Obsidian portal frames represent one of the most sought-after structural components in sandbox survival, serving as the critical gateway between the overworld and the Nether. Understanding how to make end portal blocks requires precise knowledge of sourcing the necessary materials and executing the construction sequence correctly. This guide details the exact procedures for both locating a stronghold and manually assembling the frame, ensuring players can activate the portal on demand.
Sourcing the Essential Materials
The primary obstacle in creating an end portal is the acquisition of Eyes of Ender, which function as the activation medium for the frame blocks. Players must first craft Blaze Powder by placing Blaze Rods—obtained from Blazes in the Nether—into the crafting grid. This powder is then combined with Ender Pearls, dropped by Endermen, to form the Eye of Ender item. A total of twelve of these eyes are required to complete the portal, though preparing for potential failures or misplacement is always recommended.
Mining the Obsidian Foundation
While the eyes handle the activation, the structural integrity of the portal relies entirely on Obsidian blocks. This material is created by pouring water over a lava source block, which produces a block that requires a Diamond or Netherite Pickaxe to mine. Players must mine at least ten obsidian blocks to form the rectangular base of the portal, as the frame necessitates a specific 4 by 5 internal space to align correctly with the stronghold coordinates.
Locating the Stronghold
Before manual construction, players might opt to locate a pre-existing stronghold to access the end portal room naturally. Eyes of Ender are thrown into the air to act as homing devices, floating in the direction of the nearest stronghold. By iteratively throwing multiple eyes and tracking their trajectory, players can triangulate the underground structure’s location and begin excavation efficiently.
Navigating the Stronghold
Once the stronghold is accessed, the player must navigate through winding tunnels to find the end portal room. The presence of the portal is indicated by a pool of lava at the base of a staircase leading to the frame. It is crucial to avoid destroying the portal frame blocks during this journey, as they are often surrounded by Silverfish and other hostile mobs that can disrupt the structure.
Manual Frame Assembly
For players who cannot locate a stronghold or wish to build in a custom location, constructing the frame manually is possible. The frame must be built standing in the exact location where the portal is intended to activate, as the game checks for a valid stronghold biome ID upon construction. The structure requires a 5 by 4 rectangle of obsidian blocks, with the corners left empty, leaving a hollow center for the eyes to be placed.
Activating the Portal
After the obsidian frame is complete, the player places the Eyes of Ender into each of the frame blocks. The interior surface of the obsidian will begin to shimmer with purple particles, indicating the portal is active. Stepping into this purple vortex transports the player to the Nether, provided the destination portal exists or is generated in the target dimension.
Troubleshooting Common Errors
Many attempts to activate a portal fail due to incorrect eye placement or missing frame components. If the portal does not activate, players should verify that every frame block contains an Eye of Ender and that no blocks within the 3 by 4 interior space are obstructing the air. Additionally, attempting to light the portal with flint and steel will fail, as the activation mechanism is exclusive to the eye of ender placement rather than traditional fire mechanics.
