Tinkers' Construct
A mod for crafting your own custom tools and weapons. Endless possibilities through material trait combinations.
📖 Introduction
Tinkers' Construct has been developed by the SlimeKnights team (boni, KnightMiner, and others) since 2014. It completely rewires Minecraft's traditional crafting-table tool system and bakes the concept 'carry your own tool for the whole save' into a single mod, becoming the de facto standard tool mod in the process. It's MIT open-source and supports a wide range of versions from 1.7.10 through 1.20.1 — but it does NOT yet support 1.21, which is worth knowing up front.
**Five core systems** — the Smeltery multiblock (melt metals into liquids and pour them into Casts to make parts), the Tool Station / Tool Forge (assemble parts into tools), Material Traits (each material has unique properties — obsidian is durable, cobalt is fast, copper grants Luck+1, and so on), Modifier slots (upgrade tools with diamonds, golden apples, books, etc.), and per-tool leveling (tools gain XP as you use them and unlock extra Modifier slots). All five systems mesh inside a single tool.
What sets it apart from other tool mods like Silent Gear or Tetra is **the visualization of materials and the permanence of tools**. The same pickaxe with a Cobalt head + Paper binding + Slime handle looks and performs noticeably different from one with a Manyullyn head + Steel binding + Wood handle. Tools also never destruct — they go 'unusable' instead, and you can repair them to use forever, a feature that almost no other tool mod replicates. The downside is the lack of 1.21 support, which means more recent modpacks are increasingly skipping it; worth checking your modpack version before assuming it's included.
In 1.20.1-based kitchen-sink packs like ATM10 and ATM10 Sky it holds one of the late-game weapon pillars. ATM10 Sky in particular constrains material choice, which makes Modifier planning into a real puzzle. From experience, carrying one self-designed pickaxe across an entire save creates an attachment that's genuinely hard to explain — most players who finish a Tinkers playthrough say they can't go back to plain diamond pickaxes afterward.
🕒 When to Use This Mod
The right window opens around the time you'd otherwise be making iron tools — that's when starting a Smeltery actually pays off. Go in too early and you'll just bleed hours collecting Seared Bricks; go in too late and other tool mods will already have filled the slot. The sweet spot is the moment you think 'I need a tool upgrade soon,' before you commit to any other path.
📦 Where It Matters Most
In ATM10 and ATM10 Sky it holds one of the late-game weapon pillars. ATM10 Sky in particular forces tighter material choices because of the skyblock setup, which makes Modifier planning a real puzzle, and the act of designing your own tool from scratch breaks up the otherwise template-heavy feel of a kitchen-sink pack better than most other tools-focused mods manage.
🎮 How It Changes Your Playthrough
Tools start feeling like yours for the first time. Two pickaxes made from different materials behave noticeably differently, and watching one of them level up through use and accept a Modifier scratches the same itch as raising a character. After hours of throwing away broken vanilla tools, holding onto a single self-designed pickaxe across an entire save creates an attachment that's hard to explain until you've felt it.
🚀 Getting Started — First 30 Minutes
Tinkers' Construct feels the most tedious right up until the Smeltery is running — and then everything opens up. Following the flow below for the first 60 minutes lands you a working Smeltery and your first custom pickaxe.
Step 1 — Stockpile Seared Bricks (15 min)
Every Smeltery block is built from Seared Bricks. Simple recipe, but the quantity is what eats time.
- Make Grout from regular Gravel + Sand + Clay (one per block)
- Smelt Grout in a regular furnace → Seared Brick. Running 4–5 furnaces in parallel is strongly recommended
- Combine 4 Seared Bricks into a Seared Brick Block
- Side task: harvest extra sand for clay farming via early-game Punji Sticks or similar tools
Minimum target: roughly 70–100 Seared Bricks, enough for one 5x5x4 Smeltery. Making 100 in one go leaves you breathing room for later expansion.
Step 2 — Assemble the Smeltery multiblock (15 min)
Once you have enough bricks, build the Smeltery proper.
- Place a 3x3 floor of Seared Brick Blocks (9 blocks total)
- Build walls 3 or 4 blocks high around the outside, leaving the middle hollow
- Add a Seared Faucet (output spout) + Seared Drain (drain) + Seared Tank (liquid storage) into one wall
- Place a Smeltery Controller in another wall — this is what activates the multiblock
- Right-clicking the Controller opens a GUI = activation succeeded
My first Smeltery had me stuck for 30 minutes because I'd placed the Controller wrong — the Controller must be oriented so its interior face points into the Smeltery cavity.
Step 3 — Your first custom tool (20 min)
Now the actual reward.
- Pour 1–2 buckets of lava into the Smeltery to start it (keeps it liquid)
- Make Casts using iron + clay — you need 3 (pickaxe head, binding, handle)
- Melt iron ingots in the Smeltery and pour the liquid iron into the Casts to make parts
- Assemble the 3 parts at the Tool Station → your first custom pickaxe is done
Recommended early combo: Cobalt head (fast) + Paper binding (+1 Modifier slot) + Slime handle (+50% durability). Excellent cost-to-performance ratio, and you can swap the head to Manyullyn later without rebuilding everything.
