget x2
Red Gadget x2

SPELLS

Book Of Moon x1
Monster Reborn x1
MST x2
Shrink x2
Smashing Ground x2
Lightning Vortex x1
Dark Hole x1
Giant Trunade x1
Machina Armored Unit x1
United We Stand x1
Mage Power x1
Solidarity x2
Limiter Removal x1

TRAPS

Seven Tools x1
Solemn Judgment x1
Compulsory x1
Torrential x1
Mirror Force x1
Bottomless x2
Royal Oppression x1

err..... is this post not in wrong topic ? sorry if i bother you.

~Moved.

you could use future fusion with chimeratech overdragon (fusion mosnter) :]
also pot of avatrice and pot of duality works well with gadgets.

also trap stun works better then seven tool thingy :/ ...

maybe gear town and gadjiltron(maybe). free monster with 3000 attack.
imperial iron wall if you like
skill drain for kill a lockdown
royal decree for aggresive play
chimera fortress and his buddy that i forgot the name for cyber dragon
combo future fusion and overlord fusion for OTK
just an opinion

Machine force > Peace Keeper
Forbiden Lace > Shrink

The rest dpends on how you want to build your deck.

For control machina, you need to conenctrate the deck into the defense. So play a lot of traps, lot of 1 for one cards, pot of avarice to recycle your engine and keep the hand advantage

for Explosive machinas you play less traps, you play 2 birdmans so you can blackrose the field pretty easily and then go for OTK. you play this version with 2 machina force so after you explode the field you can sp sumon fortress easily ans force is a searchable monster reborn ! you can also try this version with geartown wich is a very good card against Gravekeepers cuz you destoy their field and when they destoy yours, you get a plus.

there is also the gadget synchro spam wich plays tengu, plant engine and ultimate offering. make up your mind on wich type of machina you want to play and it will be easier for people to fix the deck

Hope I helped !

I would advise making these changes

replace both equip spell for 2 solemn warnings. the equips are kind of pointless since you are running solidarity. I would also replace machina armored united with a d prison or a smash. shrink can also be replaced by forbidden lance or karakuri ninja sazank (really good against shi en, which I always have problems with)