Surviving the brutal mutant-infested island in Endnight Games' Sons of the Forest requires more than just sharp sticks and crude stone axes. Buried inside underground maintenance bunkers across the map, rare 3D printers serve as lifelines for crafting essential survival gear, tactical equipment, and utility items. If you want to maximize your resource efficiency and stay alive, you need to understand how printer resin works, where to find every machine, and what unique items you can build.
The primary resource driving these futuristic manufacturing stations is printer resin. Each printer comes pre-loaded with a specific amount of resin, and extra canisters are scattered throughout the surrounding bunker rooms. Managing this supply carefully dictates your early-game success, as wasting resin on non-essential goods leaves you stranded when critical tools are required.
Locating Every 3D Printer on the Island
Before you can print any gear, you have to track down the hidden manufacturing hubs. The island features multiple printers tucked away inside underground facilities marked by green GPS points on your tactical map.
The Maintenance Bunkers
The most accessible printer sits inside a non-dig site maintenance bunker on the western side of the forest. When you approach the green GPS marker, look for an overgrown golf cart near a cave opening. Squeeze through the narrow rock tunnel to enter the facility. At the end of the white-lit hallway, you will find a small room containing a cot, a laptop connected to the printer, and several nearby pick-up items.
- Initial Resources: Each printer station starts with roughly 200 ml of printer resin loaded into the hopper.
- Bonus Loot: The surrounding rooms often contain printer resin canisters, printer resin refills, crossbow bolts, and a parallel universes book.
Additional printers require specialized tools like the shovel, rebreather, and rope gun to excavate buried bunker entrances. Exploring these deeper facilities unlocks the same crafting menu but provides vital shelter and weapon upgrades nearby.
Understanding Printer Resin and Crafting Costs
The 3D printer operates on a strict consumption metric measured in milliliters of resin. You interact with the laptop terminal, select the blueprint you want, and wait a brief duration for the physical item to materialize on the build plate.
- Printer Resin: The standard consumable fuel required for every print job. Canisters found in bunkers replenish your supply.
- Print Time: Most standard utility items take between 10 to 20 seconds to fabricate.
Knowing the precise cost of each item prevents you from running dry when you need structural components for advanced armor.
Complete Crafting Inventory and Material Breakdowns
Every 3D printer on the island accesses the exact same software database. You can produce a specific set of gear that cannot be crafted naturally using sticks, rocks, or animal hides.
Utility and Survival Gear
- Flask (100 ml): Essential for water storage, allowing you to carry hydration across long treks through the mountains and forests.
- Sled (1000 ml): A massive resin investment that lets you slide down snowy peaks at high speeds.
- Grappling Hook (100 ml): Required alongside other traversal gear to navigate vertical drops and cave systems.
Tactical and Defensive Items
- Tech Mesh (250 ml): A vital component used to craft high-tier Tech Armor. Combining tech mesh with other rare items yields the strongest defensive protection in the game.
- Printed Arrows (50 ml): Provides a quick ammunition restock for your tactical bow, giving you silent ranged options against aggressive mutants.
- Mask (150 ml): A mysterious item that alters how certain hostile inhabitants react to your presence.
Common Mistakes to Avoid
Players often make critical errors when managing their early game resources. Avoiding these pitfalls saves hours of tedious backtracking.
- Wasting Resin on Sleds Early: Printing the sled costs 1000 ml, which consumes five full resin refills. Doing this too early starves you of tech mesh and arrows.
- Ignoring Container Respawns: While resin canisters don't always respawn instantly, checking back after updates or sleeping cycles can reveal missed loot in adjacent bunker rooms.
- Neglecting Shelter Setup: The initial maintenance room printer bunker contains a sleeping bag. Turning this room into an early base safehouse protects you from surface raids while you organize your inventory.
For more details on survival mechanics, you can read official platform updates on Steam or check community breakdowns on IGN.
Frequently Asked Questions
Do different 3D printers offer different items?
No. Every functional 3D printer on the map shares the exact same catalog of blueprinted items. Finding a new printer simply gives you a safer or more convenient location to craft.
Can you manufacture more printer resin?
You cannot craft printer resin yourself. You must scavenge canisters from underground bunkers, maintenance rooms, and abandoned campsite structures across the island.
What is the most important item to print first?
Printing a flask should be your top priority to solve hydration needs during long exploration runs, followed closely by tech mesh for armor protection.
Do printed items break durability limits?
Yes. Items like printed arrows and tech armor wear down or break after repeated use in combat, meaning you will need to return to a printer periodically for restocks.