Where to go next — past the 60-minute mark
- Modifier slot upgrades: 1 book = Sharpness 1, diamond = Luck +1, golden apple = auto-repair, cobweb = speed
- Tool Forge: upgraded Tool Station that unlocks heavier weapons like the Cleaver and Excavator
- Manyullyn alloy: late-game endgame head material. 1.16+ uses *Cobalt + Debris (Netherite Scrap)*; 1.12.2 and earlier uses *Cobalt + Ardite* (Ardite was removed in newer versions)
- Slime Sling / Slime Boots: Tinkers' signature movement gear — that 'bouncing on a slime' feeling, turned into items
Searching 'Tinkers' in JEI shows every material's traits and recipes in one view, so keep it open whenever you're designing a new tool.
💡 Gameplay Tips
- Building a Smeltery is your first goal. Start by crafting Seared Bricks.
- Check material traits in JEI and plan your desired combinations in advance.
- Tools don't break—they become 'unusable' instead. Don't panic, they can be repaired.
- Modifier slots are limited, so choose your modifiers carefully.
- Tinkers tools can't be enchanted normally — opening an enchanting table just refuses to accept them, and that's working as intended. Instead, you slot Modifiers like books, diamonds, and golden apples to upgrade them, and that 'wait, all my saved enchantment books are useless on these?' moment is basically a rite of passage for first-time Tinkers users.
⚠️ Common Confusing Points
- • The Smeltery requires lava to function.
- • Vanilla tool recipes may be disabled (depends on modpack settings).
❓ FAQ
Where do I start with Tinkers' Construct?
Building a Smeltery is non-negotiable as the first step. Without one you can't make any Tinkers tool, so gathering gravel/sand/clay → Grout → Seared Bricks → assembling the 5x5x4 Smeltery multiblock is your first 30–40 minutes. Once it's running, the rest of the mod is just the fun of designing tools.
Can I use Tinkers in 1.21 modpacks?
No — as of May 2026, Tinkers' Construct does not officially support 1.21. It's only stable up through 1.20.1. A few unofficial ports and spiritual successors (like Tinkers' Reforged) exist, but their polish doesn't match the original. If you want Tinkers and you're picking a recent modpack, your safest bet is a 1.20.1-based pack like ATM10 or ATM10 Sky.
The Enchanting Table won't accept my Tinkers tools.
That's working as intended. Tinkers tools use **Modifier slots** instead of standard enchants, so the Enchanting Table interface simply refuses them. Instead you upgrade by feeding Modifier materials directly into the slots — book = Sharpness, diamond = Luck, golden apple = auto-repair, and so on. It feels limiting at first, but once you get used to it, it's actually far more flexible than vanilla enchanting.
I poured lava into the Smeltery and nothing happens.
Two likely culprits. First, the Smeltery Controller is placed wrong — its front face has to point into the Smeltery's interior cavity for activation. Second, the multiblock structure has a hole or a wrong block somewhere. If right-clicking the Controller doesn't open a GUI, the multiblock isn't actually activated; cross-check with the guidebook or JEI's multiblock preview block-by-block.
There are too many material combos — what should I pick?
The standard recommended combo is **Cobalt head + Paper binding + Slime handle** — though Cobalt requires Nether mining, so this is really a 'mid-game' build rather than your literal first day. Cobalt mines fast, the Paper binding gives +1 Modifier slot for late-game flexibility, and Slime handles add +50% durability. For actual early game, **Iron head + Paper binding + Wood handle** is plenty. For the late-game **Manyullyn** alloy, the formula depends on version — **1.16+** uses *Cobalt + Debris (Netherite Scrap)*, while **1.12.2 and earlier** uses *Cobalt + Ardite*. Ardite was removed in newer versions.
📦 Modpacks With This Mod
Hexxit Revived
A modpack reviving the 2013 Technic Hexxit's adventure-RPG feel on 1.20.1 Forge. Centered on dungeon exploration, classic-style magic, and modular weapons, with plenty of content you haven't seen in recent kitchen-sink packs.
🎯 Best for A fit for family players who want the dungeon-exploration and loot-hunting adventure vibe without the steep learning curve of a full action-RPG pack.
All the Mods 10
The latest in the ATM series. A massive kitchen-sink modpack with over 400 mods to freely explore. Built on 1.21 NeoForge for the newest content available.
🎯 Best for A good fit if you want automation, magic, and exploration all in one pack.
All the Mods 10: To the Sky (ATM10SKY)
ATM10's massive mod lineup reimagined as a skyblock progression challenge. Start from a single tree and build infinite possibilities through tech and magic.
🎯 Best for Best for players who enjoy fitting factory lines into tight, vertical space — automation as design puzzle.